./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.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/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.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 b9cb80ce7b0c0db24d48a98e6e8d1fa81dc0ba8a1f2c5d148b0b0229d5ab18a1 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 18:11:45,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 18:11:45,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 18:11:45,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 18:11:45,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 18:11:45,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 18:11:45,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 18:11:45,790 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 18:11:45,792 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 18:11:45,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 18:11:45,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 18:11:45,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 18:11:45,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 18:11:45,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 18:11:45,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 18:11:45,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 18:11:45,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 18:11:45,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 18:11:45,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 18:11:45,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 18:11:45,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 18:11:45,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 18:11:45,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 18:11:45,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 18:11:45,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 18:11:45,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 18:11:45,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 18:11:45,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 18:11:45,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 18:11:45,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 18:11:45,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 18:11:45,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 18:11:45,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 18:11:45,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 18:11:45,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 18:11:45,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 18:11:45,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 18:11:45,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 18:11:45,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 18:11:45,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 18:11:45,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 18:11:45,840 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 18:11:45,874 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 18:11:45,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 18:11:45,876 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 18:11:45,876 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 18:11:45,877 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 18:11:45,877 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 18:11:45,877 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 18:11:45,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 18:11:45,878 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 18:11:45,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 18:11:45,879 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 18:11:45,879 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 18:11:45,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 18:11:45,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 18:11:45,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 18:11:45,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 18:11:45,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 18:11:45,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 18:11:45,880 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 18:11:45,880 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 18:11:45,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 18:11:45,880 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 18:11:45,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 18:11:45,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 18:11:45,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 18:11:45,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 18:11:45,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:11:45,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 18:11:45,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 18:11:45,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 18:11:45,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 18:11:45,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 18:11:45,883 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 18:11:45,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 18:11:45,883 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 18:11:45,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 18:11:45,883 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 18:11:45,883 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9cb80ce7b0c0db24d48a98e6e8d1fa81dc0ba8a1f2c5d148b0b0229d5ab18a1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 18:11:46,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 18:11:46,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 18:11:46,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 18:11:46,178 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 18:11:46,180 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 18:11:46,182 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2023-08-29 18:11:47,379 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 18:11:47,623 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 18:11:47,623 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2023-08-29 18:11:47,633 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97bd0b259/fa6a098e46704527a0659a85551ae763/FLAG4e74009a2 [2023-08-29 18:11:47,643 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97bd0b259/fa6a098e46704527a0659a85551ae763 [2023-08-29 18:11:47,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 18:11:47,646 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 18:11:47,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 18:11:47,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 18:11:47,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 18:11:47,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:11:47" (1/1) ... [2023-08-29 18:11:47,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d6694e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:47, skipping insertion in model container [2023-08-29 18:11:47,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:11:47" (1/1) ... [2023-08-29 18:11:47,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 18:11:47,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 18:11:47,809 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i[1107,1120] [2023-08-29 18:11:47,928 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:11:47,942 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 18:11:47,953 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i[1107,1120] [2023-08-29 18:11:47,993 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:11:48,083 INFO L208 MainTranslator]: Completed translation [2023-08-29 18:11:48,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:48 WrapperNode [2023-08-29 18:11:48,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 18:11:48,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 18:11:48,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 18:11:48,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 18:11:48,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:48" (1/1) ... [2023-08-29 18:11:48,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:48" (1/1) ... [2023-08-29 18:11:48,134 INFO L138 Inliner]: procedures = 163, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2023-08-29 18:11:48,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 18:11:48,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 18:11:48,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 18:11:48,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 18:11:48,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:48" (1/1) ... [2023-08-29 18:11:48,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:48" (1/1) ... [2023-08-29 18:11:48,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:48" (1/1) ... [2023-08-29 18:11:48,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:48" (1/1) ... [2023-08-29 18:11:48,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:48" (1/1) ... [2023-08-29 18:11:48,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:48" (1/1) ... [2023-08-29 18:11:48,157 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:48" (1/1) ... [2023-08-29 18:11:48,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:48" (1/1) ... [2023-08-29 18:11:48,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 18:11:48,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 18:11:48,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 18:11:48,162 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 18:11:48,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:48" (1/1) ... [2023-08-29 18:11:48,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:11:48,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:11:48,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 18:11:48,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 18:11:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 18:11:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 18:11:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 18:11:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 18:11:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 18:11:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 18:11:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 18:11:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 18:11:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 18:11:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 18:11:48,246 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 18:11:48,369 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 18:11:48,371 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 18:11:48,555 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 18:11:48,562 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 18:11:48,562 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 18:11:48,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:11:48 BoogieIcfgContainer [2023-08-29 18:11:48,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 18:11:48,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 18:11:48,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 18:11:48,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 18:11:48,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:11:47" (1/3) ... [2023-08-29 18:11:48,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a7af6a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:11:48, skipping insertion in model container [2023-08-29 18:11:48,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:48" (2/3) ... [2023-08-29 18:11:48,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a7af6a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:11:48, skipping insertion in model container [2023-08-29 18:11:48,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:11:48" (3/3) ... [2023-08-29 18:11:48,571 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2023-08-29 18:11:48,578 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 18:11:48,586 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 18:11:48,587 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-08-29 18:11:48,587 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 18:11:48,674 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 18:11:48,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 97 transitions, 199 flow [2023-08-29 18:11:48,765 INFO L130 PetriNetUnfolder]: 2/96 cut-off events. [2023-08-29 18:11:48,765 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:11:48,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 96 events. 2/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 89 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2023-08-29 18:11:48,770 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 97 transitions, 199 flow [2023-08-29 18:11:48,774 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 96 transitions, 195 flow [2023-08-29 18:11:48,777 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:11:48,785 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 96 transitions, 195 flow [2023-08-29 18:11:48,788 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 96 transitions, 195 flow [2023-08-29 18:11:48,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 96 transitions, 195 flow [2023-08-29 18:11:48,816 INFO L130 PetriNetUnfolder]: 2/96 cut-off events. [2023-08-29 18:11:48,816 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:11:48,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 96 events. 2/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 89 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2023-08-29 18:11:48,819 INFO L119 LiptonReduction]: Number of co-enabled transitions 1782 [2023-08-29 18:11:51,581 INFO L134 LiptonReduction]: Checked pairs total: 5750 [2023-08-29 18:11:51,581 INFO L136 LiptonReduction]: Total number of compositions: 74 [2023-08-29 18:11:51,594 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:11:51,602 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;@42d47006, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:11:51,602 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-08-29 18:11:51,606 INFO L130 PetriNetUnfolder]: 1/14 cut-off events. [2023-08-29 18:11:51,607 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:11:51,607 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:11:51,607 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:11:51,608 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-29 18:11:51,612 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:11:51,612 INFO L85 PathProgramCache]: Analyzing trace with hash 149381080, now seen corresponding path program 1 times [2023-08-29 18:11:51,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:11:51,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760185856] [2023-08-29 18:11:51,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:11:51,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:11:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:11:51,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:11:51,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:11:51,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760185856] [2023-08-29 18:11:51,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760185856] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:11:51,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:11:51,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:11:51,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719903705] [2023-08-29 18:11:51,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:11:51,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:11:51,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:11:51,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:11:51,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:11:51,927 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 171 [2023-08-29 18:11:51,930 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:51,930 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:11:51,930 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 171 [2023-08-29 18:11:51,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:11:52,020 INFO L130 PetriNetUnfolder]: 105/283 cut-off events. [2023-08-29 18:11:52,020 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:11:52,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 517 conditions, 283 events. 105/283 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1189 event pairs, 54 based on Foata normal form. 0/253 useless extension candidates. Maximal degree in co-relation 508. Up to 167 conditions per place. [2023-08-29 18:11:52,023 INFO L137 encePairwiseOnDemand]: 165/171 looper letters, 28 selfloop transitions, 4 changer transitions 2/40 dead transitions. [2023-08-29 18:11:52,023 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 40 transitions, 151 flow [2023-08-29 18:11:52,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:11:52,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:11:52,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2023-08-29 18:11:52,035 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2023-08-29 18:11:52,036 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2023-08-29 18:11:52,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2023-08-29 18:11:52,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:11:52,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2023-08-29 18:11:52,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,048 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,049 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 61 flow. Second operand 3 states and 304 transitions. [2023-08-29 18:11:52,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 40 transitions, 151 flow [2023-08-29 18:11:52,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 40 transitions, 150 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:11:52,053 INFO L231 Difference]: Finished difference. Result has 34 places, 31 transitions, 88 flow [2023-08-29 18:11:52,055 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=34, PETRI_TRANSITIONS=31} [2023-08-29 18:11:52,058 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 3 predicate places. [2023-08-29 18:11:52,058 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 31 transitions, 88 flow [2023-08-29 18:11:52,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,059 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:11:52,059 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:11:52,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 18:11:52,059 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-29 18:11:52,060 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:11:52,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1109685804, now seen corresponding path program 1 times [2023-08-29 18:11:52,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:11:52,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454559333] [2023-08-29 18:11:52,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:11:52,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:11:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:11:52,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:11:52,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:11:52,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454559333] [2023-08-29 18:11:52,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454559333] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:11:52,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:11:52,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:11:52,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170976173] [2023-08-29 18:11:52,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:11:52,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:11:52,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:11:52,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:11:52,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:11:52,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 171 [2023-08-29 18:11:52,119 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 31 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,119 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:11:52,119 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 171 [2023-08-29 18:11:52,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:11:52,184 INFO L130 PetriNetUnfolder]: 93/262 cut-off events. [2023-08-29 18:11:52,184 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2023-08-29 18:11:52,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 262 events. 93/262 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1077 event pairs, 65 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 529. Up to 186 conditions per place. [2023-08-29 18:11:52,187 INFO L137 encePairwiseOnDemand]: 167/171 looper letters, 28 selfloop transitions, 4 changer transitions 0/40 dead transitions. [2023-08-29 18:11:52,187 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 40 transitions, 174 flow [2023-08-29 18:11:52,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:11:52,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:11:52,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2023-08-29 18:11:52,189 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5692007797270955 [2023-08-29 18:11:52,189 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 292 transitions. [2023-08-29 18:11:52,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 292 transitions. [2023-08-29 18:11:52,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:11:52,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 292 transitions. [2023-08-29 18:11:52,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,192 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,193 INFO L175 Difference]: Start difference. First operand has 34 places, 31 transitions, 88 flow. Second operand 3 states and 292 transitions. [2023-08-29 18:11:52,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 40 transitions, 174 flow [2023-08-29 18:11:52,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 40 transitions, 164 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 18:11:52,195 INFO L231 Difference]: Finished difference. Result has 35 places, 33 transitions, 104 flow [2023-08-29 18:11:52,195 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=35, PETRI_TRANSITIONS=33} [2023-08-29 18:11:52,196 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2023-08-29 18:11:52,196 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 33 transitions, 104 flow [2023-08-29 18:11:52,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,197 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:11:52,197 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:11:52,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 18:11:52,197 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-29 18:11:52,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:11:52,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1427578858, now seen corresponding path program 1 times [2023-08-29 18:11:52,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:11:52,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398236817] [2023-08-29 18:11:52,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:11:52,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:11:52,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:11:52,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:11:52,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:11:52,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398236817] [2023-08-29 18:11:52,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398236817] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:11:52,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:11:52,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:11:52,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351240741] [2023-08-29 18:11:52,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:11:52,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:11:52,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:11:52,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:11:52,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:11:52,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 171 [2023-08-29 18:11:52,346 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 33 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,346 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:11:52,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 171 [2023-08-29 18:11:52,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:11:52,408 INFO L130 PetriNetUnfolder]: 96/277 cut-off events. [2023-08-29 18:11:52,408 INFO L131 PetriNetUnfolder]: For 46/51 co-relation queries the response was YES. [2023-08-29 18:11:52,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 603 conditions, 277 events. 96/277 cut-off events. For 46/51 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1265 event pairs, 29 based on Foata normal form. 2/252 useless extension candidates. Maximal degree in co-relation 592. Up to 152 conditions per place. [2023-08-29 18:11:52,411 INFO L137 encePairwiseOnDemand]: 163/171 looper letters, 29 selfloop transitions, 5 changer transitions 5/50 dead transitions. [2023-08-29 18:11:52,411 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 50 transitions, 223 flow [2023-08-29 18:11:52,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:11:52,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:11:52,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 293 transitions. [2023-08-29 18:11:52,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.571150097465887 [2023-08-29 18:11:52,413 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 293 transitions. [2023-08-29 18:11:52,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 293 transitions. [2023-08-29 18:11:52,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:11:52,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 293 transitions. [2023-08-29 18:11:52,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,417 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,417 INFO L175 Difference]: Start difference. First operand has 35 places, 33 transitions, 104 flow. Second operand 3 states and 293 transitions. [2023-08-29 18:11:52,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 50 transitions, 223 flow [2023-08-29 18:11:52,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 50 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:11:52,419 INFO L231 Difference]: Finished difference. Result has 37 places, 35 transitions, 129 flow [2023-08-29 18:11:52,419 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=37, PETRI_TRANSITIONS=35} [2023-08-29 18:11:52,420 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 6 predicate places. [2023-08-29 18:11:52,420 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 35 transitions, 129 flow [2023-08-29 18:11:52,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,421 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:11:52,421 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:11:52,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 18:11:52,421 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-29 18:11:52,422 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:11:52,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1152791960, now seen corresponding path program 2 times [2023-08-29 18:11:52,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:11:52,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246410666] [2023-08-29 18:11:52,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:11:52,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:11:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:11:52,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:11:52,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:11:52,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246410666] [2023-08-29 18:11:52,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246410666] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:11:52,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:11:52,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 18:11:52,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904390659] [2023-08-29 18:11:52,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:11:52,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 18:11:52,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:11:52,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 18:11:52,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-29 18:11:52,670 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 171 [2023-08-29 18:11:52,671 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 35 transitions, 129 flow. Second operand has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,671 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:11:52,671 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 171 [2023-08-29 18:11:52,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:11:52,744 INFO L130 PetriNetUnfolder]: 76/266 cut-off events. [2023-08-29 18:11:52,744 INFO L131 PetriNetUnfolder]: For 73/80 co-relation queries the response was YES. [2023-08-29 18:11:52,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 662 conditions, 266 events. 76/266 cut-off events. For 73/80 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1309 event pairs, 21 based on Foata normal form. 16/264 useless extension candidates. Maximal degree in co-relation 650. Up to 123 conditions per place. [2023-08-29 18:11:52,749 INFO L137 encePairwiseOnDemand]: 162/171 looper letters, 19 selfloop transitions, 9 changer transitions 5/43 dead transitions. [2023-08-29 18:11:52,750 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 43 transitions, 223 flow [2023-08-29 18:11:52,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 18:11:52,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 18:11:52,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 361 transitions. [2023-08-29 18:11:52,752 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2023-08-29 18:11:52,752 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 361 transitions. [2023-08-29 18:11:52,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 361 transitions. [2023-08-29 18:11:52,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:11:52,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 361 transitions. [2023-08-29 18:11:52,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,763 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,763 INFO L175 Difference]: Start difference. First operand has 37 places, 35 transitions, 129 flow. Second operand 4 states and 361 transitions. [2023-08-29 18:11:52,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 43 transitions, 223 flow [2023-08-29 18:11:52,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 43 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:11:52,767 INFO L231 Difference]: Finished difference. Result has 40 places, 33 transitions, 146 flow [2023-08-29 18:11:52,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=146, PETRI_PLACES=40, PETRI_TRANSITIONS=33} [2023-08-29 18:11:52,767 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 9 predicate places. [2023-08-29 18:11:52,768 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 33 transitions, 146 flow [2023-08-29 18:11:52,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,768 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:11:52,768 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:11:52,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 18:11:52,768 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-29 18:11:52,769 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:11:52,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1476649308, now seen corresponding path program 1 times [2023-08-29 18:11:52,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:11:52,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093842876] [2023-08-29 18:11:52,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:11:52,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:11:52,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:11:52,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:11:52,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:11:52,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093842876] [2023-08-29 18:11:52,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093842876] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:11:52,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:11:52,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:11:52,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065544621] [2023-08-29 18:11:52,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:11:52,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:11:52,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:11:52,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:11:52,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:11:52,892 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 171 [2023-08-29 18:11:52,893 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,893 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:11:52,893 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 171 [2023-08-29 18:11:52,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:11:52,938 INFO L130 PetriNetUnfolder]: 44/169 cut-off events. [2023-08-29 18:11:52,939 INFO L131 PetriNetUnfolder]: For 65/69 co-relation queries the response was YES. [2023-08-29 18:11:52,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 169 events. 44/169 cut-off events. For 65/69 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 743 event pairs, 13 based on Foata normal form. 7/161 useless extension candidates. Maximal degree in co-relation 461. Up to 85 conditions per place. [2023-08-29 18:11:52,941 INFO L137 encePairwiseOnDemand]: 164/171 looper letters, 19 selfloop transitions, 4 changer transitions 6/40 dead transitions. [2023-08-29 18:11:52,941 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 40 transitions, 231 flow [2023-08-29 18:11:52,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:11:52,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:11:52,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2023-08-29 18:11:52,942 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5536062378167641 [2023-08-29 18:11:52,942 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 284 transitions. [2023-08-29 18:11:52,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 284 transitions. [2023-08-29 18:11:52,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:11:52,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 284 transitions. [2023-08-29 18:11:52,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,946 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,946 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 146 flow. Second operand 3 states and 284 transitions. [2023-08-29 18:11:52,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 40 transitions, 231 flow [2023-08-29 18:11:52,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 40 transitions, 217 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 18:11:52,949 INFO L231 Difference]: Finished difference. Result has 39 places, 31 transitions, 140 flow [2023-08-29 18:11:52,949 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=39, PETRI_TRANSITIONS=31} [2023-08-29 18:11:52,952 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 8 predicate places. [2023-08-29 18:11:52,952 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 31 transitions, 140 flow [2023-08-29 18:11:52,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:52,952 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:11:52,952 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:11:52,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 18:11:52,953 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-29 18:11:52,953 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:11:52,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1446584324, now seen corresponding path program 2 times [2023-08-29 18:11:52,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:11:52,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4623584] [2023-08-29 18:11:52,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:11:52,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:11:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:11:53,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:11:53,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:11:53,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4623584] [2023-08-29 18:11:53,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4623584] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:11:53,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:11:53,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:11:53,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113453321] [2023-08-29 18:11:53,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:11:53,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:11:53,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:11:53,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:11:53,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:11:53,246 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 171 [2023-08-29 18:11:53,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 31 transitions, 140 flow. Second operand has 6 states, 6 states have (on average 82.5) internal successors, (495), 6 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:53,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:11:53,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 171 [2023-08-29 18:11:53,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:11:53,302 INFO L130 PetriNetUnfolder]: 13/80 cut-off events. [2023-08-29 18:11:53,303 INFO L131 PetriNetUnfolder]: For 64/64 co-relation queries the response was YES. [2023-08-29 18:11:53,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 80 events. 13/80 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 188 event pairs, 3 based on Foata normal form. 4/80 useless extension candidates. Maximal degree in co-relation 221. Up to 43 conditions per place. [2023-08-29 18:11:53,304 INFO L137 encePairwiseOnDemand]: 165/171 looper letters, 11 selfloop transitions, 4 changer transitions 12/30 dead transitions. [2023-08-29 18:11:53,304 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 30 transitions, 188 flow [2023-08-29 18:11:53,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 18:11:53,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 18:11:53,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 351 transitions. [2023-08-29 18:11:53,306 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5131578947368421 [2023-08-29 18:11:53,306 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 351 transitions. [2023-08-29 18:11:53,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 351 transitions. [2023-08-29 18:11:53,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:11:53,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 351 transitions. [2023-08-29 18:11:53,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:53,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:53,310 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:53,310 INFO L175 Difference]: Start difference. First operand has 39 places, 31 transitions, 140 flow. Second operand 4 states and 351 transitions. [2023-08-29 18:11:53,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 30 transitions, 188 flow [2023-08-29 18:11:53,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 30 transitions, 160 flow, removed 5 selfloop flow, removed 6 redundant places. [2023-08-29 18:11:53,313 INFO L231 Difference]: Finished difference. Result has 34 places, 16 transitions, 55 flow [2023-08-29 18:11:53,313 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=55, PETRI_PLACES=34, PETRI_TRANSITIONS=16} [2023-08-29 18:11:53,315 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 3 predicate places. [2023-08-29 18:11:53,315 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 16 transitions, 55 flow [2023-08-29 18:11:53,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.5) internal successors, (495), 6 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:53,316 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:11:53,316 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:11:53,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 18:11:53,320 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-29 18:11:53,321 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:11:53,321 INFO L85 PathProgramCache]: Analyzing trace with hash 464056063, now seen corresponding path program 1 times [2023-08-29 18:11:53,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:11:53,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134138763] [2023-08-29 18:11:53,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:11:53,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:11:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:11:53,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:11:53,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:11:53,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134138763] [2023-08-29 18:11:53,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134138763] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:11:53,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:11:53,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:11:53,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84889642] [2023-08-29 18:11:53,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:11:53,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:11:53,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:11:53,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:11:53,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:11:53,384 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 171 [2023-08-29 18:11:53,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 16 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:53,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:11:53,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 171 [2023-08-29 18:11:53,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:11:53,402 INFO L130 PetriNetUnfolder]: 7/31 cut-off events. [2023-08-29 18:11:53,402 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2023-08-29 18:11:53,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 31 events. 7/31 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 3 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 63. Up to 20 conditions per place. [2023-08-29 18:11:53,403 INFO L137 encePairwiseOnDemand]: 169/171 looper letters, 0 selfloop transitions, 0 changer transitions 17/17 dead transitions. [2023-08-29 18:11:53,403 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 17 transitions, 89 flow [2023-08-29 18:11:53,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:11:53,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:11:53,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 277 transitions. [2023-08-29 18:11:53,404 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5399610136452242 [2023-08-29 18:11:53,405 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 277 transitions. [2023-08-29 18:11:53,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 277 transitions. [2023-08-29 18:11:53,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:11:53,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 277 transitions. [2023-08-29 18:11:53,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:53,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:53,408 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:53,409 INFO L175 Difference]: Start difference. First operand has 34 places, 16 transitions, 55 flow. Second operand 3 states and 277 transitions. [2023-08-29 18:11:53,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 17 transitions, 89 flow [2023-08-29 18:11:53,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 74 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:11:53,409 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2023-08-29 18:11:53,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2023-08-29 18:11:53,410 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -9 predicate places. [2023-08-29 18:11:53,410 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2023-08-29 18:11:53,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:11:53,416 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2023-08-29 18:11:53,416 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 6 remaining) [2023-08-29 18:11:53,416 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2023-08-29 18:11:53,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2023-08-29 18:11:53,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2023-08-29 18:11:53,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2023-08-29 18:11:53,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 18:11:53,417 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2023-08-29 18:11:53,426 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 18:11:53,426 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 18:11:53,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:11:53 BasicIcfg [2023-08-29 18:11:53,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 18:11:53,430 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 18:11:53,430 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 18:11:53,430 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 18:11:53,430 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:11:48" (3/4) ... [2023-08-29 18:11:53,432 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 18:11:53,437 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 18:11:53,439 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-08-29 18:11:53,440 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 18:11:53,440 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 18:11:53,440 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 18:11:53,464 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 18:11:53,465 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 18:11:53,465 INFO L158 Benchmark]: Toolchain (without parser) took 5819.36ms. Allocated memory was 77.6MB in the beginning and 117.4MB in the end (delta: 39.8MB). Free memory was 53.8MB in the beginning and 78.1MB in the end (delta: -24.3MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2023-08-29 18:11:53,466 INFO L158 Benchmark]: CDTParser took 0.85ms. Allocated memory is still 77.6MB. Free memory was 54.7MB in the beginning and 54.6MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 18:11:53,466 INFO L158 Benchmark]: CACSL2BoogieTranslator took 434.86ms. Allocated memory was 77.6MB in the beginning and 96.5MB in the end (delta: 18.9MB). Free memory was 53.6MB in the beginning and 73.6MB in the end (delta: -20.0MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2023-08-29 18:11:53,466 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.77ms. Allocated memory is still 96.5MB. Free memory was 73.6MB in the beginning and 71.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 18:11:53,467 INFO L158 Benchmark]: Boogie Preprocessor took 25.06ms. Allocated memory is still 96.5MB. Free memory was 71.6MB in the beginning and 70.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:11:53,467 INFO L158 Benchmark]: RCFGBuilder took 402.80ms. Allocated memory is still 96.5MB. Free memory was 69.9MB in the beginning and 55.5MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-29 18:11:53,467 INFO L158 Benchmark]: TraceAbstraction took 4863.33ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 55.1MB in the beginning and 81.3MB in the end (delta: -26.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 18:11:53,467 INFO L158 Benchmark]: Witness Printer took 35.12ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 78.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:11:53,469 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85ms. Allocated memory is still 77.6MB. Free memory was 54.7MB in the beginning and 54.6MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 434.86ms. Allocated memory was 77.6MB in the beginning and 96.5MB in the end (delta: 18.9MB). Free memory was 53.6MB in the beginning and 73.6MB in the end (delta: -20.0MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.77ms. Allocated memory is still 96.5MB. Free memory was 73.6MB in the beginning and 71.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.06ms. Allocated memory is still 96.5MB. Free memory was 71.6MB in the beginning and 70.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 402.80ms. Allocated memory is still 96.5MB. Free memory was 69.9MB in the beginning and 55.5MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4863.33ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 55.1MB in the beginning and 81.3MB in the end (delta: -26.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 35.12ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 78.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 98 PlacesBefore, 31 PlacesAfterwards, 96 TransitionsBefore, 29 TransitionsAfterwards, 1782 CoEnabledTransitionPairs, 7 FixpointIterations, 34 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 74 TotalNumberOfCompositions, 5750 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2236, independent: 1919, independent conditional: 0, independent unconditional: 1919, dependent: 317, dependent conditional: 0, dependent unconditional: 317, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 927, independent: 888, independent conditional: 0, independent unconditional: 888, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2236, independent: 1031, independent conditional: 0, independent unconditional: 1031, dependent: 278, dependent conditional: 0, dependent unconditional: 278, unknown: 927, unknown conditional: 0, unknown unconditional: 927] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 65, Positive conditional cache size: 0, Positive unconditional cache size: 65, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 690]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 125 locations, 6 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: 4.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 372 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 212 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 96 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 577 IncrementalHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 96 mSolverCounterUnsat, 3 mSDtfsCounter, 577 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=146occurred in iteration=4, InterpolantAutomatonStates: 23, 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, 0.7s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 226 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 18:11:53,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE