./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/fib_unsafe-12-racy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 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_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/fib_unsafe-12-racy.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8 --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 c4525591fa85ffc9750f318a48c09fdd29dc0d26cd65c6303a681f57303fc1a4 --- 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-2329fc7 [2022-12-13 20:08:50,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:08:50,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:08:50,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:08:50,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:08:50,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:08:50,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:08:50,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:08:50,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:08:50,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:08:50,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:08:50,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:08:50,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:08:50,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:08:50,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:08:50,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:08:50,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:08:50,222 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:08:50,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:08:50,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:08:50,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:08:50,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:08:50,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:08:50,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:08:50,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:08:50,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:08:50,233 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:08:50,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:08:50,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:08:50,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:08:50,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:08:50,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:08:50,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:08:50,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:08:50,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:08:50,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:08:50,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:08:50,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:08:50,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:08:50,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:08:50,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:08:50,241 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 20:08:50,260 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:08:50,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:08:50,261 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:08:50,261 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:08:50,262 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:08:50,262 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:08:50,263 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:08:50,263 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:08:50,263 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:08:50,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:08:50,263 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:08:50,263 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:08:50,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:08:50,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:08:50,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:08:50,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:08:50,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:08:50,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:08:50,264 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 20:08:50,265 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:08:50,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:08:50,265 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:08:50,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:08:50,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:08:50,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:08:50,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:08:50,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:08:50,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:08:50,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:08:50,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:08:50,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:08:50,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:08:50,267 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:08:50,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:08:50,267 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:08:50,267 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:08:50,267 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:08:50,267 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4525591fa85ffc9750f318a48c09fdd29dc0d26cd65c6303a681f57303fc1a4 [2022-12-13 20:08:50,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:08:50,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:08:50,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:08:50,464 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:08:50,464 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:08:50,465 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread/fib_unsafe-12-racy.i [2022-12-13 20:08:53,044 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:08:53,220 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:08:53,221 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/sv-benchmarks/c/pthread/fib_unsafe-12-racy.i [2022-12-13 20:08:53,230 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/data/af9213367/67c089ede9b94a938fe41ad27f085ffd/FLAG0eb827651 [2022-12-13 20:08:53,240 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/data/af9213367/67c089ede9b94a938fe41ad27f085ffd [2022-12-13 20:08:53,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:08:53,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:08:53,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:08:53,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:08:53,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:08:53,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:08:53" (1/1) ... [2022-12-13 20:08:53,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52b54841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:08:53, skipping insertion in model container [2022-12-13 20:08:53,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:08:53" (1/1) ... [2022-12-13 20:08:53,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:08:53,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:08:53,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:08:53,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:08:53,480 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:08:53,481 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:08:53,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:08:53,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:08:53,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:08:53,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:08:53,490 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/sv-benchmarks/c/pthread/fib_unsafe-12-racy.i[30813,30826] [2022-12-13 20:08:53,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:08:53,498 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:08:53,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:08:53,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:08:53,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:08:53,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:08:53,528 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:08:53,529 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:08:53,529 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:08:53,529 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:08:53,530 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/sv-benchmarks/c/pthread/fib_unsafe-12-racy.i[30813,30826] [2022-12-13 20:08:53,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:08:53,550 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:08:53,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:08:53 WrapperNode [2022-12-13 20:08:53,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:08:53,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:08:53,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:08:53,552 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:08:53,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:08:53" (1/1) ... [2022-12-13 20:08:53,567 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:08:53" (1/1) ... [2022-12-13 20:08:53,582 INFO L138 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 122 [2022-12-13 20:08:53,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:08:53,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:08:53,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:08:53,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:08:53,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:08:53" (1/1) ... [2022-12-13 20:08:53,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:08:53" (1/1) ... [2022-12-13 20:08:53,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:08:53" (1/1) ... [2022-12-13 20:08:53,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:08:53" (1/1) ... [2022-12-13 20:08:53,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:08:53" (1/1) ... [2022-12-13 20:08:53,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:08:53" (1/1) ... [2022-12-13 20:08:53,600 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:08:53" (1/1) ... [2022-12-13 20:08:53,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:08:53" (1/1) ... [2022-12-13 20:08:53,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:08:53,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:08:53,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:08:53,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:08:53,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:08:53" (1/1) ... [2022-12-13 20:08:53,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:08:53,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:08:53,629 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:08:53,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:08:53,662 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-13 20:08:53,662 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-13 20:08:53,662 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-13 20:08:53,662 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-13 20:08:53,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 20:08:53,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 20:08:53,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:08:53,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:08:53,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:08:53,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:08:53,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 20:08:53,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:08:53,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:08:53,665 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 20:08:53,766 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:08:53,767 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:08:53,984 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:08:54,027 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:08:54,028 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-13 20:08:54,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:08:54 BoogieIcfgContainer [2022-12-13 20:08:54,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:08:54,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:08:54,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:08:54,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:08:54,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:08:53" (1/3) ... [2022-12-13 20:08:54,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e415397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:08:54, skipping insertion in model container [2022-12-13 20:08:54,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:08:53" (2/3) ... [2022-12-13 20:08:54,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e415397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:08:54, skipping insertion in model container [2022-12-13 20:08:54,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:08:54" (3/3) ... [2022-12-13 20:08:54,043 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_unsafe-12-racy.i [2022-12-13 20:08:54,050 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 20:08:54,057 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:08:54,058 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-12-13 20:08:54,058 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 20:08:54,110 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 20:08:54,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 193 transitions, 396 flow [2022-12-13 20:08:54,211 INFO L130 PetriNetUnfolder]: 8/191 cut-off events. [2022-12-13 20:08:54,211 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:08:54,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 191 events. 8/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 367 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 159. Up to 2 conditions per place. [2022-12-13 20:08:54,218 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 193 transitions, 396 flow [2022-12-13 20:08:54,224 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 191 transitions, 388 flow [2022-12-13 20:08:54,227 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 20:08:54,238 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 190 places, 191 transitions, 388 flow [2022-12-13 20:08:54,241 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 190 places, 191 transitions, 388 flow [2022-12-13 20:08:54,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 191 transitions, 388 flow [2022-12-13 20:08:54,277 INFO L130 PetriNetUnfolder]: 8/191 cut-off events. [2022-12-13 20:08:54,278 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:08:54,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 191 events. 8/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 367 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 159. Up to 2 conditions per place. [2022-12-13 20:08:54,284 INFO L119 LiptonReduction]: Number of co-enabled transitions 13080 [2022-12-13 20:08:57,109 INFO L134 LiptonReduction]: Checked pairs total: 14720 [2022-12-13 20:08:57,110 INFO L136 LiptonReduction]: Total number of compositions: 215 [2022-12-13 20:08:57,120 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:08:57,125 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;@1fd2bf2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:08:57,125 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2022-12-13 20:08:57,126 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 20:08:57,126 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:08:57,126 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:08:57,126 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 20:08:57,127 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-12-13 20:08:57,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:08:57,130 INFO L85 PathProgramCache]: Analyzing trace with hash 785, now seen corresponding path program 1 times [2022-12-13 20:08:57,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:08:57,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333524657] [2022-12-13 20:08:57,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:08:57,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:08:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:08:57,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:08:57,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:08:57,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333524657] [2022-12-13 20:08:57,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333524657] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:08:57,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:08:57,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 20:08:57,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820981841] [2022-12-13 20:08:57,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:08:57,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 20:08:57,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:08:57,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 20:08:57,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 20:08:57,245 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 408 [2022-12-13 20:08:57,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 49 transitions, 104 flow. Second operand has 2 states, 2 states have (on average 174.5) internal successors, (349), 2 states have internal predecessors, (349), 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) [2022-12-13 20:08:57,248 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:08:57,248 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 408 [2022-12-13 20:08:57,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:08:57,297 INFO L130 PetriNetUnfolder]: 97/194 cut-off events. [2022-12-13 20:08:57,297 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 20:08:57,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 194 events. 97/194 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 613 event pairs, 56 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 345. Up to 150 conditions per place. [2022-12-13 20:08:57,300 INFO L137 encePairwiseOnDemand]: 379/408 looper letters, 14 selfloop transitions, 0 changer transitions 1/20 dead transitions. [2022-12-13 20:08:57,300 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 76 flow [2022-12-13 20:08:57,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 20:08:57,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 20:08:57,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 392 transitions. [2022-12-13 20:08:57,314 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4803921568627451 [2022-12-13 20:08:57,315 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 392 transitions. [2022-12-13 20:08:57,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 392 transitions. [2022-12-13 20:08:57,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:08:57,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 392 transitions. [2022-12-13 20:08:57,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 196.0) internal successors, (392), 2 states have internal predecessors, (392), 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) [2022-12-13 20:08:57,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 408.0) internal successors, (1224), 3 states have internal predecessors, (1224), 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) [2022-12-13 20:08:57,327 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 408.0) internal successors, (1224), 3 states have internal predecessors, (1224), 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) [2022-12-13 20:08:57,328 INFO L175 Difference]: Start difference. First operand has 52 places, 49 transitions, 104 flow. Second operand 2 states and 392 transitions. [2022-12-13 20:08:57,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 76 flow [2022-12-13 20:08:57,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 20 transitions, 74 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 20:08:57,332 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 42 flow [2022-12-13 20:08:57,334 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=42, PETRI_PLACES=23, PETRI_TRANSITIONS=19} [2022-12-13 20:08:57,336 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -29 predicate places. [2022-12-13 20:08:57,337 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 42 flow [2022-12-13 20:08:57,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 174.5) internal successors, (349), 2 states have internal predecessors, (349), 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) [2022-12-13 20:08:57,337 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:08:57,337 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:08:57,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:08:57,338 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-12-13 20:08:57,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:08:57,339 INFO L85 PathProgramCache]: Analyzing trace with hash 796359508, now seen corresponding path program 1 times [2022-12-13 20:08:57,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:08:57,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704646402] [2022-12-13 20:08:57,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:08:57,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:08:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:08:57,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:08:57,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:08:57,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704646402] [2022-12-13 20:08:57,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704646402] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:08:57,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:08:57,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:08:57,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715899085] [2022-12-13 20:08:57,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:08:57,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:08:57,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:08:57,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:08:57,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:08:57,485 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 408 [2022-12-13 20:08:57,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 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) [2022-12-13 20:08:57,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:08:57,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 408 [2022-12-13 20:08:57,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:08:57,527 INFO L130 PetriNetUnfolder]: 97/194 cut-off events. [2022-12-13 20:08:57,527 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:08:57,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 194 events. 97/194 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 604 event pairs, 20 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 351. Up to 91 conditions per place. [2022-12-13 20:08:57,528 INFO L137 encePairwiseOnDemand]: 405/408 looper letters, 19 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2022-12-13 20:08:57,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 26 transitions, 98 flow [2022-12-13 20:08:57,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:08:57,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:08:57,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 532 transitions. [2022-12-13 20:08:57,530 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.434640522875817 [2022-12-13 20:08:57,531 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 532 transitions. [2022-12-13 20:08:57,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 532 transitions. [2022-12-13 20:08:57,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:08:57,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 532 transitions. [2022-12-13 20:08:57,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 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) [2022-12-13 20:08:57,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 408.0) internal successors, (1632), 4 states have internal predecessors, (1632), 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) [2022-12-13 20:08:57,534 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 408.0) internal successors, (1632), 4 states have internal predecessors, (1632), 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) [2022-12-13 20:08:57,534 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 42 flow. Second operand 3 states and 532 transitions. [2022-12-13 20:08:57,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 26 transitions, 98 flow [2022-12-13 20:08:57,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 26 transitions, 98 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 20:08:57,535 INFO L231 Difference]: Finished difference. Result has 25 places, 20 transitions, 54 flow [2022-12-13 20:08:57,535 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=25, PETRI_TRANSITIONS=20} [2022-12-13 20:08:57,536 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -27 predicate places. [2022-12-13 20:08:57,536 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 20 transitions, 54 flow [2022-12-13 20:08:57,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 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) [2022-12-13 20:08:57,536 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:08:57,537 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:08:57,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:08:57,537 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-12-13 20:08:57,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:08:57,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1082632746, now seen corresponding path program 1 times [2022-12-13 20:08:57,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:08:57,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884695388] [2022-12-13 20:08:57,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:08:57,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:08:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:08:57,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:08:57,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:08:57,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884695388] [2022-12-13 20:08:57,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884695388] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:08:57,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829751827] [2022-12-13 20:08:57,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:08:57,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:08:57,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:08:57,596 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:08:57,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 20:08:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:08:57,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 20:08:57,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:08:57,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 20:08:57,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:08:57,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829751827] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:08:57,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:08:57,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-13 20:08:57,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352691123] [2022-12-13 20:08:57,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:08:57,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:08:57,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:08:57,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:08:57,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:08:57,681 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 408 [2022-12-13 20:08:57,682 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 20 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 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) [2022-12-13 20:08:57,682 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:08:57,683 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 408 [2022-12-13 20:08:57,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:08:57,740 INFO L130 PetriNetUnfolder]: 203/337 cut-off events. [2022-12-13 20:08:57,740 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-12-13 20:08:57,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 721 conditions, 337 events. 203/337 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1094 event pairs, 51 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 716. Up to 156 conditions per place. [2022-12-13 20:08:57,743 INFO L137 encePairwiseOnDemand]: 403/408 looper letters, 25 selfloop transitions, 4 changer transitions 0/32 dead transitions. [2022-12-13 20:08:57,743 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 32 transitions, 143 flow [2022-12-13 20:08:57,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:08:57,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:08:57,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 541 transitions. [2022-12-13 20:08:57,746 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44199346405228757 [2022-12-13 20:08:57,746 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 541 transitions. [2022-12-13 20:08:57,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 541 transitions. [2022-12-13 20:08:57,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:08:57,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 541 transitions. [2022-12-13 20:08:57,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 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) [2022-12-13 20:08:57,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 408.0) internal successors, (1632), 4 states have internal predecessors, (1632), 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) [2022-12-13 20:08:57,750 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 408.0) internal successors, (1632), 4 states have internal predecessors, (1632), 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) [2022-12-13 20:08:57,750 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 54 flow. Second operand 3 states and 541 transitions. [2022-12-13 20:08:57,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 32 transitions, 143 flow [2022-12-13 20:08:57,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 32 transitions, 140 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:08:57,751 INFO L231 Difference]: Finished difference. Result has 28 places, 24 transitions, 88 flow [2022-12-13 20:08:57,751 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=28, PETRI_TRANSITIONS=24} [2022-12-13 20:08:57,752 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -24 predicate places. [2022-12-13 20:08:57,752 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 24 transitions, 88 flow [2022-12-13 20:08:57,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 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) [2022-12-13 20:08:57,758 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:08:57,758 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:08:57,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 20:08:57,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-12-13 20:08:57,959 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-12-13 20:08:57,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:08:57,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1331487709, now seen corresponding path program 1 times [2022-12-13 20:08:57,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:08:57,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075996720] [2022-12-13 20:08:57,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:08:57,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:08:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:08:58,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:08:58,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:08:58,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075996720] [2022-12-13 20:08:58,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075996720] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:08:58,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868145639] [2022-12-13 20:08:58,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:08:58,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:08:58,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:08:58,116 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:08:58,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 20:08:58,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:08:58,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 20:08:58,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:08:58,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:08:58,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:08:58,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:08:58,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868145639] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:08:58,216 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:08:58,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-12-13 20:08:58,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873412572] [2022-12-13 20:08:58,217 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:08:58,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:08:58,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:08:58,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:08:58,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:08:58,232 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 408 [2022-12-13 20:08:58,233 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 24 transitions, 88 flow. Second operand has 7 states, 7 states have (on average 171.0) internal successors, (1197), 7 states have internal predecessors, (1197), 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) [2022-12-13 20:08:58,233 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:08:58,233 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 408 [2022-12-13 20:08:58,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:08:58,334 INFO L130 PetriNetUnfolder]: 271/447 cut-off events. [2022-12-13 20:08:58,334 INFO L131 PetriNetUnfolder]: For 199/202 co-relation queries the response was YES. [2022-12-13 20:08:58,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1158 conditions, 447 events. 271/447 cut-off events. For 199/202 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1413 event pairs, 42 based on Foata normal form. 45/479 useless extension candidates. Maximal degree in co-relation 1152. Up to 182 conditions per place. [2022-12-13 20:08:58,337 INFO L137 encePairwiseOnDemand]: 405/408 looper letters, 48 selfloop transitions, 5 changer transitions 0/59 dead transitions. [2022-12-13 20:08:58,338 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 59 transitions, 318 flow [2022-12-13 20:08:58,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:08:58,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:08:58,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1059 transitions. [2022-12-13 20:08:58,341 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4325980392156863 [2022-12-13 20:08:58,341 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1059 transitions. [2022-12-13 20:08:58,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1059 transitions. [2022-12-13 20:08:58,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:08:58,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1059 transitions. [2022-12-13 20:08:58,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 176.5) internal successors, (1059), 6 states have internal predecessors, (1059), 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) [2022-12-13 20:08:58,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 408.0) internal successors, (2856), 7 states have internal predecessors, (2856), 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) [2022-12-13 20:08:58,350 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 408.0) internal successors, (2856), 7 states have internal predecessors, (2856), 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) [2022-12-13 20:08:58,350 INFO L175 Difference]: Start difference. First operand has 28 places, 24 transitions, 88 flow. Second operand 6 states and 1059 transitions. [2022-12-13 20:08:58,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 59 transitions, 318 flow [2022-12-13 20:08:58,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 59 transitions, 294 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 20:08:58,353 INFO L231 Difference]: Finished difference. Result has 34 places, 27 transitions, 122 flow [2022-12-13 20:08:58,353 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=122, PETRI_PLACES=34, PETRI_TRANSITIONS=27} [2022-12-13 20:08:58,354 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -18 predicate places. [2022-12-13 20:08:58,354 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 122 flow [2022-12-13 20:08:58,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 171.0) internal successors, (1197), 7 states have internal predecessors, (1197), 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) [2022-12-13 20:08:58,355 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:08:58,355 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:08:58,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 20:08:58,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:08:58,556 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-12-13 20:08:58,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:08:58,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1465911661, now seen corresponding path program 2 times [2022-12-13 20:08:58,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:08:58,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749268806] [2022-12-13 20:08:58,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:08:58,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:08:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:08:58,653 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:08:58,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:08:58,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749268806] [2022-12-13 20:08:58,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749268806] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:08:58,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627713200] [2022-12-13 20:08:58,654 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 20:08:58,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:08:58,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:08:58,655 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:08:58,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 20:08:58,712 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 20:08:58,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 20:08:58,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 20:08:58,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:08:58,727 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:08:58,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:08:58,760 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:08:58,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627713200] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:08:58,761 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:08:58,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-12-13 20:08:58,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835653257] [2022-12-13 20:08:58,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:08:58,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:08:58,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:08:58,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:08:58,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:08:58,780 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 408 [2022-12-13 20:08:58,784 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 122 flow. Second operand has 13 states, 13 states have (on average 170.53846153846155) internal successors, (2217), 13 states have internal predecessors, (2217), 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) [2022-12-13 20:08:58,784 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:08:58,784 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 408 [2022-12-13 20:08:58,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:08:58,938 INFO L130 PetriNetUnfolder]: 451/717 cut-off events. [2022-12-13 20:08:58,938 INFO L131 PetriNetUnfolder]: For 800/803 co-relation queries the response was YES. [2022-12-13 20:08:58,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2052 conditions, 717 events. 451/717 cut-off events. For 800/803 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2205 event pairs, 42 based on Foata normal form. 90/791 useless extension candidates. Maximal degree in co-relation 2043. Up to 182 conditions per place. [2022-12-13 20:08:58,941 INFO L137 encePairwiseOnDemand]: 405/408 looper letters, 96 selfloop transitions, 11 changer transitions 0/113 dead transitions. [2022-12-13 20:08:58,942 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 113 transitions, 612 flow [2022-12-13 20:08:58,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 20:08:58,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 20:08:58,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2118 transitions. [2022-12-13 20:08:58,945 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4325980392156863 [2022-12-13 20:08:58,945 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2118 transitions. [2022-12-13 20:08:58,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2118 transitions. [2022-12-13 20:08:58,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:08:58,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2118 transitions. [2022-12-13 20:08:58,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 176.5) internal successors, (2118), 12 states have internal predecessors, (2118), 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) [2022-12-13 20:08:58,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 408.0) internal successors, (5304), 13 states have internal predecessors, (5304), 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) [2022-12-13 20:08:58,954 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 408.0) internal successors, (5304), 13 states have internal predecessors, (5304), 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) [2022-12-13 20:08:58,954 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 122 flow. Second operand 12 states and 2118 transitions. [2022-12-13 20:08:58,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 113 transitions, 612 flow [2022-12-13 20:08:58,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 113 transitions, 598 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-12-13 20:08:58,958 INFO L231 Difference]: Finished difference. Result has 50 places, 33 transitions, 204 flow [2022-12-13 20:08:58,958 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=204, PETRI_PLACES=50, PETRI_TRANSITIONS=33} [2022-12-13 20:08:58,958 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -2 predicate places. [2022-12-13 20:08:58,958 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 33 transitions, 204 flow [2022-12-13 20:08:58,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 170.53846153846155) internal successors, (2217), 13 states have internal predecessors, (2217), 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) [2022-12-13 20:08:58,959 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:08:58,959 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:08:58,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 20:08:59,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:08:59,160 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-12-13 20:08:59,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:08:59,161 INFO L85 PathProgramCache]: Analyzing trace with hash 333058643, now seen corresponding path program 3 times [2022-12-13 20:08:59,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:08:59,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131173278] [2022-12-13 20:08:59,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:08:59,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:08:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:08:59,314 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:08:59,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:08:59,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131173278] [2022-12-13 20:08:59,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131173278] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:08:59,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989851882] [2022-12-13 20:08:59,315 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 20:08:59,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:08:59,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:08:59,316 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:08:59,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 20:08:59,392 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-12-13 20:08:59,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 20:08:59,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 20:08:59,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:08:59,416 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:08:59,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:08:59,553 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:08:59,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989851882] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:08:59,553 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:08:59,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-12-13 20:08:59,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037820900] [2022-12-13 20:08:59,554 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:08:59,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-13 20:08:59,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:08:59,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-13 20:08:59,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-12-13 20:08:59,592 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 408 [2022-12-13 20:08:59,596 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 33 transitions, 204 flow. Second operand has 25 states, 25 states have (on average 170.28) internal successors, (4257), 25 states have internal predecessors, (4257), 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) [2022-12-13 20:08:59,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:08:59,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 408 [2022-12-13 20:08:59,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:08:59,908 INFO L130 PetriNetUnfolder]: 811/1257 cut-off events. [2022-12-13 20:08:59,908 INFO L131 PetriNetUnfolder]: For 9032/9035 co-relation queries the response was YES. [2022-12-13 20:08:59,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4066 conditions, 1257 events. 811/1257 cut-off events. For 9032/9035 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3798 event pairs, 42 based on Foata normal form. 180/1421 useless extension candidates. Maximal degree in co-relation 4050. Up to 316 conditions per place. [2022-12-13 20:08:59,914 INFO L137 encePairwiseOnDemand]: 405/408 looper letters, 192 selfloop transitions, 23 changer transitions 0/221 dead transitions. [2022-12-13 20:08:59,914 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 221 transitions, 1258 flow [2022-12-13 20:08:59,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 20:08:59,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-12-13 20:08:59,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4236 transitions. [2022-12-13 20:08:59,920 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4325980392156863 [2022-12-13 20:08:59,920 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4236 transitions. [2022-12-13 20:08:59,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4236 transitions. [2022-12-13 20:08:59,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:08:59,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4236 transitions. [2022-12-13 20:08:59,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 176.5) internal successors, (4236), 24 states have internal predecessors, (4236), 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) [2022-12-13 20:08:59,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 408.0) internal successors, (10200), 25 states have internal predecessors, (10200), 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) [2022-12-13 20:08:59,938 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 408.0) internal successors, (10200), 25 states have internal predecessors, (10200), 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) [2022-12-13 20:08:59,938 INFO L175 Difference]: Start difference. First operand has 50 places, 33 transitions, 204 flow. Second operand 24 states and 4236 transitions. [2022-12-13 20:08:59,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 221 transitions, 1258 flow [2022-12-13 20:08:59,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 221 transitions, 1186 flow, removed 31 selfloop flow, removed 5 redundant places. [2022-12-13 20:08:59,947 INFO L231 Difference]: Finished difference. Result has 80 places, 45 transitions, 348 flow [2022-12-13 20:08:59,947 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=348, PETRI_PLACES=80, PETRI_TRANSITIONS=45} [2022-12-13 20:08:59,948 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 28 predicate places. [2022-12-13 20:08:59,948 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 45 transitions, 348 flow [2022-12-13 20:08:59,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 170.28) internal successors, (4257), 25 states have internal predecessors, (4257), 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) [2022-12-13 20:08:59,950 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:08:59,950 INFO L209 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:08:59,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 20:09:00,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-13 20:09:00,151 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-12-13 20:09:00,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:09:00,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1196500525, now seen corresponding path program 4 times [2022-12-13 20:09:00,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:09:00,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581872209] [2022-12-13 20:09:00,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:09:00,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:09:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:09:00,501 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:09:00,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:09:00,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581872209] [2022-12-13 20:09:00,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581872209] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:09:00,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757719339] [2022-12-13 20:09:00,501 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 20:09:00,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:09:00,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:09:00,502 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:09:00,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 20:09:00,600 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 20:09:00,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 20:09:00,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-13 20:09:00,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:09:00,646 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:09:00,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:09:00,877 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:09:00,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757719339] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:09:00,878 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:09:00,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 29 [2022-12-13 20:09:00,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056213512] [2022-12-13 20:09:00,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:09:00,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-13 20:09:00,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:09:00,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-13 20:09:00,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2022-12-13 20:09:00,912 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 408 [2022-12-13 20:09:00,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 45 transitions, 348 flow. Second operand has 29 states, 29 states have (on average 170.27586206896552) internal successors, (4938), 29 states have internal predecessors, (4938), 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) [2022-12-13 20:09:00,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:09:00,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 408 [2022-12-13 20:09:00,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:09:01,294 INFO L130 PetriNetUnfolder]: 931/1437 cut-off events. [2022-12-13 20:09:01,295 INFO L131 PetriNetUnfolder]: For 17446/17449 co-relation queries the response was YES. [2022-12-13 20:09:01,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4842 conditions, 1437 events. 931/1437 cut-off events. For 17446/17449 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4324 event pairs, 42 based on Foata normal form. 60/1481 useless extension candidates. Maximal degree in co-relation 4814. Up to 313 conditions per place. [2022-12-13 20:09:01,302 INFO L137 encePairwiseOnDemand]: 405/408 looper letters, 224 selfloop transitions, 27 changer transitions 0/257 dead transitions. [2022-12-13 20:09:01,302 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 257 transitions, 1506 flow [2022-12-13 20:09:01,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-13 20:09:01,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-12-13 20:09:01,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4932 transitions. [2022-12-13 20:09:01,310 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4317226890756303 [2022-12-13 20:09:01,311 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 4932 transitions. [2022-12-13 20:09:01,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 4932 transitions. [2022-12-13 20:09:01,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:09:01,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 4932 transitions. [2022-12-13 20:09:01,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 176.14285714285714) internal successors, (4932), 28 states have internal predecessors, (4932), 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) [2022-12-13 20:09:01,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 408.0) internal successors, (11832), 29 states have internal predecessors, (11832), 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) [2022-12-13 20:09:01,331 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 408.0) internal successors, (11832), 29 states have internal predecessors, (11832), 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) [2022-12-13 20:09:01,331 INFO L175 Difference]: Start difference. First operand has 80 places, 45 transitions, 348 flow. Second operand 28 states and 4932 transitions. [2022-12-13 20:09:01,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 257 transitions, 1506 flow [2022-12-13 20:09:01,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 257 transitions, 1402 flow, removed 41 selfloop flow, removed 11 redundant places. [2022-12-13 20:09:01,340 INFO L231 Difference]: Finished difference. Result has 100 places, 49 transitions, 356 flow [2022-12-13 20:09:01,341 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=356, PETRI_PLACES=100, PETRI_TRANSITIONS=49} [2022-12-13 20:09:01,341 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 48 predicate places. [2022-12-13 20:09:01,341 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 49 transitions, 356 flow [2022-12-13 20:09:01,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 170.27586206896552) internal successors, (4938), 29 states have internal predecessors, (4938), 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) [2022-12-13 20:09:01,343 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:09:01,343 INFO L209 CegarLoopForPetriNet]: trace histogram [26, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:09:01,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-13 20:09:01,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:09:01,545 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-12-13 20:09:01,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:09:01,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1312857171, now seen corresponding path program 5 times [2022-12-13 20:09:01,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:09:01,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733869790] [2022-12-13 20:09:01,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:09:01,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:09:01,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:09:01,690 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:09:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:09:01,753 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 20:09:01,753 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 20:09:01,754 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2022-12-13 20:09:01,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2022-12-13 20:09:01,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2022-12-13 20:09:01,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2022-12-13 20:09:01,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2022-12-13 20:09:01,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2022-12-13 20:09:01,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2022-12-13 20:09:01,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2022-12-13 20:09:01,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2022-12-13 20:09:01,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2022-12-13 20:09:01,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2022-12-13 20:09:01,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2022-12-13 20:09:01,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2022-12-13 20:09:01,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2022-12-13 20:09:01,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2022-12-13 20:09:01,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2022-12-13 20:09:01,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 46 remaining) [2022-12-13 20:09:01,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 46 remaining) [2022-12-13 20:09:01,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2022-12-13 20:09:01,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2022-12-13 20:09:01,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2022-12-13 20:09:01,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2022-12-13 20:09:01,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2022-12-13 20:09:01,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2022-12-13 20:09:01,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2022-12-13 20:09:01,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2022-12-13 20:09:01,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2022-12-13 20:09:01,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2022-12-13 20:09:01,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2022-12-13 20:09:01,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2022-12-13 20:09:01,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2022-12-13 20:09:01,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2022-12-13 20:09:01,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2022-12-13 20:09:01,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2022-12-13 20:09:01,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2022-12-13 20:09:01,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2022-12-13 20:09:01,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2022-12-13 20:09:01,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2022-12-13 20:09:01,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2022-12-13 20:09:01,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2022-12-13 20:09:01,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2022-12-13 20:09:01,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2022-12-13 20:09:01,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2022-12-13 20:09:01,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2022-12-13 20:09:01,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2022-12-13 20:09:01,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2022-12-13 20:09:01,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 20:09:01,759 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1] [2022-12-13 20:09:01,764 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 20:09:01,764 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:09:01,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:09:01 BasicIcfg [2022-12-13 20:09:01,818 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:09:01,819 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:09:01,819 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:09:01,819 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:09:01,820 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:08:54" (3/4) ... [2022-12-13 20:09:01,822 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 20:09:01,823 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:09:01,823 INFO L158 Benchmark]: Toolchain (without parser) took 8579.80ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 89.1MB in the beginning and 56.6MB in the end (delta: 32.4MB). Peak memory consumption was 89.5MB. Max. memory is 16.1GB. [2022-12-13 20:09:01,823 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory is still 96.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:09:01,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.12ms. Allocated memory is still 125.8MB. Free memory was 89.1MB in the beginning and 68.6MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 20:09:01,824 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.80ms. Allocated memory is still 125.8MB. Free memory was 68.6MB in the beginning and 66.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:09:01,824 INFO L158 Benchmark]: Boogie Preprocessor took 20.30ms. Allocated memory is still 125.8MB. Free memory was 66.4MB in the beginning and 64.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:09:01,824 INFO L158 Benchmark]: RCFGBuilder took 426.28ms. Allocated memory is still 125.8MB. Free memory was 64.8MB in the beginning and 94.0MB in the end (delta: -29.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 20:09:01,825 INFO L158 Benchmark]: TraceAbstraction took 7780.71ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 121.3MB in the beginning and 57.7MB in the end (delta: 63.7MB). Peak memory consumption was 95.0MB. Max. memory is 16.1GB. [2022-12-13 20:09:01,825 INFO L158 Benchmark]: Witness Printer took 3.64ms. Allocated memory is still 182.5MB. Free memory was 57.7MB in the beginning and 56.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:09:01,827 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory is still 96.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.12ms. Allocated memory is still 125.8MB. Free memory was 89.1MB in the beginning and 68.6MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.80ms. Allocated memory is still 125.8MB. Free memory was 68.6MB in the beginning and 66.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.30ms. Allocated memory is still 125.8MB. Free memory was 66.4MB in the beginning and 64.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 426.28ms. Allocated memory is still 125.8MB. Free memory was 64.8MB in the beginning and 94.0MB in the end (delta: -29.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 7780.71ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 121.3MB in the beginning and 57.7MB in the end (delta: 63.7MB). Peak memory consumption was 95.0MB. Max. memory is 16.1GB. * Witness Printer took 3.64ms. Allocated memory is still 182.5MB. Free memory was 57.7MB in the beginning and 56.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 190 PlacesBefore, 52 PlacesAfterwards, 191 TransitionsBefore, 49 TransitionsAfterwards, 13080 CoEnabledTransitionPairs, 8 FixpointIterations, 33 TrivialSequentialCompositions, 165 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 4 ChoiceCompositions, 215 TotalNumberOfCompositions, 14720 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11484, independent: 11351, independent conditional: 0, independent unconditional: 11351, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6926, independent: 6887, independent conditional: 0, independent unconditional: 6887, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11484, independent: 4464, independent conditional: 0, independent unconditional: 4464, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 6926, unknown conditional: 0, unknown unconditional: 6926] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 73, Positive conditional cache size: 0, Positive unconditional cache size: 73, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 725]: Data race detected Data race detected The following path leads to a data race: [L683] 0 int i, j; [L686] 0 int p, q; [L703] 0 int cur = 1, prev = 0, next = 0; [L704] 0 int x; [L714] 0 pthread_t id1, id2; [L716] 0 i = 1 [L719] 0 j = 1 [L721] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(argc)=196422, arg={0:0}, argc=196422, argv={196420:196419}, argv={196420:196419}, cur=1, i=1, id1={3:0}, id2={5:0}, j=1, next=0, p=0, prev=0, pthread_create(&id1, ((void *)0), t1, ((void *)0))=-2, q=0, x=0] [L688] 1 p = 0 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L722] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(argc)=196422, arg={0:0}, arg={0:0}, arg={0:0}, argc=196422, argv={196420:196419}, argv={196420:196419}, cur=1, i=1, id1={3:0}, id2={5:0}, j=1, next=0, p=0, prev=0, pthread_create(&id2, ((void *)0), t2, ((void *)0))=-1, q=0, x=0] [L723] CALL, EXPR 0 fib() [L706] 0 x = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=377, p=0, prev=233, q=0, x=13] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=610, p=0, prev=377, q=0, x=14] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=987, p=0, prev=610, q=0, x=15] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=2584, i=1, j=1, next=2584, p=0, prev=1597, q=0, x=17] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=4181, i=1, j=1, next=4181, p=0, prev=2584, q=0, x=18] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=6765, i=1, j=1, next=6765, p=0, prev=4181, q=0, x=19] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=10946, i=1, j=1, next=10946, p=0, prev=6765, q=0, x=20] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=17711, i=1, j=1, next=17711, p=0, prev=10946, q=0, x=21] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=28657, i=1, j=1, next=28657, p=0, prev=17711, q=0, x=22] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=46368, i=1, j=1, next=46368, p=0, prev=28657, q=0, x=23] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=75025, i=1, j=1, next=75025, p=0, prev=46368, q=0, x=24] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=121393, i=1, j=1, next=121393, p=0, prev=75025, q=0, x=25] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=1, j=1, next=196418, p=0, prev=121393, q=0, x=26] [L706] 0 x < 26 [L706] COND FALSE 0 !(x < 26) [L711] 0 return prev; [L723] RET, EXPR 0 fib() [L723] 0 int correct = fib(); [L725] 0 i < correct VAL [\old(argc)=196422, arg={0:0}, arg={0:0}, arg={0:0}, argc=196422, argv={196420:196419}, argv={196420:196419}, correct=121393, cur=196418, i=1, id1={3:0}, id2={5:0}, j=1, next=196418, p=0, prev=121393, q=0, x=26] [L688] 1 p < 12 [L688] COND TRUE 1 p < 12 [L690] EXPR 1 i + j [L690] 1 i = i + j [L688] 1 p++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=2, j=1, next=196418, p=1, prev=121393, q=0, x=26] [L725] 0 i < correct VAL [\old(argc)=196422, arg={0:0}, arg={0:0}, arg={0:0}, argc=196422, argv={196420:196419}, argv={196420:196419}, correct=121393, cur=196418, i=2, id1={3:0}, id2={5:0}, j=1, next=196418, p=1, prev=121393, q=0, x=26] Now there is a data race on ~i~0 between C: i = i + j [690] and C: i < correct [725] - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 246 locations, 46 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.6s, OverallIterations: 8, TraceHistogramMax: 26, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1148 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1123 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 809 IncrementalHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 4 mSDtfsCounter, 809 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 201 GetRequests, 111 SyntacticMatches, 20 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=356occurred in iteration=7, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 205 NumberOfCodeBlocks, 205 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 227 ConstructedInterpolants, 0 QuantifiedInterpolants, 481 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1085 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 16 InterpolantComputations, 3 PerfectInterpolantSequences, 1/959 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 20:09:01,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5baeba5a-4d7b-4fde-9b17-2e383a24a684/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE