./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_10-equ_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511c19db-0685-4b63-9c60-e8932f46946d/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511c19db-0685-4b63-9c60-e8932f46946d/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511c19db-0685-4b63-9c60-e8932f46946d/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511c19db-0685-4b63-9c60-e8932f46946d/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_10-equ_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511c19db-0685-4b63-9c60-e8932f46946d/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511c19db-0685-4b63-9c60-e8932f46946d/bin/uautomizer-DrprNOufMa --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 fd55bbfa1518dd7815f07d7de8c2030374bbc7b7998290c12df563b95f65f709 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:16:50,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:16:50,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:16:51,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:16:51,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:16:51,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:16:51,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:16:51,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:16:51,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:16:51,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:16:51,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:16:51,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:16:51,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:16:51,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:16:51,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:16:51,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:16:51,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:16:51,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:16:51,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:16:51,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:16:51,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:16:51,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:16:51,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:16:51,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:16:51,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:16:51,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:16:51,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:16:51,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:16:51,040 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:16:51,041 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:16:51,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:16:51,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:16:51,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:16:51,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:16:51,044 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:16:51,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:16:51,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:16:51,045 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:16:51,045 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:16:51,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:16:51,046 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:16:51,047 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511c19db-0685-4b63-9c60-e8932f46946d/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-12-06 22:16:51,069 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:16:51,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:16:51,070 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:16:51,070 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:16:51,070 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 22:16:51,071 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 22:16:51,071 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:16:51,071 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:16:51,071 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:16:51,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:16:51,071 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 22:16:51,072 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 22:16:51,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:16:51,072 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 22:16:51,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:16:51,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 22:16:51,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 22:16:51,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 22:16:51,073 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-12-06 22:16:51,073 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 22:16:51,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:16:51,073 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:16:51,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 22:16:51,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:16:51,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:16:51,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 22:16:51,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:16:51,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:16:51,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 22:16:51,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 22:16:51,074 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:16:51,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 22:16:51,075 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 22:16:51,075 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 22:16:51,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 22:16:51,075 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:16:51,075 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511c19db-0685-4b63-9c60-e8932f46946d/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511c19db-0685-4b63-9c60-e8932f46946d/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd55bbfa1518dd7815f07d7de8c2030374bbc7b7998290c12df563b95f65f709 [2021-12-06 22:16:51,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:16:51,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:16:51,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:16:51,288 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:16:51,289 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:16:51,290 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511c19db-0685-4b63-9c60-e8932f46946d/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/goblint-regression/06-symbeq_10-equ_rc.i [2021-12-06 22:16:51,338 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511c19db-0685-4b63-9c60-e8932f46946d/bin/uautomizer-DrprNOufMa/data/7ac698d49/34c5513cac504bef9d094484274bb439/FLAG293cf3b51 [2021-12-06 22:16:51,832 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:16:51,832 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511c19db-0685-4b63-9c60-e8932f46946d/sv-benchmarks/c/goblint-regression/06-symbeq_10-equ_rc.i [2021-12-06 22:16:51,848 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511c19db-0685-4b63-9c60-e8932f46946d/bin/uautomizer-DrprNOufMa/data/7ac698d49/34c5513cac504bef9d094484274bb439/FLAG293cf3b51 [2021-12-06 22:16:52,315 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511c19db-0685-4b63-9c60-e8932f46946d/bin/uautomizer-DrprNOufMa/data/7ac698d49/34c5513cac504bef9d094484274bb439 [2021-12-06 22:16:52,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:16:52,318 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:16:52,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:16:52,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:16:52,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:16:52,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:16:52" (1/1) ... [2021-12-06 22:16:52,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3460632b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:52, skipping insertion in model container [2021-12-06 22:16:52,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:16:52" (1/1) ... [2021-12-06 22:16:52,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:16:52,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:16:52,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:16:52,625 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:16:52,656 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:16:52,695 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:16:52,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:52 WrapperNode [2021-12-06 22:16:52,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:16:52,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:16:52,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:16:52,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:16:52,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:52" (1/1) ... [2021-12-06 22:16:52,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:52" (1/1) ... [2021-12-06 22:16:52,737 INFO L137 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 68 [2021-12-06 22:16:52,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:16:52,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:16:52,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:16:52,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:16:52,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:52" (1/1) ... [2021-12-06 22:16:52,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:52" (1/1) ... [2021-12-06 22:16:52,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:52" (1/1) ... [2021-12-06 22:16:52,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:52" (1/1) ... [2021-12-06 22:16:52,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:52" (1/1) ... [2021-12-06 22:16:52,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:52" (1/1) ... [2021-12-06 22:16:52,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:52" (1/1) ... [2021-12-06 22:16:52,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:16:52,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:16:52,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:16:52,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:16:52,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:52" (1/1) ... [2021-12-06 22:16:52,766 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:16:52,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511c19db-0685-4b63-9c60-e8932f46946d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:16:52,784 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511c19db-0685-4b63-9c60-e8932f46946d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 22:16:52,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511c19db-0685-4b63-9c60-e8932f46946d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 22:16:52,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 22:16:52,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 22:16:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 22:16:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-06 22:16:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:16:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-06 22:16:52,816 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-06 22:16:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 22:16:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:16:52,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:16:52,818 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-06 22:16:52,909 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:16:52,911 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:16:53,079 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:16:53,085 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:16:53,085 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 22:16:53,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:16:53 BoogieIcfgContainer [2021-12-06 22:16:53,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:16:53,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 22:16:53,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 22:16:53,091 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 22:16:53,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 10:16:52" (1/3) ... [2021-12-06 22:16:53,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd05d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:16:53, skipping insertion in model container [2021-12-06 22:16:53,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:52" (2/3) ... [2021-12-06 22:16:53,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd05d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:16:53, skipping insertion in model container [2021-12-06 22:16:53,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:16:53" (3/3) ... [2021-12-06 22:16:53,093 INFO L111 eAbstractionObserver]: Analyzing ICFG 06-symbeq_10-equ_rc.i [2021-12-06 22:16:53,096 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-06 22:16:53,097 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 22:16:53,097 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-06 22:16:53,097 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-06 22:16:53,116 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,117 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,117 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,117 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,117 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,117 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,117 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,117 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,117 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,118 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,118 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,118 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,118 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,118 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,118 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,119 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,119 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,119 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,119 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,119 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,119 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,119 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,120 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,120 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,120 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,120 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,120 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,121 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,121 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,121 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,121 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,121 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,124 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,124 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,124 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,124 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,124 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,124 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:16:53,127 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-06 22:16:53,163 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:16:53,168 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 22:16:53,169 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-06 22:16:53,178 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 89 transitions, 183 flow [2021-12-06 22:16:53,212 INFO L129 PetriNetUnfolder]: 1/88 cut-off events. [2021-12-06 22:16:53,212 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 22:16:53,214 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 88 events. 1/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2021-12-06 22:16:53,214 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 89 transitions, 183 flow [2021-12-06 22:16:53,218 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 88 transitions, 179 flow [2021-12-06 22:16:53,233 INFO L129 PetriNetUnfolder]: 1/71 cut-off events. [2021-12-06 22:16:53,233 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 22:16:53,233 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:16:53,234 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:16:53,234 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-12-06 22:16:53,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:16:53,239 INFO L85 PathProgramCache]: Analyzing trace with hash -885215168, now seen corresponding path program 1 times [2021-12-06 22:16:53,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:16:53,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469618142] [2021-12-06 22:16:53,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:16:53,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:16:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:53,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:16:53,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:16:53,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469618142] [2021-12-06 22:16:53,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469618142] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:16:53,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:16:53,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:16:53,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082353790] [2021-12-06 22:16:53,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:16:53,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:16:53,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:16:53,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:16:53,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:16:53,575 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 89 [2021-12-06 22:16:53,578 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 88 transitions, 179 flow. Second operand has 6 states, 6 states have (on average 65.16666666666667) internal successors, (391), 6 states have internal predecessors, (391), 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) [2021-12-06 22:16:53,578 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:16:53,578 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 89 [2021-12-06 22:16:53,579 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:16:53,760 INFO L129 PetriNetUnfolder]: 79/316 cut-off events. [2021-12-06 22:16:53,760 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 22:16:53,762 INFO L84 FinitePrefix]: Finished finitePrefix Result has 509 conditions, 316 events. 79/316 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1220 event pairs, 20 based on Foata normal form. 0/292 useless extension candidates. Maximal degree in co-relation 439. Up to 138 conditions per place. [2021-12-06 22:16:53,764 INFO L132 encePairwiseOnDemand]: 78/89 looper letters, 30 selfloop transitions, 22 changer transitions 4/117 dead transitions. [2021-12-06 22:16:53,764 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 117 transitions, 349 flow [2021-12-06 22:16:53,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 22:16:53,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 22:16:53,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 429 transitions. [2021-12-06 22:16:53,776 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8033707865168539 [2021-12-06 22:16:53,777 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 429 transitions. [2021-12-06 22:16:53,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 429 transitions. [2021-12-06 22:16:53,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:16:53,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 429 transitions. [2021-12-06 22:16:53,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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) [2021-12-06 22:16:53,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 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) [2021-12-06 22:16:53,789 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 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) [2021-12-06 22:16:53,791 INFO L186 Difference]: Start difference. First operand has 91 places, 88 transitions, 179 flow. Second operand 6 states and 429 transitions. [2021-12-06 22:16:53,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 117 transitions, 349 flow [2021-12-06 22:16:53,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 117 transitions, 348 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 22:16:53,797 INFO L242 Difference]: Finished difference. Result has 100 places, 109 transitions, 328 flow [2021-12-06 22:16:53,799 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=328, PETRI_PLACES=100, PETRI_TRANSITIONS=109} [2021-12-06 22:16:53,802 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 9 predicate places. [2021-12-06 22:16:53,802 INFO L470 AbstractCegarLoop]: Abstraction has has 100 places, 109 transitions, 328 flow [2021-12-06 22:16:53,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.16666666666667) internal successors, (391), 6 states have internal predecessors, (391), 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) [2021-12-06 22:16:53,803 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:16:53,803 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:16:53,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 22:16:53,803 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-12-06 22:16:53,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:16:53,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1424353823, now seen corresponding path program 1 times [2021-12-06 22:16:53,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:16:53,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977941525] [2021-12-06 22:16:53,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:16:53,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:16:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:53,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:16:53,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:16:53,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977941525] [2021-12-06 22:16:53,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977941525] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:16:53,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:16:53,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:16:53,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175137036] [2021-12-06 22:16:53,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:16:53,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:16:53,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:16:53,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:16:53,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:16:53,929 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 89 [2021-12-06 22:16:53,929 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 109 transitions, 328 flow. Second operand has 6 states, 6 states have (on average 71.83333333333333) internal successors, (431), 6 states have internal predecessors, (431), 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) [2021-12-06 22:16:53,930 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:16:53,930 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 89 [2021-12-06 22:16:53,930 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:16:54,091 INFO L129 PetriNetUnfolder]: 114/404 cut-off events. [2021-12-06 22:16:54,091 INFO L130 PetriNetUnfolder]: For 118/118 co-relation queries the response was YES. [2021-12-06 22:16:54,093 INFO L84 FinitePrefix]: Finished finitePrefix Result has 949 conditions, 404 events. 114/404 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1768 event pairs, 17 based on Foata normal form. 0/391 useless extension candidates. Maximal degree in co-relation 883. Up to 184 conditions per place. [2021-12-06 22:16:54,095 INFO L132 encePairwiseOnDemand]: 78/89 looper letters, 38 selfloop transitions, 26 changer transitions 11/145 dead transitions. [2021-12-06 22:16:54,096 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 145 transitions, 646 flow [2021-12-06 22:16:54,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 22:16:54,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 22:16:54,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 469 transitions. [2021-12-06 22:16:54,098 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8782771535580525 [2021-12-06 22:16:54,098 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 469 transitions. [2021-12-06 22:16:54,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 469 transitions. [2021-12-06 22:16:54,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:16:54,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 469 transitions. [2021-12-06 22:16:54,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.16666666666667) internal successors, (469), 6 states have internal predecessors, (469), 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) [2021-12-06 22:16:54,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 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) [2021-12-06 22:16:54,103 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 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) [2021-12-06 22:16:54,103 INFO L186 Difference]: Start difference. First operand has 100 places, 109 transitions, 328 flow. Second operand 6 states and 469 transitions. [2021-12-06 22:16:54,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 145 transitions, 646 flow [2021-12-06 22:16:54,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 145 transitions, 646 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 22:16:54,111 INFO L242 Difference]: Finished difference. Result has 110 places, 130 transitions, 552 flow [2021-12-06 22:16:54,112 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=552, PETRI_PLACES=110, PETRI_TRANSITIONS=130} [2021-12-06 22:16:54,112 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 19 predicate places. [2021-12-06 22:16:54,113 INFO L470 AbstractCegarLoop]: Abstraction has has 110 places, 130 transitions, 552 flow [2021-12-06 22:16:54,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.83333333333333) internal successors, (431), 6 states have internal predecessors, (431), 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) [2021-12-06 22:16:54,113 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:16:54,114 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:16:54,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 22:16:54,114 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-12-06 22:16:54,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:16:54,115 INFO L85 PathProgramCache]: Analyzing trace with hash 741734705, now seen corresponding path program 1 times [2021-12-06 22:16:54,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:16:54,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038535893] [2021-12-06 22:16:54,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:16:54,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:16:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:54,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:16:54,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:16:54,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038535893] [2021-12-06 22:16:54,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038535893] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:16:54,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:16:54,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 22:16:54,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937226056] [2021-12-06 22:16:54,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:16:54,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 22:16:54,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:16:54,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 22:16:54,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-12-06 22:16:54,330 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2021-12-06 22:16:54,331 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 130 transitions, 552 flow. Second operand has 11 states, 11 states have (on average 46.36363636363637) internal successors, (510), 11 states have internal predecessors, (510), 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) [2021-12-06 22:16:54,331 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:16:54,331 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2021-12-06 22:16:54,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:16:54,732 INFO L129 PetriNetUnfolder]: 260/866 cut-off events. [2021-12-06 22:16:54,732 INFO L130 PetriNetUnfolder]: For 615/615 co-relation queries the response was YES. [2021-12-06 22:16:54,740 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2623 conditions, 866 events. 260/866 cut-off events. For 615/615 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 5433 event pairs, 68 based on Foata normal form. 11/874 useless extension candidates. Maximal degree in co-relation 1564. Up to 286 conditions per place. [2021-12-06 22:16:54,744 INFO L132 encePairwiseOnDemand]: 74/89 looper letters, 141 selfloop transitions, 35 changer transitions 19/238 dead transitions. [2021-12-06 22:16:54,744 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 238 transitions, 1624 flow [2021-12-06 22:16:54,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 22:16:54,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 22:16:54,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 576 transitions. [2021-12-06 22:16:54,746 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5883554647599591 [2021-12-06 22:16:54,747 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 576 transitions. [2021-12-06 22:16:54,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 576 transitions. [2021-12-06 22:16:54,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:16:54,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 576 transitions. [2021-12-06 22:16:54,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 52.36363636363637) internal successors, (576), 11 states have internal predecessors, (576), 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) [2021-12-06 22:16:54,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 89.0) internal successors, (1068), 12 states have internal predecessors, (1068), 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) [2021-12-06 22:16:54,752 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 89.0) internal successors, (1068), 12 states have internal predecessors, (1068), 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) [2021-12-06 22:16:54,752 INFO L186 Difference]: Start difference. First operand has 110 places, 130 transitions, 552 flow. Second operand 11 states and 576 transitions. [2021-12-06 22:16:54,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 238 transitions, 1624 flow [2021-12-06 22:16:54,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 238 transitions, 1588 flow, removed 18 selfloop flow, removed 0 redundant places. [2021-12-06 22:16:54,766 INFO L242 Difference]: Finished difference. Result has 128 places, 161 transitions, 949 flow [2021-12-06 22:16:54,766 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=949, PETRI_PLACES=128, PETRI_TRANSITIONS=161} [2021-12-06 22:16:54,767 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 37 predicate places. [2021-12-06 22:16:54,767 INFO L470 AbstractCegarLoop]: Abstraction has has 128 places, 161 transitions, 949 flow [2021-12-06 22:16:54,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 46.36363636363637) internal successors, (510), 11 states have internal predecessors, (510), 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) [2021-12-06 22:16:54,767 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:16:54,768 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:16:54,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 22:16:54,768 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-12-06 22:16:54,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:16:54,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1865510404, now seen corresponding path program 1 times [2021-12-06 22:16:54,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:16:54,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378117015] [2021-12-06 22:16:54,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:16:54,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:16:54,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:54,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:16:54,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:16:54,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378117015] [2021-12-06 22:16:54,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378117015] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:16:54,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:16:54,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 22:16:54,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953532716] [2021-12-06 22:16:54,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:16:54,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 22:16:54,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:16:54,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 22:16:54,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-12-06 22:16:54,926 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2021-12-06 22:16:54,926 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 161 transitions, 949 flow. Second operand has 11 states, 11 states have (on average 46.36363636363637) internal successors, (510), 11 states have internal predecessors, (510), 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) [2021-12-06 22:16:54,926 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:16:54,926 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2021-12-06 22:16:54,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:16:55,293 INFO L129 PetriNetUnfolder]: 251/835 cut-off events. [2021-12-06 22:16:55,294 INFO L130 PetriNetUnfolder]: For 1089/1089 co-relation queries the response was YES. [2021-12-06 22:16:55,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2899 conditions, 835 events. 251/835 cut-off events. For 1089/1089 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5065 event pairs, 63 based on Foata normal form. 11/843 useless extension candidates. Maximal degree in co-relation 2156. Up to 285 conditions per place. [2021-12-06 22:16:55,300 INFO L132 encePairwiseOnDemand]: 74/89 looper letters, 85 selfloop transitions, 8 changer transitions 116/248 dead transitions. [2021-12-06 22:16:55,300 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 248 transitions, 1973 flow [2021-12-06 22:16:55,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 22:16:55,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 22:16:55,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 581 transitions. [2021-12-06 22:16:55,302 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5934627170582226 [2021-12-06 22:16:55,302 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 581 transitions. [2021-12-06 22:16:55,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 581 transitions. [2021-12-06 22:16:55,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:16:55,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 581 transitions. [2021-12-06 22:16:55,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 52.81818181818182) internal successors, (581), 11 states have internal predecessors, (581), 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) [2021-12-06 22:16:55,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 89.0) internal successors, (1068), 12 states have internal predecessors, (1068), 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) [2021-12-06 22:16:55,306 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 89.0) internal successors, (1068), 12 states have internal predecessors, (1068), 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) [2021-12-06 22:16:55,306 INFO L186 Difference]: Start difference. First operand has 128 places, 161 transitions, 949 flow. Second operand 11 states and 581 transitions. [2021-12-06 22:16:55,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 248 transitions, 1973 flow [2021-12-06 22:16:55,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 248 transitions, 1970 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 22:16:55,320 INFO L242 Difference]: Finished difference. Result has 142 places, 131 transitions, 744 flow [2021-12-06 22:16:55,320 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=946, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=744, PETRI_PLACES=142, PETRI_TRANSITIONS=131} [2021-12-06 22:16:55,321 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 51 predicate places. [2021-12-06 22:16:55,321 INFO L470 AbstractCegarLoop]: Abstraction has has 142 places, 131 transitions, 744 flow [2021-12-06 22:16:55,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 46.36363636363637) internal successors, (510), 11 states have internal predecessors, (510), 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) [2021-12-06 22:16:55,321 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:16:55,322 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:16:55,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 22:16:55,322 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-12-06 22:16:55,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:16:55,323 INFO L85 PathProgramCache]: Analyzing trace with hash 2121394182, now seen corresponding path program 1 times [2021-12-06 22:16:55,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:16:55,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312587326] [2021-12-06 22:16:55,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:16:55,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:16:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:16:55,351 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:16:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:16:55,398 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:16:55,398 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 22:16:55,399 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2021-12-06 22:16:55,401 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 4 remaining) [2021-12-06 22:16:55,401 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 4 remaining) [2021-12-06 22:16:55,402 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2021-12-06 22:16:55,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 22:16:55,406 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-12-06 22:16:55,411 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-06 22:16:55,411 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 22:16:55,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 10:16:55 BasicIcfg [2021-12-06 22:16:55,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 22:16:55,457 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 22:16:55,457 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 22:16:55,457 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 22:16:55,457 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:16:53" (3/4) ... [2021-12-06 22:16:55,460 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 22:16:55,460 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 22:16:55,461 INFO L158 Benchmark]: Toolchain (without parser) took 3142.62ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 53.8MB in the beginning and 76.9MB in the end (delta: -23.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:16:55,461 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 92.3MB. Free memory was 72.2MB in the beginning and 72.1MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:16:55,462 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.20ms. Allocated memory is still 92.3MB. Free memory was 53.7MB in the beginning and 51.5MB in the end (delta: 2.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-06 22:16:55,462 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.92ms. Allocated memory is still 92.3MB. Free memory was 51.5MB in the beginning and 49.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 22:16:55,463 INFO L158 Benchmark]: Boogie Preprocessor took 20.62ms. Allocated memory is still 92.3MB. Free memory was 49.0MB in the beginning and 47.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 22:16:55,463 INFO L158 Benchmark]: RCFGBuilder took 327.17ms. Allocated memory is still 92.3MB. Free memory was 47.2MB in the beginning and 65.6MB in the end (delta: -18.3MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2021-12-06 22:16:55,464 INFO L158 Benchmark]: TraceAbstraction took 2368.22ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 65.3MB in the beginning and 76.9MB in the end (delta: -11.6MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. [2021-12-06 22:16:55,464 INFO L158 Benchmark]: Witness Printer took 3.30ms. Allocated memory is still 111.1MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:16:55,467 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 92.3MB. Free memory was 72.2MB in the beginning and 72.1MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.20ms. Allocated memory is still 92.3MB. Free memory was 53.7MB in the beginning and 51.5MB in the end (delta: 2.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.92ms. Allocated memory is still 92.3MB. Free memory was 51.5MB in the beginning and 49.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.62ms. Allocated memory is still 92.3MB. Free memory was 49.0MB in the beginning and 47.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 327.17ms. Allocated memory is still 92.3MB. Free memory was 47.2MB in the beginning and 65.6MB in the end (delta: -18.3MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2368.22ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 65.3MB in the beginning and 76.9MB in the end (delta: -11.6MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. * Witness Printer took 3.30ms. Allocated memory is still 111.1MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 996]: Data race detected Data race detected The following path leads to a data race: [L989-L993] 0 struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; VAL [A={1:0}, B={2:0}] [L1003] 0 int x = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, A={1:0}, B={2:0}, x=0] [L1004] 0 pthread_t id; VAL [A={1:0}, B={2:0}, id={6:0}, x=0] [L1005] 0 struct s *s; VAL [A={1:0}, B={2:0}, id={6:0}, x=0] [L1006] 0 int *d; VAL [A={1:0}, B={2:0}, id={6:0}, x=0] [L1007] 0 pthread_mutex_t *m; VAL [A={1:0}, B={2:0}, id={6:0}, x=0] [L1008] COND FALSE 0 !(\read(x)) VAL [A={1:0}, B={2:0}, id={6:0}, x=0] [L1012] 0 s = &B VAL [A={1:0}, B={2:0}, id={6:0}, s={2:0}, x=0] [L1013] 0 x++ VAL [A={1:0}, B={2:0}, id={6:0}, s={2:0}, x=1] [L1015] 0 m = &s->mutex VAL [A={1:0}, B={2:0}, id={6:0}, m={2:12}, s={2:0}, x=1] [L1016] 0 d = &s->datum VAL [A={1:0}, B={2:0}, d={2:0}, id={6:0}, m={2:12}, s={2:0}, x=1] [L1017] FCALL, FORK 0 pthread_create(&id,((void *)0),t_fun,((void *)0)) VAL [A={1:0}, arg={0:0}, B={2:0}, d={2:0}, id={6:0}, m={2:12}, pthread_create(&id,((void *)0),t_fun,((void *)0))=-1, s={2:0}, x=1] [L1019] 0 *d = 8 VAL [A={1:0}, arg={0:0}, B={2:0}, d={2:0}, id={6:0}, m={2:12}, s={2:0}, x=1] [L996] 1 B.datum = 5 VAL [A={1:0}, arg={0:0}, arg={0:0}, B={2:0}, B.datum = 5=38] [L996] 1 B.datum = 5 VAL [A={1:0}, arg={0:0}, arg={0:0}, B={2:0}, B.datum = 5=38] [L1019] 0 *d = 8 VAL [*d = 8=37, A={1:0}, arg={0:0}, arg={0:0}, B={2:0}, B.datum = 5=38, d={2:0}, id={6:0}, m={2:12}, s={2:0}, x=1] [L996] 1 B.datum = 5 VAL [A={1:0}, arg={0:0}, arg={0:0}, B={2:0}, B.datum = 5=38] Now there is a data race (on the heap) between C: *d = 8 [1019] and C: B.datum = 5 [996] - UnprovableResult [Line: 1019]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1017]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 106 locations, 4 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: 2.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 286 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 286 mSDsluCounter, 88 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 47 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 956 IncrementalHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 50 mSDtfsCounter, 956 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=949occurred in iteration=3, InterpolantAutomatonStates: 34, 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, 0.6s InterpolantComputationTime, 312 NumberOfCodeBlocks, 312 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 243 ConstructedInterpolants, 0 QuantifiedInterpolants, 1107 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-06 22:16:55,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511c19db-0685-4b63-9c60-e8932f46946d/bin/uautomizer-DrprNOufMa/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE