./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-atomic/dekker-b.i --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/pthread-atomic/dekker-b.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8495a4f5aea7cc78cc34cbe091df9506d17978f2685019ca49cb76f0e1f4a919 --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 09:26:32,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 09:26:32,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 09:26:32,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 09:26:32,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 09:26:32,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 09:26:32,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 09:26:32,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 09:26:32,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 09:26:32,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 09:26:32,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 09:26:32,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 09:26:32,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 09:26:32,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 09:26:32,846 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 09:26:32,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 09:26:32,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 09:26:32,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 09:26:32,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 09:26:32,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 09:26:32,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 09:26:32,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 09:26:32,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 09:26:32,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 09:26:32,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 09:26:32,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 09:26:32,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 09:26:32,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 09:26:32,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 09:26:32,880 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 09:26:32,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 09:26:32,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 09:26:32,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 09:26:32,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 09:26:32,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 09:26:32,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 09:26:32,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 09:26:32,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 09:26:32,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 09:26:32,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 09:26:32,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 09:26:32,889 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 09:26:32,922 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 09:26:32,923 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 09:26:32,924 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 09:26:32,924 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 09:26:32,925 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 09:26:32,925 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 09:26:32,926 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 09:26:32,926 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 09:26:32,926 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 09:26:32,927 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 09:26:32,927 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 09:26:32,928 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 09:26:32,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 09:26:32,928 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 09:26:32,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 09:26:32,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 09:26:32,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 09:26:32,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 09:26:32,929 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 09:26:32,929 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 09:26:32,930 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 09:26:32,930 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 09:26:32,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 09:26:32,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 09:26:32,930 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 09:26:32,931 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 09:26:32,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 09:26:32,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 09:26:32,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 09:26:32,932 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 09:26:32,932 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 09:26:32,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 09:26:32,933 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 09:26:32,933 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 09:26:32,933 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 09:26:32,933 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 09:26:32,933 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 09:26:32,934 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8495a4f5aea7cc78cc34cbe091df9506d17978f2685019ca49cb76f0e1f4a919 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 09:26:33,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 09:26:33,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 09:26:33,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 09:26:33,283 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 09:26:33,284 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 09:26:33,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker-b.i [2023-08-29 09:26:34,529 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 09:26:34,817 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 09:26:34,820 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker-b.i [2023-08-29 09:26:34,839 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bda9499d7/82fcea37b12446b4ba24a3a8a37e93b0/FLAG51cde241f [2023-08-29 09:26:34,857 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bda9499d7/82fcea37b12446b4ba24a3a8a37e93b0 [2023-08-29 09:26:34,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 09:26:34,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 09:26:34,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 09:26:34,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 09:26:34,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 09:26:34,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:26:34" (1/1) ... [2023-08-29 09:26:34,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f2d4c95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:34, skipping insertion in model container [2023-08-29 09:26:34,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:26:34" (1/1) ... [2023-08-29 09:26:34,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 09:26:34,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 09:26:35,184 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker-b.i[30165,30178] [2023-08-29 09:26:35,191 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker-b.i[30411,30424] [2023-08-29 09:26:35,203 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 09:26:35,213 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 09:26:35,251 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker-b.i[30165,30178] [2023-08-29 09:26:35,256 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker-b.i[30411,30424] [2023-08-29 09:26:35,275 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 09:26:35,311 INFO L208 MainTranslator]: Completed translation [2023-08-29 09:26:35,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:35 WrapperNode [2023-08-29 09:26:35,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 09:26:35,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 09:26:35,313 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 09:26:35,313 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 09:26:35,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:35" (1/1) ... [2023-08-29 09:26:35,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:35" (1/1) ... [2023-08-29 09:26:35,369 INFO L138 Inliner]: procedures = 168, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2023-08-29 09:26:35,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 09:26:35,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 09:26:35,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 09:26:35,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 09:26:35,380 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:35" (1/1) ... [2023-08-29 09:26:35,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:35" (1/1) ... [2023-08-29 09:26:35,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:35" (1/1) ... [2023-08-29 09:26:35,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:35" (1/1) ... [2023-08-29 09:26:35,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:35" (1/1) ... [2023-08-29 09:26:35,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:35" (1/1) ... [2023-08-29 09:26:35,401 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:35" (1/1) ... [2023-08-29 09:26:35,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:35" (1/1) ... [2023-08-29 09:26:35,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 09:26:35,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 09:26:35,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 09:26:35,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 09:26:35,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:35" (1/1) ... [2023-08-29 09:26:35,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 09:26:35,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 09:26:35,432 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 09:26:35,456 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 09:26:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 09:26:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-08-29 09:26:35,464 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-08-29 09:26:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-29 09:26:35,464 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-29 09:26:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 09:26:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 09:26:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 09:26:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 09:26:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 09:26:35,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 09:26:35,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 09:26:35,465 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 09:26:35,591 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 09:26:35,593 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 09:26:35,943 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 09:26:35,950 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 09:26:35,950 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-29 09:26:35,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:26:35 BoogieIcfgContainer [2023-08-29 09:26:35,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 09:26:35,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 09:26:35,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 09:26:35,957 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 09:26:35,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 09:26:34" (1/3) ... [2023-08-29 09:26:35,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@339797aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:26:35, skipping insertion in model container [2023-08-29 09:26:35,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:35" (2/3) ... [2023-08-29 09:26:35,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@339797aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:26:35, skipping insertion in model container [2023-08-29 09:26:35,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:26:35" (3/3) ... [2023-08-29 09:26:35,960 INFO L112 eAbstractionObserver]: Analyzing ICFG dekker-b.i [2023-08-29 09:26:35,967 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 09:26:35,975 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 09:26:35,975 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-08-29 09:26:35,976 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 09:26:36,079 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 09:26:36,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 197 transitions, 410 flow [2023-08-29 09:26:36,172 INFO L130 PetriNetUnfolder]: 14/195 cut-off events. [2023-08-29 09:26:36,173 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 09:26:36,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 195 events. 14/195 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 459 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 145. Up to 3 conditions per place. [2023-08-29 09:26:36,179 INFO L82 GeneralOperation]: Start removeDead. Operand has 190 places, 197 transitions, 410 flow [2023-08-29 09:26:36,185 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 179 places, 186 transitions, 381 flow [2023-08-29 09:26:36,188 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 09:26:36,201 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 179 places, 186 transitions, 381 flow [2023-08-29 09:26:36,204 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 179 places, 186 transitions, 381 flow [2023-08-29 09:26:36,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 186 transitions, 381 flow [2023-08-29 09:26:36,235 INFO L130 PetriNetUnfolder]: 14/186 cut-off events. [2023-08-29 09:26:36,235 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 09:26:36,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 186 events. 14/186 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 458 event pairs, 0 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 145. Up to 3 conditions per place. [2023-08-29 09:26:36,251 INFO L119 LiptonReduction]: Number of co-enabled transitions 12096 [2023-08-29 09:26:39,263 INFO L134 LiptonReduction]: Checked pairs total: 79496 [2023-08-29 09:26:39,264 INFO L136 LiptonReduction]: Total number of compositions: 114 [2023-08-29 09:26:39,276 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 09:26:39,282 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;@2f618427, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 09:26:39,282 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2023-08-29 09:26:39,283 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 09:26:39,284 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:26:39,284 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:39,284 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 09:26:39,285 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-08-29 09:26:39,289 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:39,289 INFO L85 PathProgramCache]: Analyzing trace with hash 721, now seen corresponding path program 1 times [2023-08-29 09:26:39,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:39,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002544331] [2023-08-29 09:26:39,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:39,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:26:39,378 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 09:26:39,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:26:39,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002544331] [2023-08-29 09:26:39,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002544331] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:26:39,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:26:39,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 09:26:39,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778336196] [2023-08-29 09:26:39,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:26:39,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 09:26:39,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:26:39,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 09:26:39,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 09:26:39,415 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 311 [2023-08-29 09:26:39,417 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 103 transitions, 215 flow. Second operand has 2 states, 2 states have (on average 184.5) internal successors, (369), 2 states have internal predecessors, (369), 0 states have call successors, (0), 0 states 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 09:26:39,417 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:26:39,417 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 311 [2023-08-29 09:26:39,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:26:39,719 INFO L130 PetriNetUnfolder]: 587/1571 cut-off events. [2023-08-29 09:26:39,720 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2023-08-29 09:26:39,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2561 conditions, 1571 events. 587/1571 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 11438 event pairs, 501 based on Foata normal form. 142/1528 useless extension candidates. Maximal degree in co-relation 2425. Up to 947 conditions per place. [2023-08-29 09:26:39,748 INFO L137 encePairwiseOnDemand]: 302/311 looper letters, 33 selfloop transitions, 0 changer transitions 0/93 dead transitions. [2023-08-29 09:26:39,748 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 93 transitions, 261 flow [2023-08-29 09:26:39,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 09:26:39,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 09:26:39,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 410 transitions. [2023-08-29 09:26:39,765 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6591639871382636 [2023-08-29 09:26:39,765 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 410 transitions. [2023-08-29 09:26:39,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 410 transitions. [2023-08-29 09:26:39,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:26:39,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 410 transitions. [2023-08-29 09:26:39,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 205.0) internal successors, (410), 2 states have internal predecessors, (410), 0 states have call successors, (0), 0 states 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 09:26:39,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 311.0) internal successors, (933), 3 states have internal predecessors, (933), 0 states have call successors, (0), 0 states 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 09:26:39,780 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 311.0) internal successors, (933), 3 states have internal predecessors, (933), 0 states have call successors, (0), 0 states 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 09:26:39,782 INFO L175 Difference]: Start difference. First operand has 99 places, 103 transitions, 215 flow. Second operand 2 states and 410 transitions. [2023-08-29 09:26:39,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 93 transitions, 261 flow [2023-08-29 09:26:39,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 93 transitions, 256 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 09:26:39,790 INFO L231 Difference]: Finished difference. Result has 92 places, 93 transitions, 190 flow [2023-08-29 09:26:39,792 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=190, PETRI_PLACES=92, PETRI_TRANSITIONS=93} [2023-08-29 09:26:39,796 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -7 predicate places. [2023-08-29 09:26:39,797 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 93 transitions, 190 flow [2023-08-29 09:26:39,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 184.5) internal successors, (369), 2 states have internal predecessors, (369), 0 states have call successors, (0), 0 states 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 09:26:39,798 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:39,799 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 09:26:39,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 09:26:39,802 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-08-29 09:26:39,809 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:39,810 INFO L85 PathProgramCache]: Analyzing trace with hash 692113465, now seen corresponding path program 1 times [2023-08-29 09:26:39,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:39,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048005284] [2023-08-29 09:26:39,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:39,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:26:39,915 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 09:26:39,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:26:39,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048005284] [2023-08-29 09:26:39,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048005284] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:26:39,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:26:39,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:26:39,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352618219] [2023-08-29 09:26:39,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:26:39,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:26:39,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:26:39,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:26:39,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:26:39,937 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 311 [2023-08-29 09:26:39,938 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 93 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 0 states have call successors, (0), 0 states 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 09:26:39,938 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:26:39,938 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 311 [2023-08-29 09:26:39,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:26:40,158 INFO L130 PetriNetUnfolder]: 810/2093 cut-off events. [2023-08-29 09:26:40,159 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 09:26:40,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3410 conditions, 2093 events. 810/2093 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 15304 event pairs, 625 based on Foata normal form. 0/1812 useless extension candidates. Maximal degree in co-relation 3407. Up to 1209 conditions per place. [2023-08-29 09:26:40,169 INFO L137 encePairwiseOnDemand]: 307/311 looper letters, 53 selfloop transitions, 3 changer transitions 0/112 dead transitions. [2023-08-29 09:26:40,170 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 112 transitions, 342 flow [2023-08-29 09:26:40,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:26:40,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:26:40,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 582 transitions. [2023-08-29 09:26:40,172 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6237942122186495 [2023-08-29 09:26:40,172 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 582 transitions. [2023-08-29 09:26:40,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 582 transitions. [2023-08-29 09:26:40,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:26:40,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 582 transitions. [2023-08-29 09:26:40,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 0 states have call successors, (0), 0 states 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 09:26:40,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 09:26:40,177 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 09:26:40,178 INFO L175 Difference]: Start difference. First operand has 92 places, 93 transitions, 190 flow. Second operand 3 states and 582 transitions. [2023-08-29 09:26:40,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 112 transitions, 342 flow [2023-08-29 09:26:40,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 112 transitions, 342 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 09:26:40,180 INFO L231 Difference]: Finished difference. Result has 95 places, 95 transitions, 209 flow [2023-08-29 09:26:40,180 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=209, PETRI_PLACES=95, PETRI_TRANSITIONS=95} [2023-08-29 09:26:40,181 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -4 predicate places. [2023-08-29 09:26:40,181 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 95 transitions, 209 flow [2023-08-29 09:26:40,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 0 states have call successors, (0), 0 states 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 09:26:40,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:40,182 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:26:40,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 09:26:40,196 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-08-29 09:26:40,197 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:40,197 INFO L85 PathProgramCache]: Analyzing trace with hash -598758925, now seen corresponding path program 1 times [2023-08-29 09:26:40,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:40,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375523929] [2023-08-29 09:26:40,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:40,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:26:40,243 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 09:26:40,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:26:40,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375523929] [2023-08-29 09:26:40,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375523929] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:26:40,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:26:40,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:26:40,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555191195] [2023-08-29 09:26:40,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:26:40,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:26:40,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:26:40,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:26:40,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:26:40,262 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 311 [2023-08-29 09:26:40,263 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 95 transitions, 209 flow. Second operand has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states 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 09:26:40,263 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:26:40,263 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 311 [2023-08-29 09:26:40,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:26:40,631 INFO L130 PetriNetUnfolder]: 1396/3948 cut-off events. [2023-08-29 09:26:40,632 INFO L131 PetriNetUnfolder]: For 70/122 co-relation queries the response was YES. [2023-08-29 09:26:40,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6276 conditions, 3948 events. 1396/3948 cut-off events. For 70/122 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 34225 event pairs, 292 based on Foata normal form. 30/3449 useless extension candidates. Maximal degree in co-relation 6271. Up to 1172 conditions per place. [2023-08-29 09:26:40,653 INFO L137 encePairwiseOnDemand]: 304/311 looper letters, 64 selfloop transitions, 6 changer transitions 0/127 dead transitions. [2023-08-29 09:26:40,654 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 127 transitions, 416 flow [2023-08-29 09:26:40,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:26:40,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:26:40,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 601 transitions. [2023-08-29 09:26:40,656 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6441586280814576 [2023-08-29 09:26:40,656 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 601 transitions. [2023-08-29 09:26:40,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 601 transitions. [2023-08-29 09:26:40,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:26:40,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 601 transitions. [2023-08-29 09:26:40,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 0 states have call successors, (0), 0 states 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 09:26:40,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 09:26:40,660 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 09:26:40,660 INFO L175 Difference]: Start difference. First operand has 95 places, 95 transitions, 209 flow. Second operand 3 states and 601 transitions. [2023-08-29 09:26:40,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 127 transitions, 416 flow [2023-08-29 09:26:40,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 127 transitions, 413 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 09:26:40,666 INFO L231 Difference]: Finished difference. Result has 98 places, 101 transitions, 256 flow [2023-08-29 09:26:40,666 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=98, PETRI_TRANSITIONS=101} [2023-08-29 09:26:40,668 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -1 predicate places. [2023-08-29 09:26:40,668 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 101 transitions, 256 flow [2023-08-29 09:26:40,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states 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 09:26:40,668 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:40,669 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:26:40,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 09:26:40,669 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-08-29 09:26:40,669 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:40,669 INFO L85 PathProgramCache]: Analyzing trace with hash -564568659, now seen corresponding path program 1 times [2023-08-29 09:26:40,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:40,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135178950] [2023-08-29 09:26:40,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:40,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:26:40,763 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 09:26:40,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:26:40,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135178950] [2023-08-29 09:26:40,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135178950] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:26:40,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:26:40,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:26:40,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41440631] [2023-08-29 09:26:40,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:26:40,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:26:40,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:26:40,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:26:40,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:26:40,792 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 311 [2023-08-29 09:26:40,793 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 101 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 states 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 09:26:40,793 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:26:40,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 311 [2023-08-29 09:26:40,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:26:41,132 INFO L130 PetriNetUnfolder]: 1419/3747 cut-off events. [2023-08-29 09:26:41,132 INFO L131 PetriNetUnfolder]: For 621/713 co-relation queries the response was YES. [2023-08-29 09:26:41,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6601 conditions, 3747 events. 1419/3747 cut-off events. For 621/713 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 31240 event pairs, 904 based on Foata normal form. 44/3262 useless extension candidates. Maximal degree in co-relation 6595. Up to 2086 conditions per place. [2023-08-29 09:26:41,158 INFO L137 encePairwiseOnDemand]: 307/311 looper letters, 55 selfloop transitions, 5 changer transitions 0/119 dead transitions. [2023-08-29 09:26:41,158 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 119 transitions, 421 flow [2023-08-29 09:26:41,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:26:41,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:26:41,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 579 transitions. [2023-08-29 09:26:41,161 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6205787781350482 [2023-08-29 09:26:41,161 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 579 transitions. [2023-08-29 09:26:41,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 579 transitions. [2023-08-29 09:26:41,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:26:41,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 579 transitions. [2023-08-29 09:26:41,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states 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 09:26:41,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 09:26:41,166 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 09:26:41,166 INFO L175 Difference]: Start difference. First operand has 98 places, 101 transitions, 256 flow. Second operand 3 states and 579 transitions. [2023-08-29 09:26:41,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 119 transitions, 421 flow [2023-08-29 09:26:41,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 119 transitions, 407 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 09:26:41,171 INFO L231 Difference]: Finished difference. Result has 99 places, 104 transitions, 277 flow [2023-08-29 09:26:41,171 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=277, PETRI_PLACES=99, PETRI_TRANSITIONS=104} [2023-08-29 09:26:41,172 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 0 predicate places. [2023-08-29 09:26:41,172 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 104 transitions, 277 flow [2023-08-29 09:26:41,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 states 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 09:26:41,173 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:41,173 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:26:41,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 09:26:41,173 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-08-29 09:26:41,174 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:41,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1384434450, now seen corresponding path program 1 times [2023-08-29 09:26:41,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:41,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970297934] [2023-08-29 09:26:41,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:41,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:26:41,205 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 09:26:41,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:26:41,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970297934] [2023-08-29 09:26:41,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970297934] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:26:41,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:26:41,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:26:41,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346624418] [2023-08-29 09:26:41,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:26:41,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:26:41,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:26:41,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:26:41,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:26:41,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 311 [2023-08-29 09:26:41,224 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 104 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states 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 09:26:41,224 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:26:41,224 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 311 [2023-08-29 09:26:41,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:26:41,778 INFO L130 PetriNetUnfolder]: 2518/6878 cut-off events. [2023-08-29 09:26:41,780 INFO L131 PetriNetUnfolder]: For 846/928 co-relation queries the response was YES. [2023-08-29 09:26:41,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11780 conditions, 6878 events. 2518/6878 cut-off events. For 846/928 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 65506 event pairs, 559 based on Foata normal form. 5/5928 useless extension candidates. Maximal degree in co-relation 11773. Up to 2001 conditions per place. [2023-08-29 09:26:41,830 INFO L137 encePairwiseOnDemand]: 304/311 looper letters, 70 selfloop transitions, 7 changer transitions 0/137 dead transitions. [2023-08-29 09:26:41,831 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 137 transitions, 514 flow [2023-08-29 09:26:41,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:26:41,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:26:41,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 600 transitions. [2023-08-29 09:26:41,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6430868167202572 [2023-08-29 09:26:41,833 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 600 transitions. [2023-08-29 09:26:41,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 600 transitions. [2023-08-29 09:26:41,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:26:41,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 600 transitions. [2023-08-29 09:26:41,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 200.0) internal successors, (600), 3 states have internal predecessors, (600), 0 states have call successors, (0), 0 states 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 09:26:41,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 09:26:41,838 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 09:26:41,838 INFO L175 Difference]: Start difference. First operand has 99 places, 104 transitions, 277 flow. Second operand 3 states and 600 transitions. [2023-08-29 09:26:41,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 137 transitions, 514 flow [2023-08-29 09:26:41,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 137 transitions, 509 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 09:26:41,845 INFO L231 Difference]: Finished difference. Result has 102 places, 111 transitions, 336 flow [2023-08-29 09:26:41,846 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=102, PETRI_TRANSITIONS=111} [2023-08-29 09:26:41,848 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 3 predicate places. [2023-08-29 09:26:41,848 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 111 transitions, 336 flow [2023-08-29 09:26:41,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states 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 09:26:41,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:41,850 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:26:41,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 09:26:41,851 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-08-29 09:26:41,851 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:41,851 INFO L85 PathProgramCache]: Analyzing trace with hash -627398240, now seen corresponding path program 1 times [2023-08-29 09:26:41,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:41,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785726299] [2023-08-29 09:26:41,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:41,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:26:41,921 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 09:26:41,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:26:41,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785726299] [2023-08-29 09:26:41,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785726299] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:26:41,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:26:41,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:26:41,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011256130] [2023-08-29 09:26:41,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:26:41,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:26:41,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:26:41,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:26:41,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:26:41,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 311 [2023-08-29 09:26:41,941 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 111 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states 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 09:26:41,941 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:26:41,941 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 311 [2023-08-29 09:26:41,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:26:42,390 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][18], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 141#L725-4true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 137#L694true, Black: 212#true, 53#L716true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true]) [2023-08-29 09:26:42,391 INFO L383 tUnfolder$Statistics]: this new event has 34 ancestors and is cut-off event [2023-08-29 09:26:42,391 INFO L386 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-08-29 09:26:42,391 INFO L386 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2023-08-29 09:26:42,391 INFO L386 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2023-08-29 09:26:42,402 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][18], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 67#L726-6true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 137#L694true, Black: 212#true, 53#L716true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true]) [2023-08-29 09:26:42,402 INFO L383 tUnfolder$Statistics]: this new event has 35 ancestors and is cut-off event [2023-08-29 09:26:42,402 INFO L386 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2023-08-29 09:26:42,403 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-29 09:26:42,403 INFO L386 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2023-08-29 09:26:42,470 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][26], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 141#L725-4true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 212#true, 53#L716true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true, 10#L700-2true]) [2023-08-29 09:26:42,471 INFO L383 tUnfolder$Statistics]: this new event has 36 ancestors and is cut-off event [2023-08-29 09:26:42,471 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2023-08-29 09:26:42,471 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2023-08-29 09:26:42,479 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-29 09:26:42,487 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][26], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 67#L726-6true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 212#true, 53#L716true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true, 10#L700-2true]) [2023-08-29 09:26:42,488 INFO L383 tUnfolder$Statistics]: this new event has 37 ancestors and is cut-off event [2023-08-29 09:26:42,488 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2023-08-29 09:26:42,488 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-29 09:26:42,488 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2023-08-29 09:26:42,493 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][18], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 141#L725-4true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 137#L694true, Black: 212#true, 218#true, Black: 201#true, thr2Thread1of1ForFork1InUse, 163#L716-6true]) [2023-08-29 09:26:42,493 INFO L383 tUnfolder$Statistics]: this new event has 37 ancestors and is cut-off event [2023-08-29 09:26:42,493 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-29 09:26:42,493 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2023-08-29 09:26:42,493 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2023-08-29 09:26:42,502 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][18], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 137#L694true, 67#L726-6true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 212#true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true, 163#L716-6true]) [2023-08-29 09:26:42,502 INFO L383 tUnfolder$Statistics]: this new event has 38 ancestors and is cut-off event [2023-08-29 09:26:42,502 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-08-29 09:26:42,502 INFO L386 tUnfolder$Statistics]: existing Event has 23 ancestors and is cut-off event [2023-08-29 09:26:42,502 INFO L386 tUnfolder$Statistics]: existing Event has 23 ancestors and is cut-off event [2023-08-29 09:26:42,519 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][26], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 141#L725-4true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 212#true, 218#true, Black: 201#true, thr2Thread1of1ForFork1InUse, 163#L716-6true, 10#L700-2true]) [2023-08-29 09:26:42,519 INFO L383 tUnfolder$Statistics]: this new event has 39 ancestors and is cut-off event [2023-08-29 09:26:42,519 INFO L386 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2023-08-29 09:26:42,519 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-08-29 09:26:42,519 INFO L386 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2023-08-29 09:26:42,520 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][18], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 141#L725-4true, 77#L717-2true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 137#L694true, Black: 212#true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true]) [2023-08-29 09:26:42,520 INFO L383 tUnfolder$Statistics]: this new event has 39 ancestors and is cut-off event [2023-08-29 09:26:42,520 INFO L386 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2023-08-29 09:26:42,520 INFO L386 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2023-08-29 09:26:42,520 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-08-29 09:26:42,527 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][26], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 67#L726-6true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 212#true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true, 163#L716-6true, 10#L700-2true]) [2023-08-29 09:26:42,527 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2023-08-29 09:26:42,528 INFO L386 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-08-29 09:26:42,528 INFO L386 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-08-29 09:26:42,528 INFO L386 tUnfolder$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-08-29 09:26:42,528 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][18], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 77#L717-2true, 67#L726-6true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 137#L694true, Black: 212#true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true]) [2023-08-29 09:26:42,528 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2023-08-29 09:26:42,528 INFO L386 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-08-29 09:26:42,528 INFO L386 tUnfolder$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-08-29 09:26:42,529 INFO L386 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-08-29 09:26:42,534 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][18], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 141#L725-4true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 137#L694true, 128#L718true, Black: 212#true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true]) [2023-08-29 09:26:42,534 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2023-08-29 09:26:42,534 INFO L386 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-08-29 09:26:42,534 INFO L386 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-08-29 09:26:42,535 INFO L386 tUnfolder$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-08-29 09:26:42,535 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([592] L718-1-->L718-3: Formula: (= |v_thr2Thread1of1ForFork1_#t~nondet14_13| |v_#race~flag2~0_16|) InVars {} OutVars{thr2Thread1of1ForFork1_#t~nondet14=|v_thr2Thread1of1ForFork1_#t~nondet14_13|, #race~flag2~0=|v_#race~flag2~0_16|} AuxVars[] AssignedVars[thr2Thread1of1ForFork1_#t~nondet14, #race~flag2~0][119], [214#(= |#race~flag1~0| 0), 116#L693-2true, 220#(= ~flag2~0 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 141#L725-4true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 212#true, 144#L718-3true, thr2Thread1of1ForFork1InUse, Black: 203#(= |#race~flag2~0| 0)]) [2023-08-29 09:26:42,535 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is cut-off event [2023-08-29 09:26:42,535 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-29 09:26:42,535 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-29 09:26:42,535 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-08-29 09:26:42,538 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][18], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 67#L726-6true, 137#L694true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 128#L718true, Black: 212#true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true]) [2023-08-29 09:26:42,539 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is cut-off event [2023-08-29 09:26:42,539 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-29 09:26:42,539 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-29 09:26:42,539 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-08-29 09:26:42,539 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([592] L718-1-->L718-3: Formula: (= |v_thr2Thread1of1ForFork1_#t~nondet14_13| |v_#race~flag2~0_16|) InVars {} OutVars{thr2Thread1of1ForFork1_#t~nondet14=|v_thr2Thread1of1ForFork1_#t~nondet14_13|, #race~flag2~0=|v_#race~flag2~0_16|} AuxVars[] AssignedVars[thr2Thread1of1ForFork1_#t~nondet14, #race~flag2~0][119], [214#(= |#race~flag1~0| 0), 116#L693-2true, 220#(= ~flag2~0 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 67#L726-6true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 212#true, thr2Thread1of1ForFork1InUse, 144#L718-3true, Black: 203#(= |#race~flag2~0| 0)]) [2023-08-29 09:26:42,540 INFO L383 tUnfolder$Statistics]: this new event has 42 ancestors and is cut-off event [2023-08-29 09:26:42,540 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-29 09:26:42,540 INFO L386 tUnfolder$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-08-29 09:26:42,540 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-29 09:26:42,544 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][26], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 141#L725-4true, 77#L717-2true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 212#true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true, 10#L700-2true]) [2023-08-29 09:26:42,544 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is cut-off event [2023-08-29 09:26:42,544 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-29 09:26:42,544 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-08-29 09:26:42,544 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-29 09:26:42,546 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][26], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 77#L717-2true, 67#L726-6true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 212#true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true, 10#L700-2true]) [2023-08-29 09:26:42,546 INFO L383 tUnfolder$Statistics]: this new event has 42 ancestors and is cut-off event [2023-08-29 09:26:42,546 INFO L386 tUnfolder$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-08-29 09:26:42,546 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-29 09:26:42,546 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-29 09:26:42,549 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][25], [214#(= |#race~flag1~0| 0), 220#(= ~flag2~0 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 141#L725-4true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 12#L718-1true, Black: 212#true, thr2Thread1of1ForFork1InUse, Black: 201#true, 10#L700-2true]) [2023-08-29 09:26:42,549 INFO L383 tUnfolder$Statistics]: this new event has 43 ancestors and is cut-off event [2023-08-29 09:26:42,550 INFO L386 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-08-29 09:26:42,550 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-29 09:26:42,550 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-29 09:26:42,550 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][26], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 141#L725-4true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 128#L718true, Black: 212#true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true, 10#L700-2true]) [2023-08-29 09:26:42,550 INFO L383 tUnfolder$Statistics]: this new event has 42 ancestors and is cut-off event [2023-08-29 09:26:42,550 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-29 09:26:42,550 INFO L386 tUnfolder$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-08-29 09:26:42,551 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-29 09:26:42,551 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][25], [214#(= |#race~flag1~0| 0), 220#(= ~flag2~0 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 67#L726-6true, 12#L718-1true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 212#true, thr2Thread1of1ForFork1InUse, Black: 201#true, 10#L700-2true]) [2023-08-29 09:26:42,552 INFO L383 tUnfolder$Statistics]: this new event has 44 ancestors and is cut-off event [2023-08-29 09:26:42,552 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-08-29 09:26:42,552 INFO L386 tUnfolder$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-08-29 09:26:42,552 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-08-29 09:26:42,552 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][26], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 67#L726-6true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 128#L718true, Black: 212#true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true, 10#L700-2true]) [2023-08-29 09:26:42,552 INFO L383 tUnfolder$Statistics]: this new event has 43 ancestors and is cut-off event [2023-08-29 09:26:42,553 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-29 09:26:42,553 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-29 09:26:42,553 INFO L386 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-08-29 09:26:42,555 INFO L130 PetriNetUnfolder]: 2478/6456 cut-off events. [2023-08-29 09:26:42,555 INFO L131 PetriNetUnfolder]: For 993/1105 co-relation queries the response was YES. [2023-08-29 09:26:42,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11783 conditions, 6456 events. 2478/6456 cut-off events. For 993/1105 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 59456 event pairs, 763 based on Foata normal form. 88/5723 useless extension candidates. Maximal degree in co-relation 11775. Up to 2388 conditions per place. [2023-08-29 09:26:42,594 INFO L137 encePairwiseOnDemand]: 305/311 looper letters, 56 selfloop transitions, 5 changer transitions 0/129 dead transitions. [2023-08-29 09:26:42,594 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 129 transitions, 511 flow [2023-08-29 09:26:42,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:26:42,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:26:42,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 586 transitions. [2023-08-29 09:26:42,596 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6280814576634512 [2023-08-29 09:26:42,596 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 586 transitions. [2023-08-29 09:26:42,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 586 transitions. [2023-08-29 09:26:42,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:26:42,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 586 transitions. [2023-08-29 09:26:42,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 195.33333333333334) internal successors, (586), 3 states have internal predecessors, (586), 0 states have call successors, (0), 0 states 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 09:26:42,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 09:26:42,600 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 09:26:42,601 INFO L175 Difference]: Start difference. First operand has 102 places, 111 transitions, 336 flow. Second operand 3 states and 586 transitions. [2023-08-29 09:26:42,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 129 transitions, 511 flow [2023-08-29 09:26:42,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 129 transitions, 493 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 09:26:42,606 INFO L231 Difference]: Finished difference. Result has 103 places, 111 transitions, 339 flow [2023-08-29 09:26:42,606 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=339, PETRI_PLACES=103, PETRI_TRANSITIONS=111} [2023-08-29 09:26:42,607 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 4 predicate places. [2023-08-29 09:26:42,607 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 111 transitions, 339 flow [2023-08-29 09:26:42,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states 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 09:26:42,607 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:42,608 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:26:42,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 09:26:42,608 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-08-29 09:26:42,608 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:42,608 INFO L85 PathProgramCache]: Analyzing trace with hash -2128350431, now seen corresponding path program 1 times [2023-08-29 09:26:42,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:42,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119603232] [2023-08-29 09:26:42,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:42,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:26:42,626 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 09:26:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:26:42,657 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 09:26:42,657 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 09:26:42,658 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2023-08-29 09:26:42,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2023-08-29 09:26:42,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2023-08-29 09:26:42,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2023-08-29 09:26:42,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2023-08-29 09:26:42,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2023-08-29 09:26:42,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2023-08-29 09:26:42,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2023-08-29 09:26:42,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2023-08-29 09:26:42,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2023-08-29 09:26:42,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2023-08-29 09:26:42,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2023-08-29 09:26:42,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2023-08-29 09:26:42,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2023-08-29 09:26:42,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2023-08-29 09:26:42,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2023-08-29 09:26:42,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2023-08-29 09:26:42,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2023-08-29 09:26:42,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2023-08-29 09:26:42,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2023-08-29 09:26:42,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2023-08-29 09:26:42,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2023-08-29 09:26:42,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2023-08-29 09:26:42,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2023-08-29 09:26:42,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2023-08-29 09:26:42,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 46 remaining) [2023-08-29 09:26:42,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 46 remaining) [2023-08-29 09:26:42,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2023-08-29 09:26:42,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2023-08-29 09:26:42,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2023-08-29 09:26:42,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2023-08-29 09:26:42,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2023-08-29 09:26:42,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2023-08-29 09:26:42,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2023-08-29 09:26:42,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2023-08-29 09:26:42,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2023-08-29 09:26:42,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2023-08-29 09:26:42,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2023-08-29 09:26:42,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2023-08-29 09:26:42,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2023-08-29 09:26:42,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2023-08-29 09:26:42,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2023-08-29 09:26:42,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2023-08-29 09:26:42,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2023-08-29 09:26:42,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2023-08-29 09:26:42,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2023-08-29 09:26:42,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 09:26:42,672 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:26:42,679 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 09:26:42,679 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 09:26:42,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 09:26:42 BasicIcfg [2023-08-29 09:26:42,718 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 09:26:42,719 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 09:26:42,719 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 09:26:42,719 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 09:26:42,719 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:26:35" (3/4) ... [2023-08-29 09:26:42,722 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 09:26:42,722 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 09:26:42,722 INFO L158 Benchmark]: Toolchain (without parser) took 7862.46ms. Allocated memory was 77.6MB in the beginning and 534.8MB in the end (delta: 457.2MB). Free memory was 53.6MB in the beginning and 328.6MB in the end (delta: -275.0MB). Peak memory consumption was 181.9MB. Max. memory is 16.1GB. [2023-08-29 09:26:42,723 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory is still 38.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 09:26:42,723 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.82ms. Allocated memory is still 77.6MB. Free memory was 53.4MB in the beginning and 51.6MB in the end (delta: 1.8MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2023-08-29 09:26:42,723 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.21ms. Allocated memory is still 77.6MB. Free memory was 51.6MB in the beginning and 49.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 09:26:42,723 INFO L158 Benchmark]: Boogie Preprocessor took 34.97ms. Allocated memory is still 77.6MB. Free memory was 49.5MB in the beginning and 47.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 09:26:42,724 INFO L158 Benchmark]: RCFGBuilder took 547.44ms. Allocated memory is still 77.6MB. Free memory was 47.9MB in the beginning and 29.7MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-29 09:26:42,726 INFO L158 Benchmark]: TraceAbstraction took 6763.60ms. Allocated memory was 77.6MB in the beginning and 534.8MB in the end (delta: 457.2MB). Free memory was 29.0MB in the beginning and 328.6MB in the end (delta: -299.6MB). Peak memory consumption was 155.9MB. Max. memory is 16.1GB. [2023-08-29 09:26:42,726 INFO L158 Benchmark]: Witness Printer took 3.24ms. Allocated memory is still 534.8MB. Free memory is still 328.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 09:26:42,727 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory is still 38.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 450.82ms. Allocated memory is still 77.6MB. Free memory was 53.4MB in the beginning and 51.6MB in the end (delta: 1.8MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.21ms. Allocated memory is still 77.6MB. Free memory was 51.6MB in the beginning and 49.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.97ms. Allocated memory is still 77.6MB. Free memory was 49.5MB in the beginning and 47.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 547.44ms. Allocated memory is still 77.6MB. Free memory was 47.9MB in the beginning and 29.7MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6763.60ms. Allocated memory was 77.6MB in the beginning and 534.8MB in the end (delta: 457.2MB). Free memory was 29.0MB in the beginning and 328.6MB in the end (delta: -299.6MB). Peak memory consumption was 155.9MB. Max. memory is 16.1GB. * Witness Printer took 3.24ms. Allocated memory is still 534.8MB. Free memory is still 328.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 179 PlacesBefore, 99 PlacesAfterwards, 186 TransitionsBefore, 103 TransitionsAfterwards, 12096 CoEnabledTransitionPairs, 8 FixpointIterations, 38 TrivialSequentialCompositions, 58 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 114 TotalNumberOfCompositions, 79496 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26805, independent: 25465, independent conditional: 0, independent unconditional: 25465, dependent: 1340, dependent conditional: 0, dependent unconditional: 1340, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5639, independent: 5520, independent conditional: 0, independent unconditional: 5520, dependent: 119, dependent conditional: 0, dependent unconditional: 119, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 26805, independent: 19945, independent conditional: 0, independent unconditional: 19945, dependent: 1221, dependent conditional: 0, dependent unconditional: 1221, unknown: 5639, unknown conditional: 0, unknown unconditional: 5639] , Statistics on independence cache: Total cache size (in pairs): 1469, Positive cache size: 1384, Positive conditional cache size: 0, Positive unconditional cache size: 1384, Negative cache size: 85, Negative conditional cache size: 0, Negative unconditional cache size: 85, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 693]: Data race detected Data race detected The following path leads to a data race: [L688] 0 int flag1 = 0, flag2 = 0; [L689] 0 int turn; [L690] 0 int x; [L722] 0 pthread_t t1, t2; [L723] EXPR 0 0<=turn [L723] EXPR 0 0<=turn && turn<=1 [L723] EXPR 0 turn<=1 [L723] EXPR 0 0<=turn && turn<=1 [L723] CALL 0 assume_abort_if_not(0<=turn && turn<=1) [L3] COND FALSE 0 !(!cond) [L723] RET 0 assume_abort_if_not(0<=turn && turn<=1) [L724] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [_={0:0}, flag1=0, flag2=0, pthread_create(&t1, 0, thr1, 0)=-2, t1={3:0}, t2={5:0}, turn=0, x=0] [L692] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=0, turn=0, x=0] [L693] 1 flag2 >= 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=0, turn=0, x=0] [L725] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [_={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=0, pthread_create(&t2, 0, thr2, 0)=-1, t1={3:0}, t2={5:0}, turn=0, x=0] [L707] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2 = 1=49, flag2=1, turn=0, x=0] [L693] 1 flag2 >= 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2 = 1=49, flag2=1, turn=0, x=0] Now there is a data race on ~flag2~0 between C: flag2 = 1 [707] and C: flag2 >= 1 [693] - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 726]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 727]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 724]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 302 locations, 46 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: 6.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 231 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 135 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 534 IncrementalHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 26 mSDtfsCounter, 534 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=339occurred in iteration=6, InterpolantAutomatonStates: 17, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 55 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-29 09:26:42,776 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE