./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c 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 /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.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 da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 15:51:13,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 15:51:13,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 15:51:13,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 15:51:13,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 15:51:13,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 15:51:13,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 15:51:13,790 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 15:51:13,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 15:51:13,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 15:51:13,795 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 15:51:13,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 15:51:13,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 15:51:13,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 15:51:13,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 15:51:13,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 15:51:13,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 15:51:13,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 15:51:13,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 15:51:13,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 15:51:13,813 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 15:51:13,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 15:51:13,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 15:51:13,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 15:51:13,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 15:51:13,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 15:51:13,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 15:51:13,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 15:51:13,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 15:51:13,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 15:51:13,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 15:51:13,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 15:51:13,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 15:51:13,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 15:51:13,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 15:51:13,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 15:51:13,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 15:51:13,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 15:51:13,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 15:51:13,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 15:51:13,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 15:51:13,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 15:51:13,830 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 15:51:13,855 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 15:51:13,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 15:51:13,856 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 15:51:13,856 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 15:51:13,857 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 15:51:13,857 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 15:51:13,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 15:51:13,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 15:51:13,857 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 15:51:13,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 15:51:13,858 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 15:51:13,858 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 15:51:13,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 15:51:13,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 15:51:13,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 15:51:13,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 15:51:13,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 15:51:13,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 15:51:13,859 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 15:51:13,860 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 15:51:13,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 15:51:13,860 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 15:51:13,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 15:51:13,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 15:51:13,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 15:51:13,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 15:51:13,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:51:13,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 15:51:13,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 15:51:13,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 15:51:13,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 15:51:13,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 15:51:13,862 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 15:51:13,862 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 15:51:13,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 15:51:13,862 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b [2022-04-18 15:51:14,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 15:51:14,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 15:51:14,050 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 15:51:14,051 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 15:51:14,052 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 15:51:14,053 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i [2022-04-18 15:51:14,100 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be0ddab7c/8e78c739b4e1464e8cf6e3f2baee959c/FLAG8bd85e567 [2022-04-18 15:51:14,491 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 15:51:14,491 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i [2022-04-18 15:51:14,505 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be0ddab7c/8e78c739b4e1464e8cf6e3f2baee959c/FLAG8bd85e567 [2022-04-18 15:51:14,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be0ddab7c/8e78c739b4e1464e8cf6e3f2baee959c [2022-04-18 15:51:14,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 15:51:14,872 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 15:51:14,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 15:51:14,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 15:51:14,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 15:51:14,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:51:14" (1/1) ... [2022-04-18 15:51:14,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5363bb6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:14, skipping insertion in model container [2022-04-18 15:51:14,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:51:14" (1/1) ... [2022-04-18 15:51:14,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 15:51:14,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 15:51:15,249 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i[47038,47051] [2022-04-18 15:51:15,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:51:15,313 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 15:51:15,330 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i[47038,47051] [2022-04-18 15:51:15,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:51:15,406 INFO L208 MainTranslator]: Completed translation [2022-04-18 15:51:15,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:15 WrapperNode [2022-04-18 15:51:15,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 15:51:15,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 15:51:15,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 15:51:15,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 15:51:15,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:15" (1/1) ... [2022-04-18 15:51:15,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:15" (1/1) ... [2022-04-18 15:51:15,464 INFO L137 Inliner]: procedures = 279, calls = 86, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 517 [2022-04-18 15:51:15,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 15:51:15,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 15:51:15,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 15:51:15,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 15:51:15,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:15" (1/1) ... [2022-04-18 15:51:15,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:15" (1/1) ... [2022-04-18 15:51:15,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:15" (1/1) ... [2022-04-18 15:51:15,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:15" (1/1) ... [2022-04-18 15:51:15,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:15" (1/1) ... [2022-04-18 15:51:15,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:15" (1/1) ... [2022-04-18 15:51:15,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:15" (1/1) ... [2022-04-18 15:51:15,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 15:51:15,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 15:51:15,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 15:51:15,554 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 15:51:15,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:15" (1/1) ... [2022-04-18 15:51:15,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:51:15,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:51:15,578 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) [2022-04-18 15:51:15,583 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 [2022-04-18 15:51:15,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 15:51:15,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-18 15:51:15,621 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-04-18 15:51:15,621 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-04-18 15:51:15,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 15:51:15,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 15:51:15,622 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-04-18 15:51:15,622 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-04-18 15:51:15,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 15:51:15,622 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 15:51:15,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 15:51:15,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 15:51:15,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-18 15:51:15,622 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2022-04-18 15:51:15,622 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2022-04-18 15:51:15,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 15:51:15,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 15:51:15,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 15:51:15,623 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 15:51:15,744 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 15:51:15,745 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 15:51:16,306 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 15:51:16,313 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 15:51:16,313 INFO L299 CfgBuilder]: Removed 28 assume(true) statements. [2022-04-18 15:51:16,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:51:16 BoogieIcfgContainer [2022-04-18 15:51:16,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 15:51:16,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 15:51:16,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 15:51:16,318 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 15:51:16,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:51:14" (1/3) ... [2022-04-18 15:51:16,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43cd12a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:51:16, skipping insertion in model container [2022-04-18 15:51:16,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:15" (2/3) ... [2022-04-18 15:51:16,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43cd12a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:51:16, skipping insertion in model container [2022-04-18 15:51:16,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:51:16" (3/3) ... [2022-04-18 15:51:16,320 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_85-list2_racefree.i [2022-04-18 15:51:16,323 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 15:51:16,323 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 15:51:16,324 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-04-18 15:51:16,324 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 15:51:16,429 INFO L135 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-04-18 15:51:16,467 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 15:51:16,473 INFO L340 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 [2022-04-18 15:51:16,474 INFO L341 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2022-04-18 15:51:16,492 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 535 places, 574 transitions, 1190 flow [2022-04-18 15:51:16,894 INFO L129 PetriNetUnfolder]: 165/1628 cut-off events. [2022-04-18 15:51:16,894 INFO L130 PetriNetUnfolder]: For 36/66 co-relation queries the response was YES. [2022-04-18 15:51:16,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1689 conditions, 1628 events. 165/1628 cut-off events. For 36/66 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11557 event pairs, 0 based on Foata normal form. 0/1365 useless extension candidates. Maximal degree in co-relation 836. Up to 16 conditions per place. [2022-04-18 15:51:16,945 INFO L82 GeneralOperation]: Start removeDead. Operand has 535 places, 574 transitions, 1190 flow [2022-04-18 15:51:16,961 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 535 places, 574 transitions, 1190 flow [2022-04-18 15:51:16,964 INFO L129 PetriNetUnfolder]: 0/47 cut-off events. [2022-04-18 15:51:16,964 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 15:51:16,964 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:16,965 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:16,965 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-04-18 15:51:16,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:16,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1483080218, now seen corresponding path program 1 times [2022-04-18 15:51:16,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:16,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088287382] [2022-04-18 15:51:16,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:16,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:17,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:17,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:17,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088287382] [2022-04-18 15:51:17,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088287382] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:17,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:17,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:51:17,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124582606] [2022-04-18 15:51:17,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:17,149 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:51:17,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:17,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:51:17,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:51:17,172 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 515 out of 574 [2022-04-18 15:51:17,176 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 574 transitions, 1190 flow. Second operand has 3 states, 3 states have (on average 516.3333333333334) internal successors, (1549), 3 states have internal predecessors, (1549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:17,177 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:17,177 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 515 of 574 [2022-04-18 15:51:17,178 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:18,350 INFO L129 PetriNetUnfolder]: 315/5379 cut-off events. [2022-04-18 15:51:18,350 INFO L130 PetriNetUnfolder]: For 675/888 co-relation queries the response was YES. [2022-04-18 15:51:18,413 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5993 conditions, 5379 events. 315/5379 cut-off events. For 675/888 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 48096 event pairs, 150 based on Foata normal form. 654/5403 useless extension candidates. Maximal degree in co-relation 4059. Up to 371 conditions per place. [2022-04-18 15:51:18,446 INFO L132 encePairwiseOnDemand]: 541/574 looper letters, 24 selfloop transitions, 2 changer transitions 0/541 dead transitions. [2022-04-18 15:51:18,446 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 541 transitions, 1176 flow [2022-04-18 15:51:18,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:51:18,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:51:18,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1602 transitions. [2022-04-18 15:51:18,472 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9303135888501742 [2022-04-18 15:51:18,473 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1602 transitions. [2022-04-18 15:51:18,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1602 transitions. [2022-04-18 15:51:18,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:18,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1602 transitions. [2022-04-18 15:51:18,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 534.0) internal successors, (1602), 3 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:18,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 574.0) internal successors, (2296), 4 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:18,488 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 574.0) internal successors, (2296), 4 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:18,489 INFO L186 Difference]: Start difference. First operand has 535 places, 574 transitions, 1190 flow. Second operand 3 states and 1602 transitions. [2022-04-18 15:51:18,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 541 transitions, 1176 flow [2022-04-18 15:51:18,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 534 places, 541 transitions, 1176 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 15:51:18,541 INFO L242 Difference]: Finished difference. Result has 534 places, 541 transitions, 1128 flow [2022-04-18 15:51:18,544 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=574, PETRI_DIFFERENCE_MINUEND_FLOW=1124, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1128, PETRI_PLACES=534, PETRI_TRANSITIONS=541} [2022-04-18 15:51:18,546 INFO L335 CegarLoopForPetriNet]: 535 programPoint places, -1 predicate places. [2022-04-18 15:51:18,547 INFO L478 AbstractCegarLoop]: Abstraction has has 534 places, 541 transitions, 1128 flow [2022-04-18 15:51:18,548 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 516.3333333333334) internal successors, (1549), 3 states have internal predecessors, (1549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:18,548 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:18,548 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:18,548 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 15:51:18,548 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-04-18 15:51:18,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:18,549 INFO L85 PathProgramCache]: Analyzing trace with hash -730148464, now seen corresponding path program 1 times [2022-04-18 15:51:18,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:18,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298810130] [2022-04-18 15:51:18,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:18,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:18,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:18,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:18,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298810130] [2022-04-18 15:51:18,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298810130] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:18,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:18,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:51:18,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033736544] [2022-04-18 15:51:18,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:18,612 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:51:18,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:18,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:51:18,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:51:18,615 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 518 out of 574 [2022-04-18 15:51:18,617 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 534 places, 541 transitions, 1128 flow. Second operand has 3 states, 3 states have (on average 519.3333333333334) internal successors, (1558), 3 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:18,617 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:18,617 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 518 of 574 [2022-04-18 15:51:18,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:19,519 INFO L129 PetriNetUnfolder]: 235/5037 cut-off events. [2022-04-18 15:51:19,519 INFO L130 PetriNetUnfolder]: For 482/641 co-relation queries the response was YES. [2022-04-18 15:51:19,573 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5454 conditions, 5037 events. 235/5037 cut-off events. For 482/641 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 43630 event pairs, 82 based on Foata normal form. 0/4527 useless extension candidates. Maximal degree in co-relation 5395. Up to 235 conditions per place. [2022-04-18 15:51:19,592 INFO L132 encePairwiseOnDemand]: 570/574 looper letters, 19 selfloop transitions, 1 changer transitions 0/538 dead transitions. [2022-04-18 15:51:19,593 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 533 places, 538 transitions, 1162 flow [2022-04-18 15:51:19,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:51:19,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:51:19,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1577 transitions. [2022-04-18 15:51:19,596 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9157955865272939 [2022-04-18 15:51:19,596 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1577 transitions. [2022-04-18 15:51:19,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1577 transitions. [2022-04-18 15:51:19,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:19,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1577 transitions. [2022-04-18 15:51:19,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 525.6666666666666) internal successors, (1577), 3 states have internal predecessors, (1577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:19,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 574.0) internal successors, (2296), 4 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:19,603 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 574.0) internal successors, (2296), 4 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:19,603 INFO L186 Difference]: Start difference. First operand has 534 places, 541 transitions, 1128 flow. Second operand 3 states and 1577 transitions. [2022-04-18 15:51:19,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 533 places, 538 transitions, 1162 flow [2022-04-18 15:51:19,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 538 transitions, 1158 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:51:19,612 INFO L242 Difference]: Finished difference. Result has 531 places, 538 transitions, 1120 flow [2022-04-18 15:51:19,613 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=574, PETRI_DIFFERENCE_MINUEND_FLOW=1118, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=538, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1120, PETRI_PLACES=531, PETRI_TRANSITIONS=538} [2022-04-18 15:51:19,614 INFO L335 CegarLoopForPetriNet]: 535 programPoint places, -4 predicate places. [2022-04-18 15:51:19,614 INFO L478 AbstractCegarLoop]: Abstraction has has 531 places, 538 transitions, 1120 flow [2022-04-18 15:51:19,615 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 519.3333333333334) internal successors, (1558), 3 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:19,615 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:19,615 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:19,615 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 15:51:19,616 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-04-18 15:51:19,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:19,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1943411359, now seen corresponding path program 1 times [2022-04-18 15:51:19,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:19,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014151121] [2022-04-18 15:51:19,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:19,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:19,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:19,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:19,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014151121] [2022-04-18 15:51:19,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014151121] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:19,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:19,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 15:51:19,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811301833] [2022-04-18 15:51:19,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:19,711 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:51:19,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:19,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:51:19,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:51:19,714 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 574 [2022-04-18 15:51:19,716 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 531 places, 538 transitions, 1120 flow. Second operand has 6 states, 6 states have (on average 363.5) internal successors, (2181), 6 states have internal predecessors, (2181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:19,716 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:19,716 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 574 [2022-04-18 15:51:19,716 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand