./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 8393723b 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_e84b3d68-f3ec-4802-beef-b732ffb18d46/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84b3d68-f3ec-4802-beef-b732ffb18d46/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84b3d68-f3ec-4802-beef-b732ffb18d46/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84b3d68-f3ec-4802-beef-b732ffb18d46/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/scull.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84b3d68-f3ec-4802-beef-b732ffb18d46/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84b3d68-f3ec-4802-beef-b732ffb18d46/bin/uautomizer-TMbwUNV5ro --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-8393723 [2022-11-18 18:35:08,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:35:08,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:35:08,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:35:08,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:35:08,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:35:09,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:35:09,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:35:09,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:35:09,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:35:09,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:35:09,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:35:09,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:35:09,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:35:09,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:35:09,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:35:09,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:35:09,037 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:35:09,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:35:09,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:35:09,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:35:09,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:35:09,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:35:09,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:35:09,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:35:09,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:35:09,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:35:09,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:35:09,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:35:09,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:35:09,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:35:09,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:35:09,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:35:09,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:35:09,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:35:09,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:35:09,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:35:09,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:35:09,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:35:09,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:35:09,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:35:09,071 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84b3d68-f3ec-4802-beef-b732ffb18d46/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 18:35:09,118 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:35:09,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:35:09,119 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:35:09,119 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:35:09,120 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:35:09,120 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:35:09,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:35:09,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:35:09,121 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:35:09,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:35:09,122 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:35:09,123 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:35:09,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:35:09,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:35:09,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:35:09,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:35:09,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:35:09,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:35:09,124 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 18:35:09,124 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:35:09,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:35:09,125 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:35:09,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:35:09,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:35:09,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:35:09,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:35:09,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:35:09,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:35:09,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:35:09,126 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:35:09,128 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:35:09,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:35:09,128 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:35:09,129 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:35:09,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:35:09,129 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_e84b3d68-f3ec-4802-beef-b732ffb18d46/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84b3d68-f3ec-4802-beef-b732ffb18d46/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa00f20131f5095ed14e7a46332bb5342dc26be5a17ecfa68bf5b51120e1579b [2022-11-18 18:35:09,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:35:09,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:35:09,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:35:09,439 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:35:09,440 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:35:09,442 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84b3d68-f3ec-4802-beef-b732ffb18d46/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-atomic/scull.i [2022-11-18 18:35:09,537 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84b3d68-f3ec-4802-beef-b732ffb18d46/bin/uautomizer-TMbwUNV5ro/data/76fe51638/9c2acf2f909c46438ec757ad949d0871/FLAG9019278ef [2022-11-18 18:35:10,117 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:35:10,117 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84b3d68-f3ec-4802-beef-b732ffb18d46/sv-benchmarks/c/pthread-atomic/scull.i [2022-11-18 18:35:10,130 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84b3d68-f3ec-4802-beef-b732ffb18d46/bin/uautomizer-TMbwUNV5ro/data/76fe51638/9c2acf2f909c46438ec757ad949d0871/FLAG9019278ef [2022-11-18 18:35:10,401 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84b3d68-f3ec-4802-beef-b732ffb18d46/bin/uautomizer-TMbwUNV5ro/data/76fe51638/9c2acf2f909c46438ec757ad949d0871 [2022-11-18 18:35:10,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:35:10,406 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:35:10,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:35:10,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:35:10,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:35:10,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:35:10" (1/1) ... [2022-11-18 18:35:10,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@735d9a46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:10, skipping insertion in model container [2022-11-18 18:35:10,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:35:10" (1/1) ... [2022-11-18 18:35:10,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:35:10,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:35:11,050 WARN L234 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_e84b3d68-f3ec-4802-beef-b732ffb18d46/sv-benchmarks/c/pthread-atomic/scull.i[30879,30892] [2022-11-18 18:35:11,069 WARN L234 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_e84b3d68-f3ec-4802-beef-b732ffb18d46/sv-benchmarks/c/pthread-atomic/scull.i[31740,31753] [2022-11-18 18:35:11,083 WARN L234 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_e84b3d68-f3ec-4802-beef-b732ffb18d46/sv-benchmarks/c/pthread-atomic/scull.i[32508,32521] [2022-11-18 18:35:11,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:35:11,145 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:35:11,199 WARN L234 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_e84b3d68-f3ec-4802-beef-b732ffb18d46/sv-benchmarks/c/pthread-atomic/scull.i[30879,30892] [2022-11-18 18:35:11,211 WARN L234 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_e84b3d68-f3ec-4802-beef-b732ffb18d46/sv-benchmarks/c/pthread-atomic/scull.i[31740,31753] [2022-11-18 18:35:11,216 WARN L234 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_e84b3d68-f3ec-4802-beef-b732ffb18d46/sv-benchmarks/c/pthread-atomic/scull.i[32508,32521] [2022-11-18 18:35:11,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:35:11,283 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:35:11,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:11 WrapperNode [2022-11-18 18:35:11,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:35:11,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:35:11,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:35:11,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:35:11,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:11" (1/1) ... [2022-11-18 18:35:11,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:11" (1/1) ... [2022-11-18 18:35:11,375 INFO L138 Inliner]: procedures = 185, calls = 66, calls flagged for inlining = 29, calls inlined = 25, statements flattened = 532 [2022-11-18 18:35:11,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:35:11,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:35:11,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:35:11,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:35:11,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:11" (1/1) ... [2022-11-18 18:35:11,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:11" (1/1) ... [2022-11-18 18:35:11,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:11" (1/1) ... [2022-11-18 18:35:11,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:11" (1/1) ... [2022-11-18 18:35:11,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:11" (1/1) ... [2022-11-18 18:35:11,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:11" (1/1) ... [2022-11-18 18:35:11,412 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:11" (1/1) ... [2022-11-18 18:35:11,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:11" (1/1) ... [2022-11-18 18:35:11,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:35:11,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:35:11,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:35:11,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:35:11,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:11" (1/1) ... [2022-11-18 18:35:11,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:35:11,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84b3d68-f3ec-4802-beef-b732ffb18d46/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:35:11,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84b3d68-f3ec-4802-beef-b732ffb18d46/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:35:11,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84b3d68-f3ec-4802-beef-b732ffb18d46/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:35:11,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:35:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 18:35:11,499 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 18:35:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 18:35:11,499 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 18:35:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:35:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 18:35:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:35:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure loader [2022-11-18 18:35:11,500 INFO L138 BoogieDeclarations]: Found implementation of procedure loader [2022-11-18 18:35:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:35:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:35:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:35:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:35:11,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:35:11,503 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 18:35:11,682 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:35:11,684 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:35:11,891 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L890: assume { :end_inline_scull_trim } true; [2022-11-18 18:35:11,892 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-1: assume -2147483648 <= scull_cleanup_module_#t~ret42#1 && scull_cleanup_module_#t~ret42#1 <= 2147483647; [2022-11-18 18:35:11,892 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-2: havoc scull_cleanup_module_#t~ret42#1; [2022-11-18 18:35:11,892 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L887: assume { :end_inline_scull_cleanup_module } true; [2022-11-18 18:35:11,892 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint scull_trim_returnLabel#1: scull_cleanup_module_#t~ret42#1 := scull_trim_#res#1; [2022-11-18 18:35:11,892 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L898: scull_init_module_#res#1 := scull_init_module_~result~0#1; [2022-11-18 18:35:12,532 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:35:12,546 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:35:12,547 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 18:35:12,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:35:12 BoogieIcfgContainer [2022-11-18 18:35:12,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:35:12,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:35:12,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:35:12,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:35:12,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:35:10" (1/3) ... [2022-11-18 18:35:12,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6cc5d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:35:12, skipping insertion in model container [2022-11-18 18:35:12,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:11" (2/3) ... [2022-11-18 18:35:12,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6cc5d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:35:12, skipping insertion in model container [2022-11-18 18:35:12,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:35:12" (3/3) ... [2022-11-18 18:35:12,562 INFO L112 eAbstractionObserver]: Analyzing ICFG scull.i [2022-11-18 18:35:12,576 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 18:35:12,589 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:35:12,590 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2022-11-18 18:35:12,590 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:35:12,819 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 18:35:12,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 596 places, 602 transitions, 1228 flow [2022-11-18 18:35:13,311 INFO L130 PetriNetUnfolder]: 16/599 cut-off events. [2022-11-18 18:35:13,311 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 18:35:13,339 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. [2022-11-18 18:35:13,339 INFO L82 GeneralOperation]: Start removeDead. Operand has 596 places, 602 transitions, 1228 flow [2022-11-18 18:35:13,356 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 581 places, 587 transitions, 1189 flow [2022-11-18 18:35:13,375 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:35:13,388 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;@2ebf1070, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:35:13,389 INFO L358 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2022-11-18 18:35:13,409 INFO L130 PetriNetUnfolder]: 0/90 cut-off events. [2022-11-18 18:35:13,409 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:35:13,410 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:35:13,411 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] [2022-11-18 18:35:13,412 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 18:35:13,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:13,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1666742556, now seen corresponding path program 1 times [2022-11-18 18:35:13,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:35:13,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008244082] [2022-11-18 18:35:13,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:13,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:35:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:35:13,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:35:13,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008244082] [2022-11-18 18:35:13,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008244082] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:35:13,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:35:13,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:35:13,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634752296] [2022-11-18 18:35:13,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:35:13,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:35:13,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:35:13,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:35:13,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:35:13,902 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 582 out of 602 [2022-11-18 18:35:13,933 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) [2022-11-18 18:35:13,933 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:35:13,934 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 582 of 602 [2022-11-18 18:35:13,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:35:15,009 INFO L130 PetriNetUnfolder]: 86/2461 cut-off events. [2022-11-18 18:35:15,009 INFO L131 PetriNetUnfolder]: For 45/49 co-relation queries the response was YES. [2022-11-18 18:35:15,050 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. [2022-11-18 18:35:15,071 INFO L137 encePairwiseOnDemand]: 594/602 looper letters, 11 selfloop transitions, 2 changer transitions 0/581 dead transitions. [2022-11-18 18:35:15,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 577 places, 581 transitions, 1209 flow [2022-11-18 18:35:15,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:35:15,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:35:15,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1765 transitions. [2022-11-18 18:35:15,101 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9772978959025471 [2022-11-18 18:35:15,103 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1765 transitions. [2022-11-18 18:35:15,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1765 transitions. [2022-11-18 18:35:15,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:35:15,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1765 transitions. [2022-11-18 18:35:15,121 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) [2022-11-18 18:35:15,133 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) [2022-11-18 18:35:15,135 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) [2022-11-18 18:35:15,137 INFO L175 Difference]: Start difference. First operand has 581 places, 587 transitions, 1189 flow. Second operand 3 states and 1765 transitions. [2022-11-18 18:35:15,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 577 places, 581 transitions, 1209 flow [2022-11-18 18:35:15,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 572 places, 581 transitions, 1197 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 18:35:15,165 INFO L231 Difference]: Finished difference. Result has 573 places, 579 transitions, 1174 flow [2022-11-18 18:35:15,168 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} [2022-11-18 18:35:15,175 INFO L288 CegarLoopForPetriNet]: 581 programPoint places, -8 predicate places. [2022-11-18 18:35:15,175 INFO L495 AbstractCegarLoop]: Abstraction has has 573 places, 579 transitions, 1174 flow [2022-11-18 18:35:15,177 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) [2022-11-18 18:35:15,177 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:35:15,177 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] [2022-11-18 18:35:15,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:35:15,179 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)] === [2022-11-18 18:35:15,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:15,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1007882261, now seen corresponding path program 1 times [2022-11-18 18:35:15,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:35:15,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835178274] [2022-11-18 18:35:15,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:15,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:35:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:35:16,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:35:16,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835178274] [2022-11-18 18:35:16,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835178274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:35:16,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:35:16,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:35:16,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868304647] [2022-11-18 18:35:16,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:35:16,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:35:16,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:35:16,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:35:16,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:35:16,084 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 564 out of 602 [2022-11-18 18:35:16,090 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) [2022-11-18 18:35:16,090 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:35:16,090 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 564 of 602 [2022-11-18 18:35:16,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:35:16,494 INFO L130 PetriNetUnfolder]: 19/784 cut-off events. [2022-11-18 18:35:16,494 INFO L131 PetriNetUnfolder]: For 2/24 co-relation queries the response was YES. [2022-11-18 18:35:16,515 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. [2022-11-18 18:35:16,523 INFO L137 encePairwiseOnDemand]: 597/602 looper letters, 22 selfloop transitions, 4 changer transitions 0/578 dead transitions. [2022-11-18 18:35:16,523 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 577 places, 578 transitions, 1224 flow [2022-11-18 18:35:16,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:35:16,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:35:16,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3411 transitions. [2022-11-18 18:35:16,530 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9443521594684385 [2022-11-18 18:35:16,530 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3411 transitions. [2022-11-18 18:35:16,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3411 transitions. [2022-11-18 18:35:16,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:35:16,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3411 transitions. [2022-11-18 18:35:16,540 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) [2022-11-18 18:35:16,547 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) [2022-11-18 18:35:16,549 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) [2022-11-18 18:35:16,550 INFO L175 Difference]: Start difference. First operand has 573 places, 579 transitions, 1174 flow. Second operand 6 states and 3411 transitions. [2022-11-18 18:35:16,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 577 places, 578 transitions, 1224 flow [2022-11-18 18:35:16,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 577 places, 578 transitions, 1224 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:35:16,562 INFO L231 Difference]: Finished difference. Result has 577 places, 578 transitions, 1180 flow [2022-11-18 18:35:16,563 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} [2022-11-18 18:35:16,564 INFO L288 CegarLoopForPetriNet]: 581 programPoint places, -4 predicate places. [2022-11-18 18:35:16,564 INFO L495 AbstractCegarLoop]: Abstraction has has 577 places, 578 transitions, 1180 flow [2022-11-18 18:35:16,566 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) [2022-11-18 18:35:16,567 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:35:16,567 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] [2022-11-18 18:35:16,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:35:16,568 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting loaderErr0ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 18:35:16,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:16,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1734008324, now seen corresponding path program 1 times [2022-11-18 18:35:16,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:35:16,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305647609] [2022-11-18 18:35:16,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:16,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:35:16,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:35:16,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:35:16,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305647609] [2022-11-18 18:35:16,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305647609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:35:16,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:35:16,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:35:16,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886776621] [2022-11-18 18:35:16,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:35:16,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:35:16,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:35:16,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:35:16,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:35:16,633 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 564 out of 602 [2022-11-18 18:35:16,636 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) [2022-11-18 18:35:16,636 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:35:16,638 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 564 of 602 [2022-11-18 18:35:16,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:35:24,265 INFO L130 PetriNetUnfolder]: 2904/30549 cut-off events. [2022-11-18 18:35:24,266 INFO L131 PetriNetUnfolder]: For 197/197 co-relation queries the response was YES. [2022-11-18 18:35:24,545 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. [2022-11-18 18:35:24,714 INFO L137 encePairwiseOnDemand]: 584/602 looper letters, 39 selfloop transitions, 13 changer transitions 0/601 dead transitions. [2022-11-18 18:35:24,715 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 579 places, 601 transitions, 1335 flow [2022-11-18 18:35:24,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:35:24,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:35:24,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1749 transitions. [2022-11-18 18:35:24,719 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.96843853820598 [2022-11-18 18:35:24,720 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1749 transitions. [2022-11-18 18:35:24,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1749 transitions. [2022-11-18 18:35:24,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:35:24,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1749 transitions. [2022-11-18 18:35:24,726 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) [2022-11-18 18:35:24,730 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) [2022-11-18 18:35:24,732 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) [2022-11-18 18:35:24,732 INFO L175 Difference]: Start difference. First operand has 577 places, 578 transitions, 1180 flow. Second operand 3 states and 1749 transitions. [2022-11-18 18:35:24,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 579 places, 601 transitions, 1335 flow [2022-11-18 18:35:24,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 575 places, 601 transitions, 1328 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 18:35:24,751 INFO L231 Difference]: Finished difference. Result has 577 places, 591 transitions, 1287 flow [2022-11-18 18:35:24,752 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} [2022-11-18 18:35:24,755 INFO L288 CegarLoopForPetriNet]: 581 programPoint places, -4 predicate places. [2022-11-18 18:35:24,755 INFO L495 AbstractCegarLoop]: Abstraction has has 577 places, 591 transitions, 1287 flow [2022-11-18 18:35:24,757 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) [2022-11-18 18:35:24,757 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:35:24,757 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] [2022-11-18 18:35:24,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:35:24,758 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting loaderErr1ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 18:35:24,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:24,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1354943877, now seen corresponding path program 1 times [2022-11-18 18:35:24,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:35:24,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177499674] [2022-11-18 18:35:24,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:24,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:35:24,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:24,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:35:24,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:35:24,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177499674] [2022-11-18 18:35:24,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177499674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:35:24,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:35:24,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:35:24,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257535131] [2022-11-18 18:35:24,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:35:24,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:35:24,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:35:24,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:35:24,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:35:24,851 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 561 out of 602 [2022-11-18 18:35:24,853 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) [2022-11-18 18:35:24,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:35:24,854 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 561 of 602 [2022-11-18 18:35:24,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:35:36,137 INFO L130 PetriNetUnfolder]: 6772/48504 cut-off events. [2022-11-18 18:35:36,137 INFO L131 PetriNetUnfolder]: For 1236/1286 co-relation queries the response was YES. [2022-11-18 18:35:36,653 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. [2022-11-18 18:35:36,928 INFO L137 encePairwiseOnDemand]: 591/602 looper letters, 47 selfloop transitions, 10 changer transitions 0/616 dead transitions. [2022-11-18 18:35:36,928 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 579 places, 616 transitions, 1454 flow [2022-11-18 18:35:36,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:35:36,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:35:36,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1741 transitions. [2022-11-18 18:35:36,935 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9640088593576965 [2022-11-18 18:35:36,937 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1741 transitions. [2022-11-18 18:35:36,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1741 transitions. [2022-11-18 18:35:36,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:35:36,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1741 transitions. [2022-11-18 18:35:36,944 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) [2022-11-18 18:35:36,948 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) [2022-11-18 18:35:36,950 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) [2022-11-18 18:35:36,950 INFO L175 Difference]: Start difference. First operand has 577 places, 591 transitions, 1287 flow. Second operand 3 states and 1741 transitions. [2022-11-18 18:35:36,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 579 places, 616 transitions, 1454 flow [2022-11-18 18:35:36,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 577 places, 616 transitions, 1428 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:35:36,979 INFO L231 Difference]: Finished difference. Result has 579 places, 600 transitions, 1339 flow [2022-11-18 18:35:36,980 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} [2022-11-18 18:35:36,983 INFO L288 CegarLoopForPetriNet]: 581 programPoint places, -2 predicate places. [2022-11-18 18:35:36,983 INFO L495 AbstractCegarLoop]: Abstraction has has 579 places, 600 transitions, 1339 flow [2022-11-18 18:35:36,985 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) [2022-11-18 18:35:36,985 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:35:36,985 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] [2022-11-18 18:35:36,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:35:36,986 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting loaderErr2ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 18:35:36,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:36,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1031730497, now seen corresponding path program 1 times [2022-11-18 18:35:36,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:35:36,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863756826] [2022-11-18 18:35:36,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:36,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:35:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:37,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:35:37,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:35:37,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863756826] [2022-11-18 18:35:37,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863756826] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:35:37,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:35:37,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:35:37,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123579002] [2022-11-18 18:35:37,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:35:37,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:35:37,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:35:37,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:35:37,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:35:37,074 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 579 out of 602 [2022-11-18 18:35:37,077 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) [2022-11-18 18:35:37,078 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:35:37,078 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 579 of 602 [2022-11-18 18:35:37,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:35:45,340 INFO L130 PetriNetUnfolder]: 3140/41897 cut-off events. [2022-11-18 18:35:45,341 INFO L131 PetriNetUnfolder]: For 500/567 co-relation queries the response was YES. [2022-11-18 18:35:45,732 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. [2022-11-18 18:35:45,932 INFO L137 encePairwiseOnDemand]: 596/602 looper letters, 13 selfloop transitions, 3 changer transitions 0/602 dead transitions. [2022-11-18 18:35:45,933 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 578 places, 602 transitions, 1378 flow [2022-11-18 18:35:45,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:35:45,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:35:45,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1756 transitions. [2022-11-18 18:35:45,937 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9723145071982281 [2022-11-18 18:35:45,937 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1756 transitions. [2022-11-18 18:35:45,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1756 transitions. [2022-11-18 18:35:45,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:35:45,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1756 transitions. [2022-11-18 18:35:45,943 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) [2022-11-18 18:35:45,947 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) [2022-11-18 18:35:45,949 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) [2022-11-18 18:35:45,949 INFO L175 Difference]: Start difference. First operand has 579 places, 600 transitions, 1339 flow. Second operand 3 states and 1756 transitions. [2022-11-18 18:35:45,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 578 places, 602 transitions, 1378 flow [2022-11-18 18:35:45,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 576 places, 602 transitions, 1358 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:35:45,979 INFO L231 Difference]: Finished difference. Result has 577 places, 600 transitions, 1334 flow [2022-11-18 18:35:45,980 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} [2022-11-18 18:35:45,981 INFO L288 CegarLoopForPetriNet]: 581 programPoint places, -4 predicate places. [2022-11-18 18:35:45,981 INFO L495 AbstractCegarLoop]: Abstraction has has 577 places, 600 transitions, 1334 flow [2022-11-18 18:35:45,982 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) [2022-11-18 18:35:45,983 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:35:45,983 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] [2022-11-18 18:35:45,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:35:45,983 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting loaderErr3ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 18:35:45,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:45,985 INFO L85 PathProgramCache]: Analyzing trace with hash -787774780, now seen corresponding path program 1 times [2022-11-18 18:35:45,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:35:45,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515543485] [2022-11-18 18:35:45,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:45,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:35:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:46,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:35:46,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:35:46,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515543485] [2022-11-18 18:35:46,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515543485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:35:46,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:35:46,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:35:46,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936170486] [2022-11-18 18:35:46,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:35:46,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:35:46,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:35:46,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:35:46,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:35:46,042 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 570 out of 602 [2022-11-18 18:35:46,044 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) [2022-11-18 18:35:46,044 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:35:46,044 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 570 of 602 [2022-11-18 18:35:46,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:36:00,718 INFO L130 PetriNetUnfolder]: 7756/74663 cut-off events. [2022-11-18 18:36:00,718 INFO L131 PetriNetUnfolder]: For 303/305 co-relation queries the response was YES. [2022-11-18 18:36:01,492 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. [2022-11-18 18:36:01,847 INFO L137 encePairwiseOnDemand]: 594/602 looper letters, 32 selfloop transitions, 7 changer transitions 0/616 dead transitions. [2022-11-18 18:36:01,847 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 579 places, 616 transitions, 1447 flow [2022-11-18 18:36:01,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:36:01,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:36:01,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1750 transitions. [2022-11-18 18:36:01,854 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9689922480620154 [2022-11-18 18:36:01,854 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1750 transitions. [2022-11-18 18:36:01,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1750 transitions. [2022-11-18 18:36:01,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:36:01,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1750 transitions. [2022-11-18 18:36:01,861 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) [2022-11-18 18:36:01,866 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) [2022-11-18 18:36:01,867 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) [2022-11-18 18:36:01,867 INFO L175 Difference]: Start difference. First operand has 577 places, 600 transitions, 1334 flow. Second operand 3 states and 1750 transitions. [2022-11-18 18:36:01,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 579 places, 616 transitions, 1447 flow [2022-11-18 18:36:01,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 579 places, 616 transitions, 1447 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:36:01,882 INFO L231 Difference]: Finished difference. Result has 581 places, 606 transitions, 1388 flow [2022-11-18 18:36:01,884 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} [2022-11-18 18:36:01,884 INFO L288 CegarLoopForPetriNet]: 581 programPoint places, 0 predicate places. [2022-11-18 18:36:01,885 INFO L495 AbstractCegarLoop]: Abstraction has has 581 places, 606 transitions, 1388 flow [2022-11-18 18:36:01,886 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) [2022-11-18 18:36:01,886 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:36:01,886 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] [2022-11-18 18:36:01,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:36:01,887 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting loaderErr4ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-18 18:36:01,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:36:01,887 INFO L85 PathProgramCache]: Analyzing trace with hash -895818101, now seen corresponding path program 1 times [2022-11-18 18:36:01,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:36:01,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551731097] [2022-11-18 18:36:01,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:36:01,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:36:01,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:01,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:01,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:36:01,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551731097] [2022-11-18 18:36:01,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551731097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:36:01,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:36:01,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:36:01,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608671080] [2022-11-18 18:36:01,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:36:01,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:36:01,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:36:01,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:36:01,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:36:01,951 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 579 out of 602 [2022-11-18 18:36:01,961 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) [2022-11-18 18:36:01,962 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:36:01,962 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 579 of 602 [2022-11-18 18:36:01,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand