./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/fib_safe-6-racy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/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_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/fib_safe-6-racy.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/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_aabca53e-6ced-4adc-9317-5aa6631b36f2/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 6959d4f0e51834399b1f177b2907c6f040a7f82b22df70a4ffbb4c40805c24f4 --- 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 19:12:08,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:12:08,951 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:12:08,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:12:08,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:12:08,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:12:08,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:12:08,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:12:08,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:12:08,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:12:08,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:12:08,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:12:08,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:12:08,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:12:08,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:12:08,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:12:08,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:12:08,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:12:08,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:12:08,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:12:08,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:12:08,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:12:08,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:12:08,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:12:08,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:12:08,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:12:08,997 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:12:08,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:12:08,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:12:08,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:12:09,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:12:09,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:12:09,001 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:12:09,002 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:12:09,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:12:09,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:12:09,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:12:09,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:12:09,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:12:09,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:12:09,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:12:09,006 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 19:12:09,026 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:12:09,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:12:09,027 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:12:09,027 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:12:09,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:12:09,028 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:12:09,029 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:12:09,029 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:12:09,029 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:12:09,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:12:09,029 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:12:09,029 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:12:09,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:12:09,030 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:12:09,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:12:09,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:12:09,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:12:09,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:12:09,031 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 19:12:09,031 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:12:09,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:12:09,031 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:12:09,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:12:09,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:12:09,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:12:09,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:12:09,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:12:09,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:12:09,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:12:09,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:12:09,032 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:12:09,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:12:09,032 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:12:09,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:12:09,033 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:12:09,033 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:12:09,033 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:12:09,033 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_aabca53e-6ced-4adc-9317-5aa6631b36f2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6959d4f0e51834399b1f177b2907c6f040a7f82b22df70a4ffbb4c40805c24f4 [2022-12-13 19:12:09,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:12:09,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:12:09,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:12:09,218 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:12:09,218 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:12:09,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread/fib_safe-6-racy.i [2022-12-13 19:12:11,796 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:12:11,974 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:12:11,974 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/sv-benchmarks/c/pthread/fib_safe-6-racy.i [2022-12-13 19:12:11,983 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/data/d5a28a633/7e308309e2a248a09c2be34b51c83ece/FLAG7a08fe906 [2022-12-13 19:12:11,994 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/data/d5a28a633/7e308309e2a248a09c2be34b51c83ece [2022-12-13 19:12:11,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:12:11,997 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:12:11,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:12:11,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:12:12,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:12:12,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:12:11" (1/1) ... [2022-12-13 19:12:12,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@557d75e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:12, skipping insertion in model container [2022-12-13 19:12:12,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:12:11" (1/1) ... [2022-12-13 19:12:12,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:12:12,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:12:12,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:12:12,224 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:12:12,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:12:12,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:12:12,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:12:12,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:12:12,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:12:12,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:12:12,237 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_aabca53e-6ced-4adc-9317-5aa6631b36f2/sv-benchmarks/c/pthread/fib_safe-6-racy.i[30813,30826] [2022-12-13 19:12:12,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:12:12,245 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:12:12,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:12:12,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:12:12,272 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:12:12,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:12:12,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:12:12,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:12:12,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:12:12,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:12:12,278 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_aabca53e-6ced-4adc-9317-5aa6631b36f2/sv-benchmarks/c/pthread/fib_safe-6-racy.i[30813,30826] [2022-12-13 19:12:12,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:12:12,298 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:12:12,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:12 WrapperNode [2022-12-13 19:12:12,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:12:12,299 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:12:12,299 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:12:12,299 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:12:12,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:12" (1/1) ... [2022-12-13 19:12:12,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:12" (1/1) ... [2022-12-13 19:12:12,330 INFO L138 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 122 [2022-12-13 19:12:12,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:12:12,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:12:12,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:12:12,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:12:12,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:12" (1/1) ... [2022-12-13 19:12:12,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:12" (1/1) ... [2022-12-13 19:12:12,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:12" (1/1) ... [2022-12-13 19:12:12,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:12" (1/1) ... [2022-12-13 19:12:12,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:12" (1/1) ... [2022-12-13 19:12:12,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:12" (1/1) ... [2022-12-13 19:12:12,348 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:12" (1/1) ... [2022-12-13 19:12:12,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:12" (1/1) ... [2022-12-13 19:12:12,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:12:12,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:12:12,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:12:12,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:12:12,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:12" (1/1) ... [2022-12-13 19:12:12,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:12:12,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:12:12,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:12:12,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:12:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-13 19:12:12,407 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-13 19:12:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-13 19:12:12,407 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-13 19:12:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 19:12:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 19:12:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:12:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:12:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:12:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 19:12:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 19:12:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:12:12,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:12:12,410 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 19:12:12,512 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:12:12,514 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:12:12,731 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:12:12,774 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:12:12,774 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-13 19:12:12,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:12:12 BoogieIcfgContainer [2022-12-13 19:12:12,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:12:12,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:12:12,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:12:12,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:12:12,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:12:11" (1/3) ... [2022-12-13 19:12:12,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32acd229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:12:12, skipping insertion in model container [2022-12-13 19:12:12,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:12" (2/3) ... [2022-12-13 19:12:12,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32acd229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:12:12, skipping insertion in model container [2022-12-13 19:12:12,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:12:12" (3/3) ... [2022-12-13 19:12:12,785 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-6-racy.i [2022-12-13 19:12:12,794 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 19:12:12,804 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:12:12,805 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-12-13 19:12:12,805 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 19:12:12,870 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 19:12:12,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 193 transitions, 396 flow [2022-12-13 19:12:12,956 INFO L130 PetriNetUnfolder]: 8/191 cut-off events. [2022-12-13 19:12:12,956 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:12:12,962 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 19:12:12,962 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 193 transitions, 396 flow [2022-12-13 19:12:12,967 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 191 transitions, 388 flow [2022-12-13 19:12:12,970 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 19:12:12,978 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 190 places, 191 transitions, 388 flow [2022-12-13 19:12:12,980 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 190 places, 191 transitions, 388 flow [2022-12-13 19:12:12,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 191 transitions, 388 flow [2022-12-13 19:12:13,015 INFO L130 PetriNetUnfolder]: 8/191 cut-off events. [2022-12-13 19:12:13,015 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:12:13,017 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 19:12:13,021 INFO L119 LiptonReduction]: Number of co-enabled transitions 13080 [2022-12-13 19:12:15,939 INFO L134 LiptonReduction]: Checked pairs total: 14720 [2022-12-13 19:12:15,939 INFO L136 LiptonReduction]: Total number of compositions: 215 [2022-12-13 19:12:15,953 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:12:15,957 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;@3f8ad8f5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:12:15,957 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2022-12-13 19:12:15,959 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 19:12:15,959 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:12:15,959 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:12:15,960 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 19:12:15,960 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 19:12:15,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:12:15,965 INFO L85 PathProgramCache]: Analyzing trace with hash 785, now seen corresponding path program 1 times [2022-12-13 19:12:15,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:12:15,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825588080] [2022-12-13 19:12:15,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:15,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:12:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:16,055 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 19:12:16,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:12:16,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825588080] [2022-12-13 19:12:16,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825588080] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:12:16,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:12:16,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 19:12:16,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870900827] [2022-12-13 19:12:16,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:12:16,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 19:12:16,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:12:16,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 19:12:16,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 19:12:16,080 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 408 [2022-12-13 19:12:16,082 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 19:12:16,082 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:12:16,082 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 408 [2022-12-13 19:12:16,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:12:16,134 INFO L130 PetriNetUnfolder]: 97/194 cut-off events. [2022-12-13 19:12:16,134 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 19:12:16,135 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 19:12:16,137 INFO L137 encePairwiseOnDemand]: 379/408 looper letters, 14 selfloop transitions, 0 changer transitions 1/20 dead transitions. [2022-12-13 19:12:16,137 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 76 flow [2022-12-13 19:12:16,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 19:12:16,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 19:12:16,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 392 transitions. [2022-12-13 19:12:16,151 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4803921568627451 [2022-12-13 19:12:16,152 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 392 transitions. [2022-12-13 19:12:16,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 392 transitions. [2022-12-13 19:12:16,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:12:16,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 392 transitions. [2022-12-13 19:12:16,159 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 19:12:16,165 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 19:12:16,165 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 19:12:16,167 INFO L175 Difference]: Start difference. First operand has 52 places, 49 transitions, 104 flow. Second operand 2 states and 392 transitions. [2022-12-13 19:12:16,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 76 flow [2022-12-13 19:12:16,170 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 19:12:16,172 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 42 flow [2022-12-13 19:12:16,174 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 19:12:16,177 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -29 predicate places. [2022-12-13 19:12:16,177 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 42 flow [2022-12-13 19:12:16,177 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 19:12:16,177 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:12:16,178 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:12:16,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 19:12:16,178 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 19:12:16,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:12:16,179 INFO L85 PathProgramCache]: Analyzing trace with hash 796359508, now seen corresponding path program 1 times [2022-12-13 19:12:16,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:12:16,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876474505] [2022-12-13 19:12:16,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:16,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:12:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:16,291 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 19:12:16,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:12:16,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876474505] [2022-12-13 19:12:16,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876474505] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:12:16,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:12:16,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:12:16,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072597167] [2022-12-13 19:12:16,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:12:16,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:12:16,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:12:16,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:12:16,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:12:16,303 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 408 [2022-12-13 19:12:16,304 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 19:12:16,304 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:12:16,304 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 408 [2022-12-13 19:12:16,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:12:16,353 INFO L130 PetriNetUnfolder]: 97/194 cut-off events. [2022-12-13 19:12:16,353 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:12:16,353 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 19:12:16,354 INFO L137 encePairwiseOnDemand]: 405/408 looper letters, 19 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2022-12-13 19:12:16,354 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 26 transitions, 98 flow [2022-12-13 19:12:16,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:12:16,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:12:16,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 532 transitions. [2022-12-13 19:12:16,358 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.434640522875817 [2022-12-13 19:12:16,358 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 532 transitions. [2022-12-13 19:12:16,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 532 transitions. [2022-12-13 19:12:16,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:12:16,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 532 transitions. [2022-12-13 19:12:16,360 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 19:12:16,362 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 19:12:16,363 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 19:12:16,363 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 42 flow. Second operand 3 states and 532 transitions. [2022-12-13 19:12:16,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 26 transitions, 98 flow [2022-12-13 19:12:16,364 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 19:12:16,365 INFO L231 Difference]: Finished difference. Result has 25 places, 20 transitions, 54 flow [2022-12-13 19:12:16,365 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 19:12:16,366 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -27 predicate places. [2022-12-13 19:12:16,366 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 20 transitions, 54 flow [2022-12-13 19:12:16,366 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 19:12:16,366 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:12:16,366 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:12:16,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 19:12:16,367 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 19:12:16,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:12:16,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1082632746, now seen corresponding path program 1 times [2022-12-13 19:12:16,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:12:16,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782463433] [2022-12-13 19:12:16,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:16,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:12:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:16,445 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 19:12:16,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:12:16,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782463433] [2022-12-13 19:12:16,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782463433] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:12:16,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3175747] [2022-12-13 19:12:16,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:16,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:16,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:12:16,448 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:12:16,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 19:12:16,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:16,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 19:12:16,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:12:16,531 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 19:12:16,531 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:12:16,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3175747] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:12:16,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 19:12:16,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-13 19:12:16,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249295434] [2022-12-13 19:12:16,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:12:16,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:12:16,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:12:16,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:12:16,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:12:16,537 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 408 [2022-12-13 19:12:16,538 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 19:12:16,538 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:12:16,538 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 408 [2022-12-13 19:12:16,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:12:16,597 INFO L130 PetriNetUnfolder]: 203/337 cut-off events. [2022-12-13 19:12:16,597 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-12-13 19:12:16,598 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 19:12:16,599 INFO L137 encePairwiseOnDemand]: 403/408 looper letters, 25 selfloop transitions, 4 changer transitions 0/32 dead transitions. [2022-12-13 19:12:16,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 32 transitions, 143 flow [2022-12-13 19:12:16,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:12:16,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:12:16,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 541 transitions. [2022-12-13 19:12:16,602 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44199346405228757 [2022-12-13 19:12:16,602 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 541 transitions. [2022-12-13 19:12:16,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 541 transitions. [2022-12-13 19:12:16,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:12:16,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 541 transitions. [2022-12-13 19:12:16,604 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 19:12:16,607 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 19:12:16,608 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 19:12:16,608 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 54 flow. Second operand 3 states and 541 transitions. [2022-12-13 19:12:16,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 32 transitions, 143 flow [2022-12-13 19:12:16,609 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 19:12:16,610 INFO L231 Difference]: Finished difference. Result has 28 places, 24 transitions, 88 flow [2022-12-13 19:12:16,610 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 19:12:16,610 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -24 predicate places. [2022-12-13 19:12:16,611 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 24 transitions, 88 flow [2022-12-13 19:12:16,611 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 19:12:16,611 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:12:16,611 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:12:16,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 19:12:16,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:16,814 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 19:12:16,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:12:16,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1331487709, now seen corresponding path program 1 times [2022-12-13 19:12:16,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:12:16,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221046757] [2022-12-13 19:12:16,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:16,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:12:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:16,872 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 19:12:16,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:12:16,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221046757] [2022-12-13 19:12:16,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221046757] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:12:16,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296211082] [2022-12-13 19:12:16,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:16,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:16,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:12:16,874 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:12:16,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 19:12:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:16,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 19:12:16,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:12:16,961 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 19:12:16,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:12:16,973 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 19:12:16,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296211082] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:12:16,974 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:12:16,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-12-13 19:12:16,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981747867] [2022-12-13 19:12:16,974 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:12:16,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:12:16,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:12:16,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:12:16,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:12:16,988 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 408 [2022-12-13 19:12:16,990 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 19:12:16,990 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:12:16,990 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 408 [2022-12-13 19:12:16,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:12:17,080 INFO L130 PetriNetUnfolder]: 271/447 cut-off events. [2022-12-13 19:12:17,081 INFO L131 PetriNetUnfolder]: For 199/202 co-relation queries the response was YES. [2022-12-13 19:12:17,081 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 19:12:17,084 INFO L137 encePairwiseOnDemand]: 405/408 looper letters, 48 selfloop transitions, 5 changer transitions 0/59 dead transitions. [2022-12-13 19:12:17,084 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 59 transitions, 318 flow [2022-12-13 19:12:17,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:12:17,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:12:17,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1059 transitions. [2022-12-13 19:12:17,087 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4325980392156863 [2022-12-13 19:12:17,088 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1059 transitions. [2022-12-13 19:12:17,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1059 transitions. [2022-12-13 19:12:17,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:12:17,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1059 transitions. [2022-12-13 19:12:17,091 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 19:12:17,095 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 19:12:17,096 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 19:12:17,097 INFO L175 Difference]: Start difference. First operand has 28 places, 24 transitions, 88 flow. Second operand 6 states and 1059 transitions. [2022-12-13 19:12:17,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 59 transitions, 318 flow [2022-12-13 19:12:17,098 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 19:12:17,099 INFO L231 Difference]: Finished difference. Result has 34 places, 27 transitions, 122 flow [2022-12-13 19:12:17,100 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 19:12:17,100 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -18 predicate places. [2022-12-13 19:12:17,100 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 122 flow [2022-12-13 19:12:17,101 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 19:12:17,101 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:12:17,101 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:12:17,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 19:12:17,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:17,302 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 19:12:17,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:12:17,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1465911661, now seen corresponding path program 2 times [2022-12-13 19:12:17,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:12:17,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616462868] [2022-12-13 19:12:17,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:17,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:12:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:17,378 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 19:12:17,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:12:17,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616462868] [2022-12-13 19:12:17,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616462868] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:12:17,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214789446] [2022-12-13 19:12:17,379 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:12:17,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:17,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:12:17,380 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:12:17,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 19:12:17,450 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 19:12:17,450 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:12:17,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 19:12:17,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:12:17,466 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 19:12:17,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:12:17,502 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 19:12:17,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214789446] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:12:17,502 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:12:17,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-12-13 19:12:17,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054955420] [2022-12-13 19:12:17,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:12:17,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 19:12:17,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:12:17,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 19:12:17,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-13 19:12:17,523 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 408 [2022-12-13 19:12:17,527 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 19:12:17,527 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:12:17,527 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 408 [2022-12-13 19:12:17,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:12:17,675 INFO L130 PetriNetUnfolder]: 451/717 cut-off events. [2022-12-13 19:12:17,676 INFO L131 PetriNetUnfolder]: For 800/803 co-relation queries the response was YES. [2022-12-13 19:12:17,676 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 19:12:17,679 INFO L137 encePairwiseOnDemand]: 405/408 looper letters, 96 selfloop transitions, 11 changer transitions 0/113 dead transitions. [2022-12-13 19:12:17,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 113 transitions, 612 flow [2022-12-13 19:12:17,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 19:12:17,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 19:12:17,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2118 transitions. [2022-12-13 19:12:17,686 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4325980392156863 [2022-12-13 19:12:17,686 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2118 transitions. [2022-12-13 19:12:17,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2118 transitions. [2022-12-13 19:12:17,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:12:17,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2118 transitions. [2022-12-13 19:12:17,690 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 19:12:17,694 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 19:12:17,695 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 19:12:17,695 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 122 flow. Second operand 12 states and 2118 transitions. [2022-12-13 19:12:17,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 113 transitions, 612 flow [2022-12-13 19:12:17,697 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 19:12:17,698 INFO L231 Difference]: Finished difference. Result has 50 places, 33 transitions, 204 flow [2022-12-13 19:12:17,698 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 19:12:17,699 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -2 predicate places. [2022-12-13 19:12:17,699 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 33 transitions, 204 flow [2022-12-13 19:12:17,700 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 19:12:17,700 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:12:17,700 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:12:17,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-13 19:12:17,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:17,900 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 19:12:17,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:12:17,901 INFO L85 PathProgramCache]: Analyzing trace with hash 333058643, now seen corresponding path program 3 times [2022-12-13 19:12:17,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:12:17,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516026433] [2022-12-13 19:12:17,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:17,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:12:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:18,062 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 19:12:18,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:12:18,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516026433] [2022-12-13 19:12:18,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516026433] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:12:18,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479438785] [2022-12-13 19:12:18,063 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 19:12:18,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:18,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:12:18,064 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:12:18,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 19:12:18,143 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-12-13 19:12:18,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:12:18,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 19:12:18,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:12:18,172 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 19:12:18,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:12:18,257 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 19:12:18,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479438785] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:12:18,258 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:12:18,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 17 [2022-12-13 19:12:18,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66382520] [2022-12-13 19:12:18,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:12:18,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-13 19:12:18,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:12:18,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-13 19:12:18,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2022-12-13 19:12:18,284 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 408 [2022-12-13 19:12:18,287 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 33 transitions, 204 flow. Second operand has 17 states, 17 states have (on average 170.47058823529412) internal successors, (2898), 17 states have internal predecessors, (2898), 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 19:12:18,287 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:12:18,287 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 408 [2022-12-13 19:12:18,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:12:18,488 INFO L130 PetriNetUnfolder]: 571/897 cut-off events. [2022-12-13 19:12:18,488 INFO L131 PetriNetUnfolder]: For 3544/3547 co-relation queries the response was YES. [2022-12-13 19:12:18,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2898 conditions, 897 events. 571/897 cut-off events. For 3544/3547 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2734 event pairs, 42 based on Foata normal form. 60/941 useless extension candidates. Maximal degree in co-relation 2882. Up to 196 conditions per place. [2022-12-13 19:12:18,492 INFO L137 encePairwiseOnDemand]: 405/408 looper letters, 128 selfloop transitions, 15 changer transitions 0/149 dead transitions. [2022-12-13 19:12:18,492 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 149 transitions, 858 flow [2022-12-13 19:12:18,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 19:12:18,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 19:12:18,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2820 transitions. [2022-12-13 19:12:18,496 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4319852941176471 [2022-12-13 19:12:18,496 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2820 transitions. [2022-12-13 19:12:18,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2820 transitions. [2022-12-13 19:12:18,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:12:18,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2820 transitions. [2022-12-13 19:12:18,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 176.25) internal successors, (2820), 16 states have internal predecessors, (2820), 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 19:12:18,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 408.0) internal successors, (6936), 17 states have internal predecessors, (6936), 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 19:12:18,507 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 408.0) internal successors, (6936), 17 states have internal predecessors, (6936), 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 19:12:18,507 INFO L175 Difference]: Start difference. First operand has 50 places, 33 transitions, 204 flow. Second operand 16 states and 2820 transitions. [2022-12-13 19:12:18,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 149 transitions, 858 flow [2022-12-13 19:12:18,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 149 transitions, 802 flow, removed 23 selfloop flow, removed 5 redundant places. [2022-12-13 19:12:18,512 INFO L231 Difference]: Finished difference. Result has 64 places, 37 transitions, 236 flow [2022-12-13 19:12:18,512 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=16, PETRI_FLOW=236, PETRI_PLACES=64, PETRI_TRANSITIONS=37} [2022-12-13 19:12:18,513 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 12 predicate places. [2022-12-13 19:12:18,513 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 37 transitions, 236 flow [2022-12-13 19:12:18,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 170.47058823529412) internal successors, (2898), 17 states have internal predecessors, (2898), 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 19:12:18,514 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:12:18,514 INFO L209 CegarLoopForPetriNet]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:12:18,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 19:12:18,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:18,715 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 19:12:18,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:12:18,715 INFO L85 PathProgramCache]: Analyzing trace with hash 941331667, now seen corresponding path program 4 times [2022-12-13 19:12:18,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:12:18,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613899916] [2022-12-13 19:12:18,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:18,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:12:18,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:12:18,742 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:12:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:12:18,803 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:12:18,803 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 19:12:18,804 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2022-12-13 19:12:18,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2022-12-13 19:12:18,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2022-12-13 19:12:18,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2022-12-13 19:12:18,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2022-12-13 19:12:18,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2022-12-13 19:12:18,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2022-12-13 19:12:18,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2022-12-13 19:12:18,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2022-12-13 19:12:18,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2022-12-13 19:12:18,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2022-12-13 19:12:18,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2022-12-13 19:12:18,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2022-12-13 19:12:18,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2022-12-13 19:12:18,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2022-12-13 19:12:18,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2022-12-13 19:12:18,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 46 remaining) [2022-12-13 19:12:18,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 46 remaining) [2022-12-13 19:12:18,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2022-12-13 19:12:18,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2022-12-13 19:12:18,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2022-12-13 19:12:18,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2022-12-13 19:12:18,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2022-12-13 19:12:18,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2022-12-13 19:12:18,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2022-12-13 19:12:18,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2022-12-13 19:12:18,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2022-12-13 19:12:18,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2022-12-13 19:12:18,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2022-12-13 19:12:18,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2022-12-13 19:12:18,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2022-12-13 19:12:18,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2022-12-13 19:12:18,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2022-12-13 19:12:18,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2022-12-13 19:12:18,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2022-12-13 19:12:18,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2022-12-13 19:12:18,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2022-12-13 19:12:18,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2022-12-13 19:12:18,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2022-12-13 19:12:18,812 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2022-12-13 19:12:18,812 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2022-12-13 19:12:18,812 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2022-12-13 19:12:18,812 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2022-12-13 19:12:18,812 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2022-12-13 19:12:18,812 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2022-12-13 19:12:18,812 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2022-12-13 19:12:18,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 19:12:18,813 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2022-12-13 19:12:18,819 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 19:12:18,819 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:12:18,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:12:18 BasicIcfg [2022-12-13 19:12:18,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:12:18,862 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:12:18,862 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:12:18,862 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:12:18,862 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:12:12" (3/4) ... [2022-12-13 19:12:18,864 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 19:12:18,864 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:12:18,864 INFO L158 Benchmark]: Toolchain (without parser) took 6867.50ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 107.5MB in the beginning and 116.8MB in the end (delta: -9.3MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2022-12-13 19:12:18,865 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 140.5MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:12:18,865 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.73ms. Allocated memory is still 140.5MB. Free memory was 107.5MB in the beginning and 86.6MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 19:12:18,865 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.83ms. Allocated memory is still 140.5MB. Free memory was 86.6MB in the beginning and 84.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:12:18,865 INFO L158 Benchmark]: Boogie Preprocessor took 20.63ms. Allocated memory is still 140.5MB. Free memory was 84.5MB in the beginning and 82.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:12:18,866 INFO L158 Benchmark]: RCFGBuilder took 425.21ms. Allocated memory is still 140.5MB. Free memory was 82.9MB in the beginning and 61.5MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 19:12:18,866 INFO L158 Benchmark]: TraceAbstraction took 6081.82ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 61.0MB in the beginning and 116.8MB in the end (delta: -55.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:12:18,866 INFO L158 Benchmark]: Witness Printer took 2.55ms. Allocated memory is still 169.9MB. Free memory is still 116.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:12:18,868 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 140.5MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.73ms. Allocated memory is still 140.5MB. Free memory was 107.5MB in the beginning and 86.6MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.83ms. Allocated memory is still 140.5MB. Free memory was 86.6MB in the beginning and 84.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.63ms. Allocated memory is still 140.5MB. Free memory was 84.5MB in the beginning and 82.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 425.21ms. Allocated memory is still 140.5MB. Free memory was 82.9MB in the beginning and 61.5MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 6081.82ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 61.0MB in the beginning and 116.8MB in the end (delta: -55.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.55ms. Allocated memory is still 169.9MB. Free memory is still 116.8MB. 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: 3.0s, 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)=614, arg={0:0}, argc=614, argv={612:611}, argv={612:611}, 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)=614, arg={0:0}, arg={0:0}, arg={0:0}, argc=614, argv={612:611}, argv={612:611}, 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 < 14 [L706] COND TRUE 0 x < 14 [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 < 14 [L706] COND TRUE 0 x < 14 [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 < 14 [L706] COND TRUE 0 x < 14 [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 < 14 [L706] COND TRUE 0 x < 14 [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 < 14 [L706] COND TRUE 0 x < 14 [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 < 14 [L706] COND TRUE 0 x < 14 [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 < 14 [L706] COND TRUE 0 x < 14 [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 < 14 [L706] COND TRUE 0 x < 14 [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 < 14 [L706] COND TRUE 0 x < 14 [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 < 14 [L706] COND TRUE 0 x < 14 [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 < 14 [L706] COND TRUE 0 x < 14 [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 < 14 [L706] COND TRUE 0 x < 14 [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 < 14 [L706] COND TRUE 0 x < 14 [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 < 14 [L706] COND TRUE 0 x < 14 [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 < 14 [L706] COND FALSE 0 !(x < 14) [L711] 0 return prev; [L723] RET, EXPR 0 fib() [L723] 0 int correct = fib(); [L725] 0 i <= correct VAL [\old(argc)=614, arg={0:0}, arg={0:0}, arg={0:0}, argc=614, argv={612:611}, argv={612:611}, correct=377, cur=610, i=1, id1={3:0}, id2={5:0}, j=1, next=610, p=0, prev=377, q=0, x=14] [L688] 1 p < 6 [L688] COND TRUE 1 p < 6 [L690] EXPR 1 i + j [L690] 1 i = i + j [L688] 1 p++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=610, i=2, j=1, next=610, p=1, prev=377, q=0, x=14] [L725] 0 i <= correct VAL [\old(argc)=614, arg={0:0}, arg={0:0}, arg={0:0}, argc=614, argv={612:611}, argv={612:611}, correct=377, cur=610, i=2, id1={3:0}, id2={5:0}, j=1, next=610, p=1, prev=377, q=0, x=14] 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: 5.9s, OverallIterations: 7, TraceHistogramMax: 14, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 500 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 478 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 447 IncrementalHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 4 mSDtfsCounter, 447 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 73 SyntacticMatches, 8 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=6, InterpolantAutomatonStates: 42, 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, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 253 SizeOfPredicates, 0 NumberOfNonLiveVariables, 707 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 13 InterpolantComputations, 3 PerfectInterpolantSequences, 1/200 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 19:12:18,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aabca53e-6ced-4adc-9317-5aa6631b36f2/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