./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/lazy01.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebfd85c-1f96-4e15-a341-01cd094b0161/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebfd85c-1f96-4e15-a341-01cd094b0161/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebfd85c-1f96-4e15-a341-01cd094b0161/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebfd85c-1f96-4e15-a341-01cd094b0161/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/lazy01.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebfd85c-1f96-4e15-a341-01cd094b0161/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebfd85c-1f96-4e15-a341-01cd094b0161/bin/uautomizer-ug76WZFUDN --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 b5d87933b05ad3566f9bc28daac5c0aeceb8a45433a1cac3d51a8d34f7f284f0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:45:22,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:45:22,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:45:22,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:45:22,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:45:22,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:45:22,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:45:22,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:45:22,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:45:22,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:45:22,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:45:22,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:45:22,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:45:22,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:45:22,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:45:22,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:45:22,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:45:22,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:45:22,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:45:22,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:45:22,304 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:45:22,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:45:22,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:45:22,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:45:22,320 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:45:22,322 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:45:22,322 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:45:22,324 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:45:22,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:45:22,328 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:45:22,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:45:22,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:45:22,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:45:22,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:45:22,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:45:22,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:45:22,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:45:22,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:45:22,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:45:22,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:45:22,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:45:22,341 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebfd85c-1f96-4e15-a341-01cd094b0161/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 10:45:22,384 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:45:22,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:45:22,385 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:45:22,385 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:45:22,386 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:45:22,387 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:45:22,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:45:22,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:45:22,388 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:45:22,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:45:22,390 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:45:22,390 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:45:22,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:45:22,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:45:22,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:45:22,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:45:22,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:45:22,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:45:22,392 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 10:45:22,392 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:45:22,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:45:22,393 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:45:22,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:45:22,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:45:22,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:45:22,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:45:22,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:45:22,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:45:22,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:45:22,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:45:22,395 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:45:22,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:45:22,396 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:45:22,396 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:45:22,396 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:45:22,397 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_6ebfd85c-1f96-4e15-a341-01cd094b0161/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebfd85c-1f96-4e15-a341-01cd094b0161/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5d87933b05ad3566f9bc28daac5c0aeceb8a45433a1cac3d51a8d34f7f284f0 [2022-11-20 10:45:22,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:45:22,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:45:22,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:45:22,773 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:45:22,773 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:45:22,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebfd85c-1f96-4e15-a341-01cd094b0161/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread/lazy01.i [2022-11-20 10:45:25,737 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:45:26,003 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:45:26,004 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebfd85c-1f96-4e15-a341-01cd094b0161/sv-benchmarks/c/pthread/lazy01.i [2022-11-20 10:45:26,018 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebfd85c-1f96-4e15-a341-01cd094b0161/bin/uautomizer-ug76WZFUDN/data/481adb7b2/41c617574e7441379e12badae0dec153/FLAGfcaf6df2c [2022-11-20 10:45:26,033 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebfd85c-1f96-4e15-a341-01cd094b0161/bin/uautomizer-ug76WZFUDN/data/481adb7b2/41c617574e7441379e12badae0dec153 [2022-11-20 10:45:26,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:45:26,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:45:26,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:45:26,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:45:26,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:45:26,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:45:26" (1/1) ... [2022-11-20 10:45:26,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fb7ce2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:26, skipping insertion in model container [2022-11-20 10:45:26,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:45:26" (1/1) ... [2022-11-20 10:45:26,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:45:26,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:45:26,543 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebfd85c-1f96-4e15-a341-01cd094b0161/sv-benchmarks/c/pthread/lazy01.i[31042,31055] [2022-11-20 10:45:26,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:45:26,576 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:45:26,635 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebfd85c-1f96-4e15-a341-01cd094b0161/sv-benchmarks/c/pthread/lazy01.i[31042,31055] [2022-11-20 10:45:26,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:45:26,701 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:45:26,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:26 WrapperNode [2022-11-20 10:45:26,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:45:26,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:45:26,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:45:26,703 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:45:26,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:26" (1/1) ... [2022-11-20 10:45:26,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:26" (1/1) ... [2022-11-20 10:45:26,760 INFO L138 Inliner]: procedures = 169, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 77 [2022-11-20 10:45:26,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:45:26,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:45:26,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:45:26,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:45:26,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:26" (1/1) ... [2022-11-20 10:45:26,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:26" (1/1) ... [2022-11-20 10:45:26,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:26" (1/1) ... [2022-11-20 10:45:26,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:26" (1/1) ... [2022-11-20 10:45:26,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:26" (1/1) ... [2022-11-20 10:45:26,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:26" (1/1) ... [2022-11-20 10:45:26,807 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:26" (1/1) ... [2022-11-20 10:45:26,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:26" (1/1) ... [2022-11-20 10:45:26,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:45:26,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:45:26,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:45:26,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:45:26,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:26" (1/1) ... [2022-11-20 10:45:26,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:45:26,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebfd85c-1f96-4e15-a341-01cd094b0161/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:45:26,866 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebfd85c-1f96-4e15-a341-01cd094b0161/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:45:26,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebfd85c-1f96-4e15-a341-01cd094b0161/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:45:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:45:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 10:45:26,918 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 10:45:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 10:45:26,919 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 10:45:26,919 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 10:45:26,919 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 10:45:26,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:45:26,919 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 10:45:26,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:45:26,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:45:26,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:45:26,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:45:26,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:45:26,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:45:26,922 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 10:45:27,172 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:45:27,174 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:45:27,470 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:45:27,531 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:45:27,531 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:45:27,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:45:27 BoogieIcfgContainer [2022-11-20 10:45:27,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:45:27,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:45:27,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:45:27,547 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:45:27,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:45:26" (1/3) ... [2022-11-20 10:45:27,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23dc4a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:45:27, skipping insertion in model container [2022-11-20 10:45:27,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:26" (2/3) ... [2022-11-20 10:45:27,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23dc4a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:45:27, skipping insertion in model container [2022-11-20 10:45:27,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:45:27" (3/3) ... [2022-11-20 10:45:27,553 INFO L112 eAbstractionObserver]: Analyzing ICFG lazy01.i [2022-11-20 10:45:27,563 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:45:27,575 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:45:27,575 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-20 10:45:27,575 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:45:27,672 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 10:45:27,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 127 transitions, 278 flow [2022-11-20 10:45:27,800 INFO L130 PetriNetUnfolder]: 1/124 cut-off events. [2022-11-20 10:45:27,801 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 10:45:27,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 124 events. 1/124 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 153 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2022-11-20 10:45:27,808 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 127 transitions, 278 flow [2022-11-20 10:45:27,813 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 112 transitions, 239 flow [2022-11-20 10:45:27,823 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:45:27,831 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;@1a191ffd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:45:27,831 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-20 10:45:27,844 INFO L130 PetriNetUnfolder]: 0/37 cut-off events. [2022-11-20 10:45:27,844 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:45:27,844 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:27,845 INFO L209 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] [2022-11-20 10:45:27,846 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-20 10:45:27,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:27,852 INFO L85 PathProgramCache]: Analyzing trace with hash -243188371, now seen corresponding path program 1 times [2022-11-20 10:45:27,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:27,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804639364] [2022-11-20 10:45:27,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:27,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:28,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:28,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:28,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:28,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804639364] [2022-11-20 10:45:28,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804639364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:28,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:28,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:45:28,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91480935] [2022-11-20 10:45:28,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:28,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:45:28,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:28,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:45:28,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:45:28,246 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 127 [2022-11-20 10:45:28,250 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 112 transitions, 239 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:28,250 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:45:28,251 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 127 [2022-11-20 10:45:28,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:45:28,760 INFO L130 PetriNetUnfolder]: 475/1514 cut-off events. [2022-11-20 10:45:28,760 INFO L131 PetriNetUnfolder]: For 217/217 co-relation queries the response was YES. [2022-11-20 10:45:28,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2529 conditions, 1514 events. 475/1514 cut-off events. For 217/217 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 11406 event pairs, 200 based on Foata normal form. 91/1322 useless extension candidates. Maximal degree in co-relation 2391. Up to 447 conditions per place. [2022-11-20 10:45:28,788 INFO L137 encePairwiseOnDemand]: 115/127 looper letters, 28 selfloop transitions, 8 changer transitions 0/126 dead transitions. [2022-11-20 10:45:28,788 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 126 transitions, 351 flow [2022-11-20 10:45:28,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:45:28,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:45:28,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2022-11-20 10:45:28,811 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.926509186351706 [2022-11-20 10:45:28,812 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 353 transitions. [2022-11-20 10:45:28,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 353 transitions. [2022-11-20 10:45:28,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:45:28,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 353 transitions. [2022-11-20 10:45:28,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:28,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:28,839 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:28,842 INFO L175 Difference]: Start difference. First operand has 121 places, 112 transitions, 239 flow. Second operand 3 states and 353 transitions. [2022-11-20 10:45:28,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 126 transitions, 351 flow [2022-11-20 10:45:28,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 126 transitions, 335 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 10:45:28,860 INFO L231 Difference]: Finished difference. Result has 119 places, 118 transitions, 296 flow [2022-11-20 10:45:28,862 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=119, PETRI_TRANSITIONS=118} [2022-11-20 10:45:28,869 INFO L288 CegarLoopForPetriNet]: 121 programPoint places, -2 predicate places. [2022-11-20 10:45:28,870 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 118 transitions, 296 flow [2022-11-20 10:45:28,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:28,870 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:28,871 INFO L209 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] [2022-11-20 10:45:28,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:45:28,872 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-20 10:45:28,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:28,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1186266279, now seen corresponding path program 1 times [2022-11-20 10:45:28,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:28,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337770641] [2022-11-20 10:45:28,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:28,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:29,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:29,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:29,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337770641] [2022-11-20 10:45:29,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337770641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:29,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:29,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:45:29,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322262721] [2022-11-20 10:45:29,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:29,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:45:29,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:29,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:45:29,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:45:29,025 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 127 [2022-11-20 10:45:29,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 118 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:29,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:45:29,026 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 127 [2022-11-20 10:45:29,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:45:29,482 INFO L130 PetriNetUnfolder]: 670/2046 cut-off events. [2022-11-20 10:45:29,482 INFO L131 PetriNetUnfolder]: For 736/795 co-relation queries the response was YES. [2022-11-20 10:45:29,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4240 conditions, 2046 events. 670/2046 cut-off events. For 736/795 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 16568 event pairs, 337 based on Foata normal form. 5/1802 useless extension candidates. Maximal degree in co-relation 3404. Up to 939 conditions per place. [2022-11-20 10:45:29,505 INFO L137 encePairwiseOnDemand]: 120/127 looper letters, 38 selfloop transitions, 10 changer transitions 0/136 dead transitions. [2022-11-20 10:45:29,505 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 136 transitions, 465 flow [2022-11-20 10:45:29,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:45:29,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:45:29,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2022-11-20 10:45:29,509 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8976377952755905 [2022-11-20 10:45:29,509 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 342 transitions. [2022-11-20 10:45:29,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 342 transitions. [2022-11-20 10:45:29,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:45:29,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 342 transitions. [2022-11-20 10:45:29,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:29,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:29,515 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:29,515 INFO L175 Difference]: Start difference. First operand has 119 places, 118 transitions, 296 flow. Second operand 3 states and 342 transitions. [2022-11-20 10:45:29,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 136 transitions, 465 flow [2022-11-20 10:45:29,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 136 transitions, 439 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:45:29,528 INFO L231 Difference]: Finished difference. Result has 121 places, 126 transitions, 366 flow [2022-11-20 10:45:29,529 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=366, PETRI_PLACES=121, PETRI_TRANSITIONS=126} [2022-11-20 10:45:29,530 INFO L288 CegarLoopForPetriNet]: 121 programPoint places, 0 predicate places. [2022-11-20 10:45:29,530 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 126 transitions, 366 flow [2022-11-20 10:45:29,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:29,532 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:29,532 INFO L209 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] [2022-11-20 10:45:29,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:45:29,533 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-20 10:45:29,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:29,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1564876385, now seen corresponding path program 1 times [2022-11-20 10:45:29,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:29,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295713259] [2022-11-20 10:45:29,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:29,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:29,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:29,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:29,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295713259] [2022-11-20 10:45:29,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295713259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:29,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:29,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:45:29,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334333891] [2022-11-20 10:45:29,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:29,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:45:29,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:29,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:45:29,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:45:29,635 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 127 [2022-11-20 10:45:29,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 126 transitions, 366 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:29,636 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:45:29,636 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 127 [2022-11-20 10:45:29,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:45:30,097 INFO L130 PetriNetUnfolder]: 787/2411 cut-off events. [2022-11-20 10:45:30,097 INFO L131 PetriNetUnfolder]: For 1167/1185 co-relation queries the response was YES. [2022-11-20 10:45:30,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5338 conditions, 2411 events. 787/2411 cut-off events. For 1167/1185 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 20082 event pairs, 310 based on Foata normal form. 0/2125 useless extension candidates. Maximal degree in co-relation 4396. Up to 1033 conditions per place. [2022-11-20 10:45:30,125 INFO L137 encePairwiseOnDemand]: 120/127 looper letters, 44 selfloop transitions, 13 changer transitions 0/146 dead transitions. [2022-11-20 10:45:30,125 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 146 transitions, 573 flow [2022-11-20 10:45:30,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:45:30,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:45:30,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2022-11-20 10:45:30,127 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8976377952755905 [2022-11-20 10:45:30,128 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 342 transitions. [2022-11-20 10:45:30,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 342 transitions. [2022-11-20 10:45:30,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:45:30,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 342 transitions. [2022-11-20 10:45:30,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:30,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:30,131 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:30,132 INFO L175 Difference]: Start difference. First operand has 121 places, 126 transitions, 366 flow. Second operand 3 states and 342 transitions. [2022-11-20 10:45:30,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 146 transitions, 573 flow [2022-11-20 10:45:30,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 146 transitions, 545 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:45:30,139 INFO L231 Difference]: Finished difference. Result has 123 places, 135 transitions, 460 flow [2022-11-20 10:45:30,139 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=460, PETRI_PLACES=123, PETRI_TRANSITIONS=135} [2022-11-20 10:45:30,140 INFO L288 CegarLoopForPetriNet]: 121 programPoint places, 2 predicate places. [2022-11-20 10:45:30,141 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 135 transitions, 460 flow [2022-11-20 10:45:30,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:30,141 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:30,142 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:30,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:45:30,142 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-20 10:45:30,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:30,143 INFO L85 PathProgramCache]: Analyzing trace with hash -441549237, now seen corresponding path program 1 times [2022-11-20 10:45:30,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:30,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113992127] [2022-11-20 10:45:30,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:30,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:30,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:30,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:30,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113992127] [2022-11-20 10:45:30,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113992127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:30,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:30,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:45:30,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988132747] [2022-11-20 10:45:30,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:30,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:45:30,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:30,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:45:30,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:45:30,371 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 127 [2022-11-20 10:45:30,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 135 transitions, 460 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:30,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:45:30,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 127 [2022-11-20 10:45:30,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:45:30,491 INFO L130 PetriNetUnfolder]: 26/374 cut-off events. [2022-11-20 10:45:30,491 INFO L131 PetriNetUnfolder]: For 123/123 co-relation queries the response was YES. [2022-11-20 10:45:30,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 651 conditions, 374 events. 26/374 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1673 event pairs, 12 based on Foata normal form. 16/375 useless extension candidates. Maximal degree in co-relation 439. Up to 47 conditions per place. [2022-11-20 10:45:30,494 INFO L137 encePairwiseOnDemand]: 121/127 looper letters, 16 selfloop transitions, 6 changer transitions 1/111 dead transitions. [2022-11-20 10:45:30,495 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 111 transitions, 329 flow [2022-11-20 10:45:30,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:45:30,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:45:30,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 343 transitions. [2022-11-20 10:45:30,497 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9002624671916011 [2022-11-20 10:45:30,498 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 343 transitions. [2022-11-20 10:45:30,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 343 transitions. [2022-11-20 10:45:30,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:45:30,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 343 transitions. [2022-11-20 10:45:30,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:30,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:30,506 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:30,506 INFO L175 Difference]: Start difference. First operand has 123 places, 135 transitions, 460 flow. Second operand 3 states and 343 transitions. [2022-11-20 10:45:30,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 111 transitions, 329 flow [2022-11-20 10:45:30,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 111 transitions, 291 flow, removed 13 selfloop flow, removed 6 redundant places. [2022-11-20 10:45:30,511 INFO L231 Difference]: Finished difference. Result has 114 places, 106 transitions, 244 flow [2022-11-20 10:45:30,515 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=114, PETRI_TRANSITIONS=106} [2022-11-20 10:45:30,516 INFO L288 CegarLoopForPetriNet]: 121 programPoint places, -7 predicate places. [2022-11-20 10:45:30,517 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 106 transitions, 244 flow [2022-11-20 10:45:30,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:30,517 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:30,517 INFO L209 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] [2022-11-20 10:45:30,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:45:30,518 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-20 10:45:30,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:30,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1546084073, now seen corresponding path program 1 times [2022-11-20 10:45:30,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:30,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446799900] [2022-11-20 10:45:30,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:30,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:31,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:31,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:31,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446799900] [2022-11-20 10:45:31,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446799900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:31,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:31,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:45:31,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787444895] [2022-11-20 10:45:31,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:31,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:45:31,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:31,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:45:31,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:45:31,025 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 127 [2022-11-20 10:45:31,026 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 106 transitions, 244 flow. Second operand has 6 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,026 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:45:31,027 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 127 [2022-11-20 10:45:31,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:45:31,162 INFO L130 PetriNetUnfolder]: 4/245 cut-off events. [2022-11-20 10:45:31,162 INFO L131 PetriNetUnfolder]: For 3/22 co-relation queries the response was YES. [2022-11-20 10:45:31,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 245 events. 4/245 cut-off events. For 3/22 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 765 event pairs, 2 based on Foata normal form. 12/248 useless extension candidates. Maximal degree in co-relation 299. Up to 42 conditions per place. [2022-11-20 10:45:31,164 INFO L137 encePairwiseOnDemand]: 122/127 looper letters, 21 selfloop transitions, 4 changer transitions 0/105 dead transitions. [2022-11-20 10:45:31,164 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 105 transitions, 292 flow [2022-11-20 10:45:31,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:45:31,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:45:31,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 596 transitions. [2022-11-20 10:45:31,167 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7821522309711286 [2022-11-20 10:45:31,167 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 596 transitions. [2022-11-20 10:45:31,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 596 transitions. [2022-11-20 10:45:31,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:45:31,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 596 transitions. [2022-11-20 10:45:31,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.33333333333333) internal successors, (596), 6 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,172 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,173 INFO L175 Difference]: Start difference. First operand has 114 places, 106 transitions, 244 flow. Second operand 6 states and 596 transitions. [2022-11-20 10:45:31,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 105 transitions, 292 flow [2022-11-20 10:45:31,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 105 transitions, 286 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:45:31,176 INFO L231 Difference]: Finished difference. Result has 116 places, 105 transitions, 244 flow [2022-11-20 10:45:31,176 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=244, PETRI_PLACES=116, PETRI_TRANSITIONS=105} [2022-11-20 10:45:31,177 INFO L288 CegarLoopForPetriNet]: 121 programPoint places, -5 predicate places. [2022-11-20 10:45:31,177 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 105 transitions, 244 flow [2022-11-20 10:45:31,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,178 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:31,178 INFO L209 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, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:31,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:45:31,179 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-20 10:45:31,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:31,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1569043787, now seen corresponding path program 1 times [2022-11-20 10:45:31,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:31,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422511648] [2022-11-20 10:45:31,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:31,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:31,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:31,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:31,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422511648] [2022-11-20 10:45:31,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422511648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:31,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:31,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:45:31,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209708542] [2022-11-20 10:45:31,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:31,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:45:31,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:31,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:45:31,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:45:31,840 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 127 [2022-11-20 10:45:31,842 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 105 transitions, 244 flow. Second operand has 6 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,842 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:45:31,842 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 127 [2022-11-20 10:45:31,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:45:31,965 INFO L130 PetriNetUnfolder]: 4/241 cut-off events. [2022-11-20 10:45:31,965 INFO L131 PetriNetUnfolder]: For 4/20 co-relation queries the response was YES. [2022-11-20 10:45:31,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 241 events. 4/241 cut-off events. For 4/20 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 748 event pairs, 2 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 284. Up to 20 conditions per place. [2022-11-20 10:45:31,966 INFO L137 encePairwiseOnDemand]: 122/127 looper letters, 20 selfloop transitions, 4 changer transitions 0/104 dead transitions. [2022-11-20 10:45:31,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 104 transitions, 290 flow [2022-11-20 10:45:31,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:45:31,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:45:31,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 595 transitions. [2022-11-20 10:45:31,972 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7808398950131233 [2022-11-20 10:45:31,973 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 595 transitions. [2022-11-20 10:45:31,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 595 transitions. [2022-11-20 10:45:31,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:45:31,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 595 transitions. [2022-11-20 10:45:31,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.16666666666667) internal successors, (595), 6 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,979 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,979 INFO L175 Difference]: Start difference. First operand has 116 places, 105 transitions, 244 flow. Second operand 6 states and 595 transitions. [2022-11-20 10:45:31,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 104 transitions, 290 flow [2022-11-20 10:45:31,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 104 transitions, 283 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 10:45:31,983 INFO L231 Difference]: Finished difference. Result has 116 places, 104 transitions, 243 flow [2022-11-20 10:45:31,983 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=243, PETRI_PLACES=116, PETRI_TRANSITIONS=104} [2022-11-20 10:45:31,986 INFO L288 CegarLoopForPetriNet]: 121 programPoint places, -5 predicate places. [2022-11-20 10:45:31,986 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 104 transitions, 243 flow [2022-11-20 10:45:31,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,987 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:31,987 INFO L209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:31,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:45:31,988 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-20 10:45:31,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:31,989 INFO L85 PathProgramCache]: Analyzing trace with hash 90711361, now seen corresponding path program 1 times [2022-11-20 10:45:31,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:31,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175707679] [2022-11-20 10:45:31,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:31,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:32,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:32,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:32,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175707679] [2022-11-20 10:45:32,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175707679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:32,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:32,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:45:32,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776974263] [2022-11-20 10:45:32,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:32,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:45:32,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:32,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:45:32,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:45:32,591 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 127 [2022-11-20 10:45:32,592 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 104 transitions, 243 flow. Second operand has 6 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:32,592 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:45:32,593 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 127 [2022-11-20 10:45:32,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:45:32,667 INFO L130 PetriNetUnfolder]: 4/239 cut-off events. [2022-11-20 10:45:32,667 INFO L131 PetriNetUnfolder]: For 7/24 co-relation queries the response was YES. [2022-11-20 10:45:32,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 239 events. 4/239 cut-off events. For 7/24 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 747 event pairs, 2 based on Foata normal form. 2/236 useless extension candidates. Maximal degree in co-relation 291. Up to 40 conditions per place. [2022-11-20 10:45:32,669 INFO L137 encePairwiseOnDemand]: 122/127 looper letters, 0 selfloop transitions, 0 changer transitions 103/103 dead transitions. [2022-11-20 10:45:32,669 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 103 transitions, 287 flow [2022-11-20 10:45:32,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:45:32,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:45:32,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 594 transitions. [2022-11-20 10:45:32,671 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7795275590551181 [2022-11-20 10:45:32,672 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 594 transitions. [2022-11-20 10:45:32,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 594 transitions. [2022-11-20 10:45:32,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:45:32,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 594 transitions. [2022-11-20 10:45:32,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:32,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:32,676 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:32,677 INFO L175 Difference]: Start difference. First operand has 116 places, 104 transitions, 243 flow. Second operand 6 states and 594 transitions. [2022-11-20 10:45:32,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 103 transitions, 287 flow [2022-11-20 10:45:32,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 103 transitions, 280 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 10:45:32,679 INFO L231 Difference]: Finished difference. Result has 116 places, 0 transitions, 0 flow [2022-11-20 10:45:32,679 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=116, PETRI_TRANSITIONS=0} [2022-11-20 10:45:32,680 INFO L288 CegarLoopForPetriNet]: 121 programPoint places, -5 predicate places. [2022-11-20 10:45:32,680 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 0 transitions, 0 flow [2022-11-20 10:45:32,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:32,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (15 of 16 remaining) [2022-11-20 10:45:32,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2022-11-20 10:45:32,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2022-11-20 10:45:32,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2022-11-20 10:45:32,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2022-11-20 10:45:32,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2022-11-20 10:45:32,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2022-11-20 10:45:32,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2022-11-20 10:45:32,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 16 remaining) [2022-11-20 10:45:32,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 16 remaining) [2022-11-20 10:45:32,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 16 remaining) [2022-11-20 10:45:32,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2022-11-20 10:45:32,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2022-11-20 10:45:32,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2022-11-20 10:45:32,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2022-11-20 10:45:32,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2022-11-20 10:45:32,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:45:32,689 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:32,695 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 10:45:32,696 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:45:32,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:45:32 BasicIcfg [2022-11-20 10:45:32,702 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:45:32,703 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:45:32,703 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:45:32,703 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:45:32,704 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:45:27" (3/4) ... [2022-11-20 10:45:32,707 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 10:45:32,714 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-20 10:45:32,714 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-20 10:45:32,714 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-20 10:45:32,719 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-20 10:45:32,720 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 10:45:32,720 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 10:45:32,720 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 10:45:32,756 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebfd85c-1f96-4e15-a341-01cd094b0161/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 10:45:32,756 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:45:32,757 INFO L158 Benchmark]: Toolchain (without parser) took 6718.01ms. Allocated memory was 140.5MB in the beginning and 232.8MB in the end (delta: 92.3MB). Free memory was 99.2MB in the beginning and 135.5MB in the end (delta: -36.3MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. [2022-11-20 10:45:32,758 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 140.5MB. Free memory is still 93.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:45:32,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 659.86ms. Allocated memory is still 140.5MB. Free memory was 98.8MB in the beginning and 79.0MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 10:45:32,758 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.20ms. Allocated memory is still 140.5MB. Free memory was 79.0MB in the beginning and 76.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:45:32,759 INFO L158 Benchmark]: Boogie Preprocessor took 50.80ms. Allocated memory is still 140.5MB. Free memory was 76.9MB in the beginning and 75.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:45:32,759 INFO L158 Benchmark]: RCFGBuilder took 721.18ms. Allocated memory is still 140.5MB. Free memory was 75.1MB in the beginning and 110.8MB in the end (delta: -35.6MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2022-11-20 10:45:32,760 INFO L158 Benchmark]: TraceAbstraction took 5160.79ms. Allocated memory was 140.5MB in the beginning and 232.8MB in the end (delta: 92.3MB). Free memory was 109.9MB in the beginning and 138.6MB in the end (delta: -28.7MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. [2022-11-20 10:45:32,760 INFO L158 Benchmark]: Witness Printer took 53.79ms. Allocated memory is still 232.8MB. Free memory was 138.6MB in the beginning and 135.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 10:45:32,762 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 140.5MB. Free memory is still 93.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 659.86ms. Allocated memory is still 140.5MB. Free memory was 98.8MB in the beginning and 79.0MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.20ms. Allocated memory is still 140.5MB. Free memory was 79.0MB in the beginning and 76.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.80ms. Allocated memory is still 140.5MB. Free memory was 76.9MB in the beginning and 75.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 721.18ms. Allocated memory is still 140.5MB. Free memory was 75.1MB in the beginning and 110.8MB in the end (delta: -35.6MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * TraceAbstraction took 5160.79ms. Allocated memory was 140.5MB in the beginning and 232.8MB in the end (delta: 92.3MB). Free memory was 109.9MB in the beginning and 138.6MB in the end (delta: -28.7MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. * Witness Printer took 53.79ms. Allocated memory is still 232.8MB. Free memory was 138.6MB in the beginning and 135.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 721]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 735]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 736]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 737]: 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 7 procedures, 177 locations, 16 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: 5.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 60 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 60 mSDsluCounter, 90 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 242 IncrementalHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 90 mSDtfsCounter, 242 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=460occurred in iteration=3, InterpolantAutomatonStates: 30, 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, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 372 NumberOfCodeBlocks, 372 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 365 ConstructedInterpolants, 0 QuantifiedInterpolants, 632 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 10:45:32,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebfd85c-1f96-4e15-a341-01cd094b0161/bin/uautomizer-ug76WZFUDN/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