./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/scull.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_e97f5fff-aeb6-4a72-83f5-d6f493fe96e2/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97f5fff-aeb6-4a72-83f5-d6f493fe96e2/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97f5fff-aeb6-4a72-83f5-d6f493fe96e2/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97f5fff-aeb6-4a72-83f5-d6f493fe96e2/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/scull.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97f5fff-aeb6-4a72-83f5-d6f493fe96e2/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97f5fff-aeb6-4a72-83f5-d6f493fe96e2/bin/uautomizer-tPACEb0tL8 --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 aa00f20131f5095ed14e7a46332bb5342dc26be5a17ecfa68bf5b51120e1579b --- 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-e04fb08 [2022-11-16 10:54:54,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 10:54:54,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 10:54:54,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 10:54:54,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 10:54:54,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 10:54:54,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 10:54:54,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 10:54:54,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 10:54:54,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 10:54:54,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 10:54:54,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 10:54:54,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 10:54:54,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 10:54:54,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 10:54:54,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 10:54:54,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 10:54:54,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 10:54:54,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 10:54:54,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 10:54:54,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 10:54:54,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 10:54:54,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 10:54:54,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 10:54:54,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 10:54:54,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 10:54:54,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 10:54:54,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 10:54:54,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 10:54:54,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 10:54:54,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 10:54:54,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 10:54:54,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 10:54:54,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 10:54:54,246 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 10:54:54,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 10:54:54,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 10:54:54,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 10:54:54,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 10:54:54,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 10:54:54,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 10:54:54,252 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97f5fff-aeb6-4a72-83f5-d6f493fe96e2/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 10:54:54,277 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 10:54:54,277 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 10:54:54,278 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 10:54:54,278 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 10:54:54,279 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 10:54:54,279 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 10:54:54,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 10:54:54,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 10:54:54,281 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 10:54:54,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 10:54:54,282 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 10:54:54,282 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 10:54:54,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 10:54:54,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 10:54:54,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 10:54:54,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 10:54:54,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 10:54:54,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 10:54:54,285 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 10:54:54,285 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 10:54:54,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 10:54:54,286 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 10:54:54,287 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 10:54:54,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 10:54:54,287 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 10:54:54,288 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 10:54:54,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:54:54,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 10:54:54,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 10:54:54,289 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 10:54:54,290 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 10:54:54,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 10:54:54,291 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 10:54:54,291 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 10:54:54,291 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 10:54:54,292 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_e97f5fff-aeb6-4a72-83f5-d6f493fe96e2/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97f5fff-aeb6-4a72-83f5-d6f493fe96e2/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa00f20131f5095ed14e7a46332bb5342dc26be5a17ecfa68bf5b51120e1579b [2022-11-16 10:54:54,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 10:54:54,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 10:54:54,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 10:54:54,711 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 10:54:54,712 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 10:54:54,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97f5fff-aeb6-4a72-83f5-d6f493fe96e2/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-atomic/scull.i [2022-11-16 10:54:54,820 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97f5fff-aeb6-4a72-83f5-d6f493fe96e2/bin/uautomizer-tPACEb0tL8/data/5d5077fa1/e02e280fdaa1420bb0db19d25e9a2ce8/FLAGe8640f9d9 [2022-11-16 10:54:55,525 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 10:54:55,526 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97f5fff-aeb6-4a72-83f5-d6f493fe96e2/sv-benchmarks/c/pthread-atomic/scull.i [2022-11-16 10:54:55,552 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97f5fff-aeb6-4a72-83f5-d6f493fe96e2/bin/uautomizer-tPACEb0tL8/data/5d5077fa1/e02e280fdaa1420bb0db19d25e9a2ce8/FLAGe8640f9d9 [2022-11-16 10:54:55,679 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97f5fff-aeb6-4a72-83f5-d6f493fe96e2/bin/uautomizer-tPACEb0tL8/data/5d5077fa1/e02e280fdaa1420bb0db19d25e9a2ce8 [2022-11-16 10:54:55,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 10:54:55,685 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 10:54:55,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 10:54:55,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 10:54:55,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 10:54:55,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:54:55" (1/1) ... [2022-11-16 10:54:55,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e873326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:55, skipping insertion in model container [2022-11-16 10:54:55,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:54:55" (1/1) ... [2022-11-16 10:54:55,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 10:54:55,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 10:54:56,283 WARN L229 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_e97f5fff-aeb6-4a72-83f5-d6f493fe96e2/sv-benchmarks/c/pthread-atomic/scull.i[30879,30892] [2022-11-16 10:54:56,311 WARN L229 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_e97f5fff-aeb6-4a72-83f5-d6f493fe96e2/sv-benchmarks/c/pthread-atomic/scull.i[31740,31753] [2022-11-16 10:54:56,324 WARN L229 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_e97f5fff-aeb6-4a72-83f5-d6f493fe96e2/sv-benchmarks/c/pthread-atomic/scull.i[32508,32521] [2022-11-16 10:54:56,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:54:56,410 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 10:54:56,488 WARN L229 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_e97f5fff-aeb6-4a72-83f5-d6f493fe96e2/sv-benchmarks/c/pthread-atomic/scull.i[30879,30892] [2022-11-16 10:54:56,493 WARN L229 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_e97f5fff-aeb6-4a72-83f5-d6f493fe96e2/sv-benchmarks/c/pthread-atomic/scull.i[31740,31753] [2022-11-16 10:54:56,498 WARN L229 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_e97f5fff-aeb6-4a72-83f5-d6f493fe96e2/sv-benchmarks/c/pthread-atomic/scull.i[32508,32521] [2022-11-16 10:54:56,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:54:56,556 INFO L208 MainTranslator]: Completed translation [2022-11-16 10:54:56,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:56 WrapperNode [2022-11-16 10:54:56,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 10:54:56,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 10:54:56,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 10:54:56,559 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 10:54:56,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:56" (1/1) ... [2022-11-16 10:54:56,590 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:56" (1/1) ... [2022-11-16 10:54:56,667 INFO L138 Inliner]: procedures = 185, calls = 66, calls flagged for inlining = 29, calls inlined = 25, statements flattened = 532 [2022-11-16 10:54:56,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 10:54:56,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 10:54:56,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 10:54:56,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 10:54:56,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:56" (1/1) ... [2022-11-16 10:54:56,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:56" (1/1) ... [2022-11-16 10:54:56,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:56" (1/1) ... [2022-11-16 10:54:56,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:56" (1/1) ... [2022-11-16 10:54:56,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:56" (1/1) ... [2022-11-16 10:54:56,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:56" (1/1) ... [2022-11-16 10:54:56,732 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:56" (1/1) ... [2022-11-16 10:54:56,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:56" (1/1) ... [2022-11-16 10:54:56,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 10:54:56,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 10:54:56,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 10:54:56,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 10:54:56,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:56" (1/1) ... [2022-11-16 10:54:56,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:54:56,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97f5fff-aeb6-4a72-83f5-d6f493fe96e2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:54:56,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97f5fff-aeb6-4a72-83f5-d6f493fe96e2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 10:54:56,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97f5fff-aeb6-4a72-83f5-d6f493fe96e2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 10:54:56,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 10:54:56,902 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 10:54:56,903 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 10:54:56,903 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 10:54:56,903 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 10:54:56,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 10:54:56,904 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 10:54:56,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 10:54:56,904 INFO L130 BoogieDeclarations]: Found specification of procedure loader [2022-11-16 10:54:56,905 INFO L138 BoogieDeclarations]: Found implementation of procedure loader [2022-11-16 10:54:56,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 10:54:56,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 10:54:56,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 10:54:56,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 10:54:56,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 10:54:56,908 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 10:54:57,213 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 10:54:57,216 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 10:54:57,398 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L890: assume { :end_inline_scull_trim } true; [2022-11-16 10:54:57,399 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-1: assume -2147483648 <= scull_cleanup_module_#t~ret42#1 && scull_cleanup_module_#t~ret42#1 <= 2147483647; [2022-11-16 10:54:57,399 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-2: havoc scull_cleanup_module_#t~ret42#1; [2022-11-16 10:54:57,400 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L887: assume { :end_inline_scull_cleanup_module } true; [2022-11-16 10:54:57,400 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint scull_trim_returnLabel#1: scull_cleanup_module_#t~ret42#1 := scull_trim_#res#1; [2022-11-16 10:54:57,400 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L898: scull_init_module_#res#1 := scull_init_module_~result~0#1; [2022-11-16 10:54:58,261 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 10:54:58,278 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 10:54:58,278 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 10:54:58,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:54:58 BoogieIcfgContainer [2022-11-16 10:54:58,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 10:54:58,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 10:54:58,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 10:54:58,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 10:54:58,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:54:55" (1/3) ... [2022-11-16 10:54:58,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734314b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:54:58, skipping insertion in model container [2022-11-16 10:54:58,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:56" (2/3) ... [2022-11-16 10:54:58,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734314b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:54:58, skipping insertion in model container [2022-11-16 10:54:58,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:54:58" (3/3) ... [2022-11-16 10:54:58,296 INFO L112 eAbstractionObserver]: Analyzing ICFG scull.i [2022-11-16 10:54:58,313 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 10:54:58,326 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 10:54:58,327 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2022-11-16 10:54:58,327 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 10:54:58,579 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 10:54:58,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 596 places, 602 transitions, 1228 flow [2022-11-16 10:54:59,194 INFO L130 PetriNetUnfolder]: 16/599 cut-off events. [2022-11-16 10:54:59,194 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 10:54:59,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 599 events. 16/599 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1798 event pairs, 0 based on Foata normal form. 0/538 useless extension candidates. Maximal degree in co-relation 534. Up to 4 conditions per place. [2022-11-16 10:54:59,225 INFO L82 GeneralOperation]: Start removeDead. Operand has 596 places, 602 transitions, 1228 flow [2022-11-16 10:54:59,247 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 581 places, 587 transitions, 1189 flow [2022-11-16 10:54:59,273 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 10:54:59,286 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;@4e2469c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 10:54:59,287 INFO L358 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2022-11-16 10:54:59,310 INFO L130 PetriNetUnfolder]: 0/90 cut-off events. [2022-11-16 10:54:59,310 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 10:54:59,311 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:59,312 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] [2022-11-16 10:54:59,313 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 10:54:59,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:59,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1666742556, now seen corresponding path program 1 times [2022-11-16 10:54:59,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:59,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846541002] [2022-11-16 10:54:59,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:59,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:59,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:59,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:54:59,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:59,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846541002] [2022-11-16 10:54:59,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846541002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:59,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:59,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:54:59,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547875463] [2022-11-16 10:54:59,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:59,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:54:59,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:59,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:54:59,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:54:59,871 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 582 out of 602 [2022-11-16 10:54:59,880 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 587 transitions, 1189 flow. Second operand has 3 states, 3 states have (on average 583.3333333333334) internal successors, (1750), 3 states have internal predecessors, (1750), 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) [2022-11-16 10:54:59,881 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:59,881 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 582 of 602 [2022-11-16 10:54:59,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:55:01,013 INFO L130 PetriNetUnfolder]: 86/2461 cut-off events. [2022-11-16 10:55:01,014 INFO L131 PetriNetUnfolder]: For 45/49 co-relation queries the response was YES. [2022-11-16 10:55:01,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2533 conditions, 2461 events. 86/2461 cut-off events. For 45/49 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 14608 event pairs, 6 based on Foata normal form. 22/2195 useless extension candidates. Maximal degree in co-relation 2247. Up to 41 conditions per place. [2022-11-16 10:55:01,085 INFO L137 encePairwiseOnDemand]: 594/602 looper letters, 11 selfloop transitions, 2 changer transitions 0/581 dead transitions. [2022-11-16 10:55:01,085 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 577 places, 581 transitions, 1209 flow [2022-11-16 10:55:01,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:55:01,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:55:01,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1765 transitions. [2022-11-16 10:55:01,119 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9772978959025471 [2022-11-16 10:55:01,121 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1765 transitions. [2022-11-16 10:55:01,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1765 transitions. [2022-11-16 10:55:01,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:55:01,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1765 transitions. [2022-11-16 10:55:01,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 588.3333333333334) internal successors, (1765), 3 states have internal predecessors, (1765), 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) [2022-11-16 10:55:01,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 602.0) internal successors, (2408), 4 states have internal predecessors, (2408), 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) [2022-11-16 10:55:01,172 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 602.0) internal successors, (2408), 4 states have internal predecessors, (2408), 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) [2022-11-16 10:55:01,175 INFO L175 Difference]: Start difference. First operand has 581 places, 587 transitions, 1189 flow. Second operand 3 states and 1765 transitions. [2022-11-16 10:55:01,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 577 places, 581 transitions, 1209 flow [2022-11-16 10:55:01,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 572 places, 581 transitions, 1197 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 10:55:01,209 INFO L231 Difference]: Finished difference. Result has 573 places, 579 transitions, 1174 flow [2022-11-16 10:55:01,213 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=602, PETRI_DIFFERENCE_MINUEND_FLOW=1160, PETRI_DIFFERENCE_MINUEND_PLACES=570, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=577, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=575, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1174, PETRI_PLACES=573, PETRI_TRANSITIONS=579} [2022-11-16 10:55:01,219 INFO L288 CegarLoopForPetriNet]: 581 programPoint places, -8 predicate places. [2022-11-16 10:55:01,220 INFO L495 AbstractCegarLoop]: Abstraction has has 573 places, 579 transitions, 1174 flow [2022-11-16 10:55:01,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 583.3333333333334) internal successors, (1750), 3 states have internal predecessors, (1750), 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) [2022-11-16 10:55:01,222 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:55:01,223 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] [2022-11-16 10:55:01,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 10:55:01,225 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 10:55:01,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:55:01,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1007882261, now seen corresponding path program 1 times [2022-11-16 10:55:01,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:55:01,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348760344] [2022-11-16 10:55:01,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:55:01,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:55:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:02,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:55:02,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:55:02,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348760344] [2022-11-16 10:55:02,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348760344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:55:02,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:55:02,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:55:02,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613114864] [2022-11-16 10:55:02,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:55:02,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:55:02,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:55:02,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:55:02,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:55:02,138 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 564 out of 602 [2022-11-16 10:55:02,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 579 transitions, 1174 flow. Second operand has 6 states, 6 states have (on average 566.0) internal successors, (3396), 6 states have internal predecessors, (3396), 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) [2022-11-16 10:55:02,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:55:02,144 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 564 of 602 [2022-11-16 10:55:02,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:55:02,617 INFO L130 PetriNetUnfolder]: 19/784 cut-off events. [2022-11-16 10:55:02,617 INFO L131 PetriNetUnfolder]: For 2/24 co-relation queries the response was YES. [2022-11-16 10:55:02,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 823 conditions, 784 events. 19/784 cut-off events. For 2/24 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 3047 event pairs, 0 based on Foata normal form. 8/710 useless extension candidates. Maximal degree in co-relation 755. Up to 16 conditions per place. [2022-11-16 10:55:02,725 INFO L137 encePairwiseOnDemand]: 597/602 looper letters, 22 selfloop transitions, 4 changer transitions 0/578 dead transitions. [2022-11-16 10:55:02,726 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 577 places, 578 transitions, 1224 flow [2022-11-16 10:55:02,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:55:02,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:55:02,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3411 transitions. [2022-11-16 10:55:02,741 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9443521594684385 [2022-11-16 10:55:02,741 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3411 transitions. [2022-11-16 10:55:02,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3411 transitions. [2022-11-16 10:55:02,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:55:02,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3411 transitions. [2022-11-16 10:55:02,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 568.5) internal successors, (3411), 6 states have internal predecessors, (3411), 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) [2022-11-16 10:55:02,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 602.0) internal successors, (4214), 7 states have internal predecessors, (4214), 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) [2022-11-16 10:55:02,766 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 602.0) internal successors, (4214), 7 states have internal predecessors, (4214), 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) [2022-11-16 10:55:02,766 INFO L175 Difference]: Start difference. First operand has 573 places, 579 transitions, 1174 flow. Second operand 6 states and 3411 transitions. [2022-11-16 10:55:02,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 577 places, 578 transitions, 1224 flow [2022-11-16 10:55:02,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 577 places, 578 transitions, 1224 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 10:55:02,780 INFO L231 Difference]: Finished difference. Result has 577 places, 578 transitions, 1180 flow [2022-11-16 10:55:02,781 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=602, PETRI_DIFFERENCE_MINUEND_FLOW=1172, PETRI_DIFFERENCE_MINUEND_PLACES=572, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=578, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=574, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1180, PETRI_PLACES=577, PETRI_TRANSITIONS=578} [2022-11-16 10:55:02,782 INFO L288 CegarLoopForPetriNet]: 581 programPoint places, -4 predicate places. [2022-11-16 10:55:02,783 INFO L495 AbstractCegarLoop]: Abstraction has has 577 places, 578 transitions, 1180 flow [2022-11-16 10:55:02,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 566.0) internal successors, (3396), 6 states have internal predecessors, (3396), 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) [2022-11-16 10:55:02,786 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:55:02,786 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] [2022-11-16 10:55:02,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 10:55:02,787 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting loaderErr0ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 10:55:02,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:55:02,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1734008324, now seen corresponding path program 1 times [2022-11-16 10:55:02,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:55:02,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290759046] [2022-11-16 10:55:02,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:55:02,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:55:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:02,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:55:02,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:55:02,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290759046] [2022-11-16 10:55:02,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290759046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:55:02,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:55:02,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:55:02,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464258292] [2022-11-16 10:55:02,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:55:02,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:55:02,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:55:02,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:55:02,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:55:02,900 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 564 out of 602 [2022-11-16 10:55:02,903 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 577 places, 578 transitions, 1180 flow. Second operand has 3 states, 3 states have (on average 565.0) internal successors, (1695), 3 states have internal predecessors, (1695), 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) [2022-11-16 10:55:02,903 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:55:02,905 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 564 of 602 [2022-11-16 10:55:02,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:55:12,415 INFO L130 PetriNetUnfolder]: 2904/30549 cut-off events. [2022-11-16 10:55:12,416 INFO L131 PetriNetUnfolder]: For 197/197 co-relation queries the response was YES. [2022-11-16 10:55:12,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34142 conditions, 30549 events. 2904/30549 cut-off events. For 197/197 co-relation queries the response was YES. Maximal size of possible extension queue 442. Compared 414115 event pairs, 765 based on Foata normal form. 0/26208 useless extension candidates. Maximal degree in co-relation 29412. Up to 1907 conditions per place. [2022-11-16 10:55:12,918 INFO L137 encePairwiseOnDemand]: 584/602 looper letters, 39 selfloop transitions, 13 changer transitions 0/601 dead transitions. [2022-11-16 10:55:12,918 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 579 places, 601 transitions, 1335 flow [2022-11-16 10:55:12,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:55:12,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:55:12,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1749 transitions. [2022-11-16 10:55:12,924 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.96843853820598 [2022-11-16 10:55:12,924 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1749 transitions. [2022-11-16 10:55:12,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1749 transitions. [2022-11-16 10:55:12,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:55:12,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1749 transitions. [2022-11-16 10:55:12,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 583.0) internal successors, (1749), 3 states have internal predecessors, (1749), 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) [2022-11-16 10:55:12,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 602.0) internal successors, (2408), 4 states have internal predecessors, (2408), 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) [2022-11-16 10:55:12,938 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 602.0) internal successors, (2408), 4 states have internal predecessors, (2408), 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) [2022-11-16 10:55:12,938 INFO L175 Difference]: Start difference. First operand has 577 places, 578 transitions, 1180 flow. Second operand 3 states and 1749 transitions. [2022-11-16 10:55:12,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 579 places, 601 transitions, 1335 flow [2022-11-16 10:55:12,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 575 places, 601 transitions, 1328 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 10:55:12,959 INFO L231 Difference]: Finished difference. Result has 577 places, 591 transitions, 1287 flow [2022-11-16 10:55:12,960 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=602, PETRI_DIFFERENCE_MINUEND_FLOW=1173, PETRI_DIFFERENCE_MINUEND_PLACES=573, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=578, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=565, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1287, PETRI_PLACES=577, PETRI_TRANSITIONS=591} [2022-11-16 10:55:12,964 INFO L288 CegarLoopForPetriNet]: 581 programPoint places, -4 predicate places. [2022-11-16 10:55:12,964 INFO L495 AbstractCegarLoop]: Abstraction has has 577 places, 591 transitions, 1287 flow [2022-11-16 10:55:12,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 565.0) internal successors, (1695), 3 states have internal predecessors, (1695), 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) [2022-11-16 10:55:12,966 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:55:12,966 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] [2022-11-16 10:55:12,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 10:55:12,967 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting loaderErr1ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 10:55:12,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:55:12,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1354943877, now seen corresponding path program 1 times [2022-11-16 10:55:12,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:55:12,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532060987] [2022-11-16 10:55:12,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:55:12,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:55:13,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:13,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:55:13,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:55:13,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532060987] [2022-11-16 10:55:13,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532060987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:55:13,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:55:13,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:55:13,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708183884] [2022-11-16 10:55:13,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:55:13,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:55:13,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:55:13,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:55:13,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:55:13,077 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 561 out of 602 [2022-11-16 10:55:13,080 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 577 places, 591 transitions, 1287 flow. Second operand has 3 states, 3 states have (on average 562.6666666666666) internal successors, (1688), 3 states have internal predecessors, (1688), 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) [2022-11-16 10:55:13,080 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:55:13,080 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 561 of 602 [2022-11-16 10:55:13,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:55:26,159 INFO L130 PetriNetUnfolder]: 6772/48504 cut-off events. [2022-11-16 10:55:26,159 INFO L131 PetriNetUnfolder]: For 1236/1286 co-relation queries the response was YES. [2022-11-16 10:55:26,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59905 conditions, 48504 events. 6772/48504 cut-off events. For 1236/1286 co-relation queries the response was YES. Maximal size of possible extension queue 617. Compared 685048 event pairs, 3249 based on Foata normal form. 0/41072 useless extension candidates. Maximal degree in co-relation 32757. Up to 7150 conditions per place. [2022-11-16 10:55:26,994 INFO L137 encePairwiseOnDemand]: 591/602 looper letters, 47 selfloop transitions, 10 changer transitions 0/616 dead transitions. [2022-11-16 10:55:26,995 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 579 places, 616 transitions, 1454 flow [2022-11-16 10:55:26,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:55:26,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:55:27,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1741 transitions. [2022-11-16 10:55:27,002 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9640088593576965 [2022-11-16 10:55:27,004 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1741 transitions. [2022-11-16 10:55:27,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1741 transitions. [2022-11-16 10:55:27,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:55:27,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1741 transitions. [2022-11-16 10:55:27,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 580.3333333333334) internal successors, (1741), 3 states have internal predecessors, (1741), 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) [2022-11-16 10:55:27,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 602.0) internal successors, (2408), 4 states have internal predecessors, (2408), 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) [2022-11-16 10:55:27,019 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 602.0) internal successors, (2408), 4 states have internal predecessors, (2408), 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) [2022-11-16 10:55:27,019 INFO L175 Difference]: Start difference. First operand has 577 places, 591 transitions, 1287 flow. Second operand 3 states and 1741 transitions. [2022-11-16 10:55:27,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 579 places, 616 transitions, 1454 flow [2022-11-16 10:55:27,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 577 places, 616 transitions, 1428 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:55:27,052 INFO L231 Difference]: Finished difference. Result has 579 places, 600 transitions, 1339 flow [2022-11-16 10:55:27,053 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=602, PETRI_DIFFERENCE_MINUEND_FLOW=1261, PETRI_DIFFERENCE_MINUEND_PLACES=575, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1339, PETRI_PLACES=579, PETRI_TRANSITIONS=600} [2022-11-16 10:55:27,057 INFO L288 CegarLoopForPetriNet]: 581 programPoint places, -2 predicate places. [2022-11-16 10:55:27,057 INFO L495 AbstractCegarLoop]: Abstraction has has 579 places, 600 transitions, 1339 flow [2022-11-16 10:55:27,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 562.6666666666666) internal successors, (1688), 3 states have internal predecessors, (1688), 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) [2022-11-16 10:55:27,059 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:55:27,059 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] [2022-11-16 10:55:27,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 10:55:27,060 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting loaderErr2ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 10:55:27,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:55:27,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1031730497, now seen corresponding path program 1 times [2022-11-16 10:55:27,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:55:27,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363754277] [2022-11-16 10:55:27,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:55:27,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:55:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:27,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:55:27,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:55:27,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363754277] [2022-11-16 10:55:27,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363754277] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:55:27,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:55:27,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:55:27,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87562108] [2022-11-16 10:55:27,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:55:27,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:55:27,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:55:27,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:55:27,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:55:27,162 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 579 out of 602 [2022-11-16 10:55:27,164 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 600 transitions, 1339 flow. Second operand has 3 states, 3 states have (on average 580.0) internal successors, (1740), 3 states have internal predecessors, (1740), 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) [2022-11-16 10:55:27,165 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:55:27,165 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 579 of 602 [2022-11-16 10:55:27,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:55:37,233 INFO L130 PetriNetUnfolder]: 3140/41897 cut-off events. [2022-11-16 10:55:37,233 INFO L131 PetriNetUnfolder]: For 500/567 co-relation queries the response was YES. [2022-11-16 10:55:37,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47307 conditions, 41897 events. 3140/41897 cut-off events. For 500/567 co-relation queries the response was YES. Maximal size of possible extension queue 466. Compared 594236 event pairs, 726 based on Foata normal form. 0/36598 useless extension candidates. Maximal degree in co-relation 45400. Up to 1659 conditions per place. [2022-11-16 10:55:37,870 INFO L137 encePairwiseOnDemand]: 596/602 looper letters, 13 selfloop transitions, 3 changer transitions 0/602 dead transitions. [2022-11-16 10:55:37,870 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 578 places, 602 transitions, 1378 flow [2022-11-16 10:55:37,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:55:37,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:55:37,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1756 transitions. [2022-11-16 10:55:37,876 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9723145071982281 [2022-11-16 10:55:37,876 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1756 transitions. [2022-11-16 10:55:37,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1756 transitions. [2022-11-16 10:55:37,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:55:37,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1756 transitions. [2022-11-16 10:55:37,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 585.3333333333334) internal successors, (1756), 3 states have internal predecessors, (1756), 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) [2022-11-16 10:55:37,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 602.0) internal successors, (2408), 4 states have internal predecessors, (2408), 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) [2022-11-16 10:55:37,890 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 602.0) internal successors, (2408), 4 states have internal predecessors, (2408), 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) [2022-11-16 10:55:37,890 INFO L175 Difference]: Start difference. First operand has 579 places, 600 transitions, 1339 flow. Second operand 3 states and 1756 transitions. [2022-11-16 10:55:37,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 578 places, 602 transitions, 1378 flow [2022-11-16 10:55:37,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 576 places, 602 transitions, 1358 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:55:37,937 INFO L231 Difference]: Finished difference. Result has 577 places, 600 transitions, 1334 flow [2022-11-16 10:55:37,938 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=602, PETRI_DIFFERENCE_MINUEND_FLOW=1313, PETRI_DIFFERENCE_MINUEND_PLACES=574, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=597, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=594, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1334, PETRI_PLACES=577, PETRI_TRANSITIONS=600} [2022-11-16 10:55:37,942 INFO L288 CegarLoopForPetriNet]: 581 programPoint places, -4 predicate places. [2022-11-16 10:55:37,942 INFO L495 AbstractCegarLoop]: Abstraction has has 577 places, 600 transitions, 1334 flow [2022-11-16 10:55:37,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 580.0) internal successors, (1740), 3 states have internal predecessors, (1740), 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) [2022-11-16 10:55:37,945 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:55:37,945 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] [2022-11-16 10:55:37,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 10:55:37,946 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting loaderErr3ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 10:55:37,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:55:37,947 INFO L85 PathProgramCache]: Analyzing trace with hash -787774780, now seen corresponding path program 1 times [2022-11-16 10:55:37,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:55:37,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642279244] [2022-11-16 10:55:37,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:55:37,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:55:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:38,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:55:38,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:55:38,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642279244] [2022-11-16 10:55:38,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642279244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:55:38,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:55:38,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:55:38,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897967020] [2022-11-16 10:55:38,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:55:38,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:55:38,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:55:38,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:55:38,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:55:38,024 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 570 out of 602 [2022-11-16 10:55:38,027 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 577 places, 600 transitions, 1334 flow. Second operand has 3 states, 3 states have (on average 571.6666666666666) internal successors, (1715), 3 states have internal predecessors, (1715), 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) [2022-11-16 10:55:38,027 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:55:38,027 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 570 of 602 [2022-11-16 10:55:38,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:55:55,649 INFO L130 PetriNetUnfolder]: 7756/74663 cut-off events. [2022-11-16 10:55:55,659 INFO L131 PetriNetUnfolder]: For 303/305 co-relation queries the response was YES. [2022-11-16 10:55:56,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87252 conditions, 74663 events. 7756/74663 cut-off events. For 303/305 co-relation queries the response was YES. Maximal size of possible extension queue 990. Compared 1155848 event pairs, 2712 based on Foata normal form. 0/64508 useless extension candidates. Maximal degree in co-relation 43808. Up to 5116 conditions per place. [2022-11-16 10:55:56,751 INFO L137 encePairwiseOnDemand]: 594/602 looper letters, 32 selfloop transitions, 7 changer transitions 0/616 dead transitions. [2022-11-16 10:55:56,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 579 places, 616 transitions, 1447 flow [2022-11-16 10:55:56,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:55:56,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:55:56,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1750 transitions. [2022-11-16 10:55:56,757 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9689922480620154 [2022-11-16 10:55:56,757 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1750 transitions. [2022-11-16 10:55:56,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1750 transitions. [2022-11-16 10:55:56,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:55:56,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1750 transitions. [2022-11-16 10:55:56,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 583.3333333333334) internal successors, (1750), 3 states have internal predecessors, (1750), 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) [2022-11-16 10:55:56,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 602.0) internal successors, (2408), 4 states have internal predecessors, (2408), 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) [2022-11-16 10:55:56,770 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 602.0) internal successors, (2408), 4 states have internal predecessors, (2408), 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) [2022-11-16 10:55:56,770 INFO L175 Difference]: Start difference. First operand has 577 places, 600 transitions, 1334 flow. Second operand 3 states and 1750 transitions. [2022-11-16 10:55:56,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 579 places, 616 transitions, 1447 flow [2022-11-16 10:55:56,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 579 places, 616 transitions, 1447 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 10:55:56,785 INFO L231 Difference]: Finished difference. Result has 581 places, 606 transitions, 1388 flow [2022-11-16 10:55:56,786 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=602, PETRI_DIFFERENCE_MINUEND_FLOW=1334, PETRI_DIFFERENCE_MINUEND_PLACES=577, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=600, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=593, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1388, PETRI_PLACES=581, PETRI_TRANSITIONS=606} [2022-11-16 10:55:56,787 INFO L288 CegarLoopForPetriNet]: 581 programPoint places, 0 predicate places. [2022-11-16 10:55:56,788 INFO L495 AbstractCegarLoop]: Abstraction has has 581 places, 606 transitions, 1388 flow [2022-11-16 10:55:56,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 571.6666666666666) internal successors, (1715), 3 states have internal predecessors, (1715), 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) [2022-11-16 10:55:56,789 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:55:56,789 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] [2022-11-16 10:55:56,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 10:55:56,790 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting loaderErr4ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 10:55:56,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:55:56,790 INFO L85 PathProgramCache]: Analyzing trace with hash -895818101, now seen corresponding path program 1 times [2022-11-16 10:55:56,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:55:56,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026738887] [2022-11-16 10:55:56,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:55:56,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:55:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:56,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:55:56,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:55:56,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026738887] [2022-11-16 10:55:56,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026738887] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:55:56,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:55:56,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:55:56,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857890829] [2022-11-16 10:55:56,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:55:56,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:55:56,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:55:56,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:55:56,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:55:56,847 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 579 out of 602 [2022-11-16 10:55:56,850 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 606 transitions, 1388 flow. Second operand has 3 states, 3 states have (on average 580.0) internal successors, (1740), 3 states have internal predecessors, (1740), 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) [2022-11-16 10:55:56,850 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:55:56,850 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 579 of 602 [2022-11-16 10:55:56,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:56:04,920 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1642] L781-->L781-1: Formula: (= |v_#race~dev_quantum~0_13| 0) InVars {} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_13|} AuxVars[] AssignedVars[#race~dev_quantum~0][279], [553#L748-1true, Black: 613#(= |#race~dev_qset~0| 0), 628#true, Black: 619#(= |#race~dev_size~0| |loaderThread1of1ForFork2_scull_trim_#t~nondet8#1|), 329#L930-4true, Black: 623#true, 474#L781-1true, thread2Thread1of1ForFork1InUse, 625#(= |#race~scull_quantum~0| 0), 601#(= |#race~i~0| 0), Black: 630#(= |#race~dev_quantum~0| |loaderThread1of1ForFork2_scull_trim_#t~nondet9#1|), Black: 599#true, 279#L722-6true, 636#(= |#race~scull_qset~0| 0)]) [2022-11-16 10:56:04,920 INFO L383 tUnfolder$Statistics]: this new event has 283 ancestors and is cut-off event [2022-11-16 10:56:04,920 INFO L386 tUnfolder$Statistics]: existing Event has 283 ancestors and is cut-off event [2022-11-16 10:56:04,920 INFO L386 tUnfolder$Statistics]: existing Event has 235 ancestors and is cut-off event [2022-11-16 10:56:04,920 INFO L386 tUnfolder$Statistics]: existing Event has 235 ancestors and is cut-off event [2022-11-16 10:56:04,921 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1642] L781-->L781-1: Formula: (= |v_#race~dev_quantum~0_13| 0) InVars {} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_13|} AuxVars[] AssignedVars[#race~dev_quantum~0][280], [553#L748-1true, Black: 613#(= |#race~dev_qset~0| 0), 628#true, 352#L722-5true, Black: 619#(= |#race~dev_size~0| |loaderThread1of1ForFork2_scull_trim_#t~nondet8#1|), 329#L930-4true, Black: 623#true, 474#L781-1true, thread2Thread1of1ForFork1InUse, 625#(= |#race~scull_quantum~0| 0), 601#(= |#race~i~0| 0), Black: 630#(= |#race~dev_quantum~0| |loaderThread1of1ForFork2_scull_trim_#t~nondet9#1|), Black: 599#true, 636#(= |#race~scull_qset~0| 0)]) [2022-11-16 10:56:04,921 INFO L383 tUnfolder$Statistics]: this new event has 282 ancestors and is cut-off event [2022-11-16 10:56:04,921 INFO L386 tUnfolder$Statistics]: existing Event has 234 ancestors and is cut-off event [2022-11-16 10:56:04,921 INFO L386 tUnfolder$Statistics]: existing Event has 282 ancestors and is cut-off event [2022-11-16 10:56:04,921 INFO L386 tUnfolder$Statistics]: existing Event has 234 ancestors and is cut-off event [2022-11-16 10:56:04,921 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1642] L781-->L781-1: Formula: (= |v_#race~dev_quantum~0_13| 0) InVars {} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_13|} AuxVars[] AssignedVars[#race~dev_quantum~0][280], [553#L748-1true, 122#loaderErr3ASSERT_VIOLATIONDATA_RACEtrue, Black: 613#(= |#race~dev_qset~0| 0), 628#true, Black: 619#(= |#race~dev_size~0| |loaderThread1of1ForFork2_scull_trim_#t~nondet8#1|), 329#L930-4true, Black: 623#true, 474#L781-1true, thread2Thread1of1ForFork1InUse, 625#(= |#race~scull_quantum~0| 0), 601#(= |#race~i~0| 0), Black: 630#(= |#race~dev_quantum~0| |loaderThread1of1ForFork2_scull_trim_#t~nondet9#1|), Black: 599#true, 636#(= |#race~scull_qset~0| 0)]) [2022-11-16 10:56:04,922 INFO L383 tUnfolder$Statistics]: this new event has 283 ancestors and is cut-off event [2022-11-16 10:56:04,922 INFO L386 tUnfolder$Statistics]: existing Event has 235 ancestors and is cut-off event [2022-11-16 10:56:04,922 INFO L386 tUnfolder$Statistics]: existing Event has 283 ancestors and is cut-off event [2022-11-16 10:56:04,922 INFO L386 tUnfolder$Statistics]: existing Event has 235 ancestors and is cut-off event [2022-11-16 10:56:05,015 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1642] L781-->L781-1: Formula: (= |v_#race~dev_quantum~0_13| 0) InVars {} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_13|} AuxVars[] AssignedVars[#race~dev_quantum~0][280], [553#L748-1true, Black: 613#(= |#race~dev_qset~0| 0), 628#true, Black: 619#(= |#race~dev_size~0| |loaderThread1of1ForFork2_scull_trim_#t~nondet8#1|), 329#L930-4true, Black: 623#true, 474#L781-1true, thread2Thread1of1ForFork1InUse, 625#(= |#race~scull_quantum~0| 0), 601#(= |#race~i~0| 0), Black: 630#(= |#race~dev_quantum~0| |loaderThread1of1ForFork2_scull_trim_#t~nondet9#1|), Black: 599#true, 279#L722-6true, 636#(= |#race~scull_qset~0| 0)]) [2022-11-16 10:56:05,015 INFO L383 tUnfolder$Statistics]: this new event has 283 ancestors and is cut-off event [2022-11-16 10:56:05,015 INFO L386 tUnfolder$Statistics]: existing Event has 235 ancestors and is cut-off event [2022-11-16 10:56:05,015 INFO L386 tUnfolder$Statistics]: existing Event has 235 ancestors and is cut-off event [2022-11-16 10:56:05,015 INFO L386 tUnfolder$Statistics]: existing Event has 283 ancestors and is cut-off event [2022-11-16 10:56:05,103 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1642] L781-->L781-1: Formula: (= |v_#race~dev_quantum~0_13| 0) InVars {} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_13|} AuxVars[] AssignedVars[#race~dev_quantum~0][280], [553#L748-1true, Black: 613#(= |#race~dev_qset~0| 0), 628#true, Black: 619#(= |#race~dev_size~0| |loaderThread1of1ForFork2_scull_trim_#t~nondet8#1|), 329#L930-4true, Black: 623#true, 474#L781-1true, thread2Thread1of1ForFork1InUse, 495#L723true, 625#(= |#race~scull_quantum~0| 0), 601#(= |#race~i~0| 0), Black: 630#(= |#race~dev_quantum~0| |loaderThread1of1ForFork2_scull_trim_#t~nondet9#1|), Black: 599#true, 636#(= |#race~scull_qset~0| 0)]) [2022-11-16 10:56:05,103 INFO L383 tUnfolder$Statistics]: this new event has 284 ancestors and is cut-off event [2022-11-16 10:56:05,104 INFO L386 tUnfolder$Statistics]: existing Event has 236 ancestors and is cut-off event [2022-11-16 10:56:05,104 INFO L386 tUnfolder$Statistics]: existing Event has 236 ancestors and is cut-off event [2022-11-16 10:56:05,104 INFO L386 tUnfolder$Statistics]: existing Event has 284 ancestors and is cut-off event [2022-11-16 10:56:05,210 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1642] L781-->L781-1: Formula: (= |v_#race~dev_quantum~0_13| 0) InVars {} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_13|} AuxVars[] AssignedVars[#race~dev_quantum~0][280], [553#L748-1true, Black: 613#(= |#race~dev_qset~0| 0), 628#true, Black: 619#(= |#race~dev_size~0| |loaderThread1of1ForFork2_scull_trim_#t~nondet8#1|), 329#L930-4true, 474#L781-1true, Black: 623#true, thread2Thread1of1ForFork1InUse, 625#(= |#race~scull_quantum~0| 0), 601#(= |#race~i~0| 0), Black: 630#(= |#race~dev_quantum~0| |loaderThread1of1ForFork2_scull_trim_#t~nondet9#1|), Black: 599#true, 636#(= |#race~scull_qset~0| 0), 327#loaderENTRYtrue]) [2022-11-16 10:56:05,210 INFO L383 tUnfolder$Statistics]: this new event has 249 ancestors and is cut-off event [2022-11-16 10:56:05,211 INFO L386 tUnfolder$Statistics]: existing Event has 201 ancestors and is cut-off event [2022-11-16 10:56:05,211 INFO L386 tUnfolder$Statistics]: existing Event has 201 ancestors and is cut-off event [2022-11-16 10:56:05,211 INFO L386 tUnfolder$Statistics]: existing Event has 249 ancestors and is cut-off event