./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/fib_unsafe-5-racy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/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_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/fib_unsafe-5-racy.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/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_c3a33ec3-7426-429c-9d74-58cdc946bd87/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 146f0d3d7f309689872842ec2e107172ef6d7d230f0dea419a95cb8899767aeb --- 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 16:33:57,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:33:57,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:33:57,269 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:33:57,269 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:33:57,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:33:57,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:33:57,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:33:57,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:33:57,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:33:57,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:33:57,275 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:33:57,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:33:57,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:33:57,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:33:57,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:33:57,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:33:57,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:33:57,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:33:57,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:33:57,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:33:57,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:33:57,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:33:57,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:33:57,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:33:57,286 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:33:57,286 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:33:57,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:33:57,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:33:57,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:33:57,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:33:57,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:33:57,289 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:33:57,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:33:57,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:33:57,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:33:57,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:33:57,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:33:57,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:33:57,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:33:57,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:33:57,293 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 16:33:57,313 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:33:57,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:33:57,314 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:33:57,314 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:33:57,315 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:33:57,315 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:33:57,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:33:57,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:33:57,316 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:33:57,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:33:57,316 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:33:57,317 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:33:57,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:33:57,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:33:57,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:33:57,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:33:57,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:33:57,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:33:57,323 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 16:33:57,323 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:33:57,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:33:57,323 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:33:57,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:33:57,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:33:57,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:33:57,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:33:57,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:33:57,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:33:57,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:33:57,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:33:57,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:33:57,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:33:57,325 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:33:57,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:33:57,326 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:33:57,326 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:33:57,326 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:33:57,326 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_c3a33ec3-7426-429c-9d74-58cdc946bd87/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 146f0d3d7f309689872842ec2e107172ef6d7d230f0dea419a95cb8899767aeb [2022-12-13 16:33:57,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:33:57,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:33:57,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:33:57,518 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:33:57,518 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:33:57,519 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread/fib_unsafe-5-racy.i [2022-12-13 16:34:00,041 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:34:00,264 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:34:00,265 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/sv-benchmarks/c/pthread/fib_unsafe-5-racy.i [2022-12-13 16:34:00,275 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/data/ce5b6a676/c16d349e83454ed6b8e454c2a1e25119/FLAG13db19a30 [2022-12-13 16:34:00,595 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/data/ce5b6a676/c16d349e83454ed6b8e454c2a1e25119 [2022-12-13 16:34:00,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:34:00,597 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:34:00,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:34:00,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:34:00,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:34:00,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:34:00" (1/1) ... [2022-12-13 16:34:00,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ef1f0ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:34:00, skipping insertion in model container [2022-12-13 16:34:00,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:34:00" (1/1) ... [2022-12-13 16:34:00,608 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:34:00,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:34:00,869 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:34:00,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:34:00,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:34:00,875 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:34:00,880 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:34:00,880 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:34:00,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:34:00,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:34:00,885 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_c3a33ec3-7426-429c-9d74-58cdc946bd87/sv-benchmarks/c/pthread/fib_unsafe-5-racy.i[30819,30832] [2022-12-13 16:34:00,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:34:00,895 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:34:00,930 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:34:00,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:34:00,933 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:34:00,933 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:34:00,938 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:34:00,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:34:00,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:34:00,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:34:00,942 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_c3a33ec3-7426-429c-9d74-58cdc946bd87/sv-benchmarks/c/pthread/fib_unsafe-5-racy.i[30819,30832] [2022-12-13 16:34:00,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:34:00,968 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:34:00,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:34:00 WrapperNode [2022-12-13 16:34:00,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:34:00,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:34:00,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:34:00,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:34:00,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:34:00" (1/1) ... [2022-12-13 16:34:00,988 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:34:00" (1/1) ... [2022-12-13 16:34:01,006 INFO L138 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 122 [2022-12-13 16:34:01,007 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:34:01,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:34:01,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:34:01,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:34:01,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:34:00" (1/1) ... [2022-12-13 16:34:01,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:34:00" (1/1) ... [2022-12-13 16:34:01,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:34:00" (1/1) ... [2022-12-13 16:34:01,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:34:00" (1/1) ... [2022-12-13 16:34:01,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:34:00" (1/1) ... [2022-12-13 16:34:01,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:34:00" (1/1) ... [2022-12-13 16:34:01,031 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:34:00" (1/1) ... [2022-12-13 16:34:01,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:34:00" (1/1) ... [2022-12-13 16:34:01,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:34:01,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:34:01,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:34:01,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:34:01,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:34:00" (1/1) ... [2022-12-13 16:34:01,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:34:01,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:34:01,064 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:34:01,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:34:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-13 16:34:01,097 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-13 16:34:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-13 16:34:01,097 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-13 16:34:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 16:34:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 16:34:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:34:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:34:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:34:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:34:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 16:34:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:34:01,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:34:01,098 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 16:34:01,198 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:34:01,200 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:34:01,410 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:34:01,452 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:34:01,452 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-13 16:34:01,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:34:01 BoogieIcfgContainer [2022-12-13 16:34:01,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:34:01,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:34:01,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:34:01,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:34:01,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:34:00" (1/3) ... [2022-12-13 16:34:01,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4891bc00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:34:01, skipping insertion in model container [2022-12-13 16:34:01,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:34:00" (2/3) ... [2022-12-13 16:34:01,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4891bc00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:34:01, skipping insertion in model container [2022-12-13 16:34:01,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:34:01" (3/3) ... [2022-12-13 16:34:01,463 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_unsafe-5-racy.i [2022-12-13 16:34:01,471 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 16:34:01,479 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:34:01,479 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-12-13 16:34:01,479 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 16:34:01,529 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 16:34:01,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 193 transitions, 396 flow [2022-12-13 16:34:01,602 INFO L130 PetriNetUnfolder]: 8/191 cut-off events. [2022-12-13 16:34:01,602 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:34:01,607 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 16:34:01,608 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 193 transitions, 396 flow [2022-12-13 16:34:01,612 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 191 transitions, 388 flow [2022-12-13 16:34:01,614 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 16:34:01,622 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 190 places, 191 transitions, 388 flow [2022-12-13 16:34:01,624 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 190 places, 191 transitions, 388 flow [2022-12-13 16:34:01,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 191 transitions, 388 flow [2022-12-13 16:34:01,652 INFO L130 PetriNetUnfolder]: 8/191 cut-off events. [2022-12-13 16:34:01,652 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:34:01,653 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 16:34:01,657 INFO L119 LiptonReduction]: Number of co-enabled transitions 13080 [2022-12-13 16:34:04,801 INFO L134 LiptonReduction]: Checked pairs total: 14720 [2022-12-13 16:34:04,801 INFO L136 LiptonReduction]: Total number of compositions: 215 [2022-12-13 16:34:04,815 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:34:04,821 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;@5af1aded, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:34:04,821 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2022-12-13 16:34:04,822 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 16:34:04,823 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:34:04,823 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:34:04,823 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 16:34:04,824 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 16:34:04,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:34:04,828 INFO L85 PathProgramCache]: Analyzing trace with hash 785, now seen corresponding path program 1 times [2022-12-13 16:34:04,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:34:04,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181520526] [2022-12-13 16:34:04,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:34:04,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:34:04,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:34:04,924 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 16:34:04,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:34:04,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181520526] [2022-12-13 16:34:04,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181520526] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:34:04,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:34:04,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 16:34:04,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23623122] [2022-12-13 16:34:04,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:34:04,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 16:34:04,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:34:04,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 16:34:04,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 16:34:04,950 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 408 [2022-12-13 16:34:04,951 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 16:34:04,952 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:34:04,952 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 408 [2022-12-13 16:34:04,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:34:04,991 INFO L130 PetriNetUnfolder]: 97/194 cut-off events. [2022-12-13 16:34:04,991 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 16:34:04,992 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 16:34:04,993 INFO L137 encePairwiseOnDemand]: 379/408 looper letters, 14 selfloop transitions, 0 changer transitions 1/20 dead transitions. [2022-12-13 16:34:04,993 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 76 flow [2022-12-13 16:34:04,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 16:34:04,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 16:34:05,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 392 transitions. [2022-12-13 16:34:05,004 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4803921568627451 [2022-12-13 16:34:05,004 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 392 transitions. [2022-12-13 16:34:05,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 392 transitions. [2022-12-13 16:34:05,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:34:05,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 392 transitions. [2022-12-13 16:34:05,009 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 16:34:05,013 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 16:34:05,013 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 16:34:05,015 INFO L175 Difference]: Start difference. First operand has 52 places, 49 transitions, 104 flow. Second operand 2 states and 392 transitions. [2022-12-13 16:34:05,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 76 flow [2022-12-13 16:34:05,021 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 16:34:05,022 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 42 flow [2022-12-13 16:34:05,023 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 16:34:05,026 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -29 predicate places. [2022-12-13 16:34:05,026 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 42 flow [2022-12-13 16:34:05,026 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 16:34:05,027 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:34:05,027 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:34:05,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:34:05,027 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 16:34:05,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:34:05,028 INFO L85 PathProgramCache]: Analyzing trace with hash 796359508, now seen corresponding path program 1 times [2022-12-13 16:34:05,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:34:05,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396492572] [2022-12-13 16:34:05,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:34:05,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:34:05,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:34:05,120 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 16:34:05,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:34:05,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396492572] [2022-12-13 16:34:05,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396492572] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:34:05,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:34:05,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:34:05,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057184403] [2022-12-13 16:34:05,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:34:05,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:34:05,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:34:05,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:34:05,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:34:05,134 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 408 [2022-12-13 16:34:05,135 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 16:34:05,135 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:34:05,136 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 408 [2022-12-13 16:34:05,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:34:05,180 INFO L130 PetriNetUnfolder]: 97/194 cut-off events. [2022-12-13 16:34:05,180 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:34:05,181 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 16:34:05,182 INFO L137 encePairwiseOnDemand]: 405/408 looper letters, 19 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2022-12-13 16:34:05,182 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 26 transitions, 98 flow [2022-12-13 16:34:05,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:34:05,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:34:05,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 532 transitions. [2022-12-13 16:34:05,186 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.434640522875817 [2022-12-13 16:34:05,186 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 532 transitions. [2022-12-13 16:34:05,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 532 transitions. [2022-12-13 16:34:05,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:34:05,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 532 transitions. [2022-12-13 16:34:05,188 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 16:34:05,192 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 16:34:05,193 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 16:34:05,193 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 42 flow. Second operand 3 states and 532 transitions. [2022-12-13 16:34:05,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 26 transitions, 98 flow [2022-12-13 16:34:05,193 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 16:34:05,194 INFO L231 Difference]: Finished difference. Result has 25 places, 20 transitions, 54 flow [2022-12-13 16:34:05,194 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 16:34:05,195 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -27 predicate places. [2022-12-13 16:34:05,195 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 20 transitions, 54 flow [2022-12-13 16:34:05,195 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 16:34:05,195 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:34:05,195 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:34:05,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 16:34:05,195 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 16:34:05,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:34:05,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1082632746, now seen corresponding path program 1 times [2022-12-13 16:34:05,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:34:05,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006757080] [2022-12-13 16:34:05,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:34:05,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:34:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:34:05,278 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 16:34:05,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:34:05,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006757080] [2022-12-13 16:34:05,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006757080] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:34:05,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271479296] [2022-12-13 16:34:05,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:34:05,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:34:05,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:34:05,280 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:34:05,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 16:34:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:34:05,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 16:34:05,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:34:05,358 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 16:34:05,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:34:05,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271479296] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:34:05,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:34:05,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-13 16:34:05,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36005557] [2022-12-13 16:34:05,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:34:05,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:34:05,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:34:05,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:34:05,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:34:05,364 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 408 [2022-12-13 16:34:05,365 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 16:34:05,365 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:34:05,365 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 408 [2022-12-13 16:34:05,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:34:05,413 INFO L130 PetriNetUnfolder]: 203/337 cut-off events. [2022-12-13 16:34:05,413 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-12-13 16:34:05,414 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 16:34:05,415 INFO L137 encePairwiseOnDemand]: 403/408 looper letters, 25 selfloop transitions, 4 changer transitions 0/32 dead transitions. [2022-12-13 16:34:05,415 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 32 transitions, 143 flow [2022-12-13 16:34:05,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:34:05,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:34:05,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 541 transitions. [2022-12-13 16:34:05,416 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44199346405228757 [2022-12-13 16:34:05,416 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 541 transitions. [2022-12-13 16:34:05,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 541 transitions. [2022-12-13 16:34:05,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:34:05,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 541 transitions. [2022-12-13 16:34:05,418 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 16:34:05,419 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 16:34:05,420 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 16:34:05,420 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 54 flow. Second operand 3 states and 541 transitions. [2022-12-13 16:34:05,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 32 transitions, 143 flow [2022-12-13 16:34:05,420 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 16:34:05,421 INFO L231 Difference]: Finished difference. Result has 28 places, 24 transitions, 88 flow [2022-12-13 16:34:05,421 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 16:34:05,421 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -24 predicate places. [2022-12-13 16:34:05,421 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 24 transitions, 88 flow [2022-12-13 16:34:05,422 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 16:34:05,422 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:34:05,422 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:34:05,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 16:34:05,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:34:05,623 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 16:34:05,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:34:05,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1331487709, now seen corresponding path program 1 times [2022-12-13 16:34:05,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:34:05,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087088059] [2022-12-13 16:34:05,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:34:05,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:34:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:34:05,670 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 16:34:05,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:34:05,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087088059] [2022-12-13 16:34:05,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087088059] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:34:05,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117856495] [2022-12-13 16:34:05,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:34:05,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:34:05,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:34:05,672 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:34:05,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 16:34:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:34:05,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 16:34:05,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:34:05,759 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 16:34:05,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:34:05,772 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 16:34:05,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117856495] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:34:05,772 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:34:05,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-12-13 16:34:05,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79478833] [2022-12-13 16:34:05,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:34:05,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:34:05,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:34:05,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:34:05,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:34:05,786 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 408 [2022-12-13 16:34:05,787 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 16:34:05,788 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:34:05,788 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 408 [2022-12-13 16:34:05,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:34:05,867 INFO L130 PetriNetUnfolder]: 271/447 cut-off events. [2022-12-13 16:34:05,867 INFO L131 PetriNetUnfolder]: For 199/202 co-relation queries the response was YES. [2022-12-13 16:34:05,868 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 16:34:05,869 INFO L137 encePairwiseOnDemand]: 405/408 looper letters, 48 selfloop transitions, 5 changer transitions 0/59 dead transitions. [2022-12-13 16:34:05,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 59 transitions, 318 flow [2022-12-13 16:34:05,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:34:05,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:34:05,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1059 transitions. [2022-12-13 16:34:05,873 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4325980392156863 [2022-12-13 16:34:05,873 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1059 transitions. [2022-12-13 16:34:05,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1059 transitions. [2022-12-13 16:34:05,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:34:05,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1059 transitions. [2022-12-13 16:34:05,876 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 16:34:05,880 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 16:34:05,881 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 16:34:05,881 INFO L175 Difference]: Start difference. First operand has 28 places, 24 transitions, 88 flow. Second operand 6 states and 1059 transitions. [2022-12-13 16:34:05,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 59 transitions, 318 flow [2022-12-13 16:34:05,882 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 16:34:05,883 INFO L231 Difference]: Finished difference. Result has 34 places, 27 transitions, 122 flow [2022-12-13 16:34:05,883 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 16:34:05,883 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -18 predicate places. [2022-12-13 16:34:05,884 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 122 flow [2022-12-13 16:34:05,884 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 16:34:05,884 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:34:05,884 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:34:05,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 16:34:06,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:34:06,086 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 16:34:06,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:34:06,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1465911661, now seen corresponding path program 2 times [2022-12-13 16:34:06,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:34:06,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680017372] [2022-12-13 16:34:06,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:34:06,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:34:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:34:06,291 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 16:34:06,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:34:06,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680017372] [2022-12-13 16:34:06,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680017372] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:34:06,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595650344] [2022-12-13 16:34:06,292 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 16:34:06,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:34:06,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:34:06,294 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:34:06,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 16:34:06,361 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 16:34:06,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:34:06,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 16:34:06,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:34:06,379 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 16:34:06,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:34:06,430 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 16:34:06,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595650344] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:34:06,431 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:34:06,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-12-13 16:34:06,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501032355] [2022-12-13 16:34:06,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:34:06,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 16:34:06,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:34:06,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 16:34:06,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:34:06,457 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 408 [2022-12-13 16:34:06,460 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 16:34:06,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:34:06,460 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 408 [2022-12-13 16:34:06,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:34:06,631 INFO L130 PetriNetUnfolder]: 451/717 cut-off events. [2022-12-13 16:34:06,631 INFO L131 PetriNetUnfolder]: For 800/803 co-relation queries the response was YES. [2022-12-13 16:34:06,632 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 16:34:06,636 INFO L137 encePairwiseOnDemand]: 405/408 looper letters, 96 selfloop transitions, 11 changer transitions 0/113 dead transitions. [2022-12-13 16:34:06,636 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 113 transitions, 612 flow [2022-12-13 16:34:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 16:34:06,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 16:34:06,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2118 transitions. [2022-12-13 16:34:06,642 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4325980392156863 [2022-12-13 16:34:06,642 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2118 transitions. [2022-12-13 16:34:06,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2118 transitions. [2022-12-13 16:34:06,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:34:06,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2118 transitions. [2022-12-13 16:34:06,648 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 16:34:06,654 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 16:34:06,655 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 16:34:06,655 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 122 flow. Second operand 12 states and 2118 transitions. [2022-12-13 16:34:06,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 113 transitions, 612 flow [2022-12-13 16:34:06,657 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 16:34:06,658 INFO L231 Difference]: Finished difference. Result has 50 places, 33 transitions, 204 flow [2022-12-13 16:34:06,658 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 16:34:06,659 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -2 predicate places. [2022-12-13 16:34:06,659 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 33 transitions, 204 flow [2022-12-13 16:34:06,659 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 16:34:06,659 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:34:06,660 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:34:06,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 16:34:06,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:34:06,861 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 16:34:06,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:34:06,862 INFO L85 PathProgramCache]: Analyzing trace with hash 333058643, now seen corresponding path program 3 times [2022-12-13 16:34:06,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:34:06,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321983722] [2022-12-13 16:34:06,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:34:06,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:34:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:34:07,167 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 16:34:07,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:34:07,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321983722] [2022-12-13 16:34:07,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321983722] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:34:07,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662195789] [2022-12-13 16:34:07,168 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 16:34:07,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:34:07,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:34:07,169 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:34:07,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 16:34:07,239 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-12-13 16:34:07,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:34:07,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 16:34:07,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:34:07,277 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 16:34:07,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:34:07,374 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 16:34:07,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662195789] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:34:07,374 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:34:07,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 15 [2022-12-13 16:34:07,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11475436] [2022-12-13 16:34:07,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:34:07,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 16:34:07,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:34:07,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 16:34:07,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2022-12-13 16:34:07,400 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 408 [2022-12-13 16:34:07,401 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 33 transitions, 204 flow. Second operand has 15 states, 15 states have (on average 170.53333333333333) internal successors, (2558), 15 states have internal predecessors, (2558), 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 16:34:07,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:34:07,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 408 [2022-12-13 16:34:07,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:34:07,588 INFO L130 PetriNetUnfolder]: 511/807 cut-off events. [2022-12-13 16:34:07,588 INFO L131 PetriNetUnfolder]: For 2172/2175 co-relation queries the response was YES. [2022-12-13 16:34:07,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2606 conditions, 807 events. 511/807 cut-off events. For 2172/2175 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2473 event pairs, 42 based on Foata normal form. 30/821 useless extension candidates. Maximal degree in co-relation 2590. Up to 182 conditions per place. [2022-12-13 16:34:07,591 INFO L137 encePairwiseOnDemand]: 405/408 looper letters, 112 selfloop transitions, 13 changer transitions 0/131 dead transitions. [2022-12-13 16:34:07,591 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 131 transitions, 758 flow [2022-12-13 16:34:07,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 16:34:07,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 16:34:07,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2466 transitions. [2022-12-13 16:34:07,597 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4317226890756303 [2022-12-13 16:34:07,597 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2466 transitions. [2022-12-13 16:34:07,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2466 transitions. [2022-12-13 16:34:07,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:34:07,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2466 transitions. [2022-12-13 16:34:07,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 176.14285714285714) internal successors, (2466), 14 states have internal predecessors, (2466), 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 16:34:07,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 408.0) internal successors, (6120), 15 states have internal predecessors, (6120), 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 16:34:07,613 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 408.0) internal successors, (6120), 15 states have internal predecessors, (6120), 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 16:34:07,614 INFO L175 Difference]: Start difference. First operand has 50 places, 33 transitions, 204 flow. Second operand 14 states and 2466 transitions. [2022-12-13 16:34:07,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 131 transitions, 758 flow [2022-12-13 16:34:07,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 131 transitions, 706 flow, removed 21 selfloop flow, removed 5 redundant places. [2022-12-13 16:34:07,622 INFO L231 Difference]: Finished difference. Result has 60 places, 35 transitions, 208 flow [2022-12-13 16:34:07,622 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=14, PETRI_FLOW=208, PETRI_PLACES=60, PETRI_TRANSITIONS=35} [2022-12-13 16:34:07,623 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 8 predicate places. [2022-12-13 16:34:07,623 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 35 transitions, 208 flow [2022-12-13 16:34:07,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 170.53333333333333) internal successors, (2558), 15 states have internal predecessors, (2558), 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 16:34:07,624 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:34:07,624 INFO L209 CegarLoopForPetriNet]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:34:07,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 16:34:07,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:34:07,826 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 16:34:07,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:34:07,827 INFO L85 PathProgramCache]: Analyzing trace with hash -2037023853, now seen corresponding path program 4 times [2022-12-13 16:34:07,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:34:07,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813714657] [2022-12-13 16:34:07,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:34:07,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:34:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:34:07,916 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:34:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:34:07,993 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:34:07,993 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 16:34:07,994 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2022-12-13 16:34:07,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2022-12-13 16:34:07,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2022-12-13 16:34:07,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2022-12-13 16:34:07,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2022-12-13 16:34:07,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2022-12-13 16:34:07,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2022-12-13 16:34:07,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2022-12-13 16:34:07,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2022-12-13 16:34:07,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2022-12-13 16:34:07,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2022-12-13 16:34:07,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2022-12-13 16:34:07,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2022-12-13 16:34:07,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2022-12-13 16:34:07,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2022-12-13 16:34:07,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2022-12-13 16:34:07,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 46 remaining) [2022-12-13 16:34:07,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 46 remaining) [2022-12-13 16:34:07,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2022-12-13 16:34:07,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2022-12-13 16:34:07,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2022-12-13 16:34:07,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2022-12-13 16:34:07,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2022-12-13 16:34:07,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2022-12-13 16:34:07,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2022-12-13 16:34:07,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2022-12-13 16:34:07,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2022-12-13 16:34:07,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2022-12-13 16:34:07,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2022-12-13 16:34:07,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2022-12-13 16:34:07,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2022-12-13 16:34:07,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2022-12-13 16:34:07,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2022-12-13 16:34:07,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2022-12-13 16:34:07,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2022-12-13 16:34:07,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2022-12-13 16:34:07,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2022-12-13 16:34:07,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2022-12-13 16:34:07,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2022-12-13 16:34:07,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2022-12-13 16:34:07,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2022-12-13 16:34:07,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2022-12-13 16:34:08,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2022-12-13 16:34:08,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2022-12-13 16:34:08,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2022-12-13 16:34:08,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2022-12-13 16:34:08,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 16:34:08,000 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2022-12-13 16:34:08,005 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 16:34:08,005 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:34:08,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:34:08 BasicIcfg [2022-12-13 16:34:08,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:34:08,041 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:34:08,041 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:34:08,041 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:34:08,042 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:34:01" (3/4) ... [2022-12-13 16:34:08,044 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 16:34:08,044 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:34:08,044 INFO L158 Benchmark]: Toolchain (without parser) took 7446.94ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 102.4MB in the beginning and 88.6MB in the end (delta: 13.9MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. [2022-12-13 16:34:08,045 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 134.2MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:34:08,045 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.69ms. Allocated memory is still 134.2MB. Free memory was 102.0MB in the beginning and 81.6MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 16:34:08,045 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.47ms. Allocated memory is still 134.2MB. Free memory was 81.6MB in the beginning and 79.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:34:08,045 INFO L158 Benchmark]: Boogie Preprocessor took 27.59ms. Allocated memory is still 134.2MB. Free memory was 79.4MB in the beginning and 77.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:34:08,045 INFO L158 Benchmark]: RCFGBuilder took 418.65ms. Allocated memory is still 134.2MB. Free memory was 77.8MB in the beginning and 56.5MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 16:34:08,046 INFO L158 Benchmark]: TraceAbstraction took 6583.86ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 55.6MB in the beginning and 89.6MB in the end (delta: -34.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:34:08,046 INFO L158 Benchmark]: Witness Printer took 2.89ms. Allocated memory is still 161.5MB. Free memory was 89.6MB in the beginning and 88.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:34:08,047 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 134.2MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 370.69ms. Allocated memory is still 134.2MB. Free memory was 102.0MB in the beginning and 81.6MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.47ms. Allocated memory is still 134.2MB. Free memory was 81.6MB in the beginning and 79.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.59ms. Allocated memory is still 134.2MB. Free memory was 79.4MB in the beginning and 77.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 418.65ms. Allocated memory is still 134.2MB. Free memory was 77.8MB in the beginning and 56.5MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 6583.86ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 55.6MB in the beginning and 89.6MB in the end (delta: -34.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.89ms. Allocated memory is still 161.5MB. Free memory was 89.6MB in the beginning and 88.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.2s, 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)=237, arg={0:0}, argc=237, argv={236:235}, argv={236:235}, 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)=237, arg={0:0}, arg={0:0}, arg={0:0}, argc=237, argv={236:235}, argv={236:235}, 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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND FALSE 0 !(x < 12) [L711] 0 return prev; [L723] RET, EXPR 0 fib() [L723] 0 int correct = fib(); [L725] 0 i < correct VAL [\old(argc)=237, arg={0:0}, arg={0:0}, arg={0:0}, argc=237, argv={236:235}, argv={236:235}, correct=144, cur=233, i=1, id1={3:0}, id2={5:0}, j=1, next=233, p=0, prev=144, q=0, x=12] [L688] 1 p < 5 [L688] COND TRUE 1 p < 5 [L690] 1 i += j [L688] 1 p++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=2, j=1, next=233, p=1, prev=144, q=0, x=12] [L725] 0 i < correct VAL [\old(argc)=237, arg={0:0}, arg={0:0}, arg={0:0}, argc=237, argv={236:235}, argv={236:235}, correct=144, cur=233, i=2, id1={3:0}, id2={5:0}, j=1, next=233, p=1, prev=144, q=0, x=12] Now there is a data race on ~i~0 between C: 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: 6.4s, OverallIterations: 7, TraceHistogramMax: 12, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 466 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 444 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 425 IncrementalHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 4 mSDtfsCounter, 425 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 73 SyntacticMatches, 10 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=208occurred in iteration=6, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 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 16:34:08,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3a33ec3-7426-429c-9d74-58cdc946bd87/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