./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/fib_safe-12-racy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a 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_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/fib_safe-12-racy.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R --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 d91b46fd69b3013c60bad92e46ce1ef1ddf2b09c97cd6d95697162ae1af201f2 --- 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-38b53e6 [2022-11-25 16:57:35,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:57:35,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:57:35,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:57:35,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:57:35,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:57:35,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:57:35,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:57:35,265 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:57:35,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:57:35,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:57:35,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:57:35,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:57:35,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:57:35,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:57:35,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:57:35,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:57:35,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:57:35,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:57:35,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:57:35,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:57:35,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:57:35,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:57:35,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:57:35,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:57:35,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:57:35,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:57:35,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:57:35,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:57:35,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:57:35,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:57:35,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:57:35,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:57:35,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:57:35,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:57:35,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:57:35,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:57:35,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:57:35,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:57:35,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:57:35,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:57:35,328 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 16:57:35,362 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:57:35,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:57:35,365 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:57:35,365 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:57:35,366 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:57:35,366 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:57:35,367 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:57:35,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:57:35,367 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:57:35,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:57:35,369 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:57:35,369 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:57:35,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:57:35,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:57:35,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:57:35,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:57:35,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:57:35,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:57:35,371 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 16:57:35,373 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:57:35,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:57:35,378 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:57:35,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:57:35,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:57:35,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:57:35,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:57:35,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:57:35,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:57:35,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:57:35,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:57:35,383 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:57:35,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:57:35,383 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:57:35,384 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:57:35,384 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:57:35,384 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:57:35,384 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_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d91b46fd69b3013c60bad92e46ce1ef1ddf2b09c97cd6d95697162ae1af201f2 [2022-11-25 16:57:35,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:57:35,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:57:35,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:57:35,681 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:57:35,682 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:57:35,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread/fib_safe-12-racy.i [2022-11-25 16:57:38,856 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:57:39,192 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:57:39,193 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/sv-benchmarks/c/pthread/fib_safe-12-racy.i [2022-11-25 16:57:39,214 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/data/9e668b8a7/16a5045144d84f8ba7d7c4d1a613aa96/FLAG17ba91be4 [2022-11-25 16:57:39,229 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/data/9e668b8a7/16a5045144d84f8ba7d7c4d1a613aa96 [2022-11-25 16:57:39,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:57:39,234 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:57:39,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:57:39,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:57:39,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:57:39,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:57:39" (1/1) ... [2022-11-25 16:57:39,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@494a3b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:39, skipping insertion in model container [2022-11-25 16:57:39,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:57:39" (1/1) ... [2022-11-25 16:57:39,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:57:39,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:57:39,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:57:39,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:57:39,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:57:39,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:57:39,680 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:57:39,682 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:57:39,682 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:57:39,683 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:57:39,690 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_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/sv-benchmarks/c/pthread/fib_safe-12-racy.i[30815,30828] [2022-11-25 16:57:39,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:57:39,707 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:57:39,768 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:57:39,775 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:57:39,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:57:39,778 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:57:39,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:57:39,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:57:39,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:57:39,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:57:39,785 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_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/sv-benchmarks/c/pthread/fib_safe-12-racy.i[30815,30828] [2022-11-25 16:57:39,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:57:39,815 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:57:39,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:39 WrapperNode [2022-11-25 16:57:39,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:57:39,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:57:39,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:57:39,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:57:39,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:39" (1/1) ... [2022-11-25 16:57:39,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:39" (1/1) ... [2022-11-25 16:57:39,858 INFO L138 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 122 [2022-11-25 16:57:39,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:57:39,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:57:39,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:57:39,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:57:39,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:39" (1/1) ... [2022-11-25 16:57:39,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:39" (1/1) ... [2022-11-25 16:57:39,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:39" (1/1) ... [2022-11-25 16:57:39,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:39" (1/1) ... [2022-11-25 16:57:39,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:39" (1/1) ... [2022-11-25 16:57:39,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:39" (1/1) ... [2022-11-25 16:57:39,921 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:39" (1/1) ... [2022-11-25 16:57:39,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:39" (1/1) ... [2022-11-25 16:57:39,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:57:39,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:57:39,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:57:39,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:57:39,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:39" (1/1) ... [2022-11-25 16:57:39,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:57:39,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:40,001 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:57:40,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:57:40,043 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-25 16:57:40,043 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-25 16:57:40,043 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-25 16:57:40,043 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-25 16:57:40,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 16:57:40,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 16:57:40,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:57:40,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 16:57:40,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 16:57:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:57:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 16:57:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:57:40,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:57:40,047 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 16:57:40,182 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:57:40,184 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:57:40,516 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:57:40,575 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:57:40,575 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-25 16:57:40,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:57:40 BoogieIcfgContainer [2022-11-25 16:57:40,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:57:40,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:57:40,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:57:40,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:57:40,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:57:39" (1/3) ... [2022-11-25 16:57:40,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d86807f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:57:40, skipping insertion in model container [2022-11-25 16:57:40,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:39" (2/3) ... [2022-11-25 16:57:40,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d86807f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:57:40, skipping insertion in model container [2022-11-25 16:57:40,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:57:40" (3/3) ... [2022-11-25 16:57:40,593 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-12-racy.i [2022-11-25 16:57:40,603 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 16:57:40,615 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:57:40,616 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-11-25 16:57:40,616 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 16:57:40,707 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 16:57:40,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 193 transitions, 396 flow [2022-11-25 16:57:40,966 INFO L130 PetriNetUnfolder]: 8/191 cut-off events. [2022-11-25 16:57:40,967 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:57:40,977 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 366 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. [2022-11-25 16:57:40,977 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 193 transitions, 396 flow [2022-11-25 16:57:40,987 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 191 transitions, 388 flow [2022-11-25 16:57:40,991 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 16:57:41,033 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 190 places, 191 transitions, 388 flow [2022-11-25 16:57:41,049 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 190 places, 191 transitions, 388 flow [2022-11-25 16:57:41,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 191 transitions, 388 flow [2022-11-25 16:57:41,125 INFO L130 PetriNetUnfolder]: 8/191 cut-off events. [2022-11-25 16:57:41,126 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:57:41,128 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 365 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. [2022-11-25 16:57:41,135 INFO L119 LiptonReduction]: Number of co-enabled transitions 13080 [2022-11-25 16:57:46,288 INFO L134 LiptonReduction]: Checked pairs total: 13965 [2022-11-25 16:57:46,289 INFO L136 LiptonReduction]: Total number of compositions: 214 [2022-11-25 16:57:46,305 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:57:46,311 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;@316d582c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:57:46,312 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2022-11-25 16:57:46,313 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 16:57:46,314 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:57:46,314 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:46,314 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 16:57:46,315 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)] === [2022-11-25 16:57:46,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:46,320 INFO L85 PathProgramCache]: Analyzing trace with hash 776, now seen corresponding path program 1 times [2022-11-25 16:57:46,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:46,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030966025] [2022-11-25 16:57:46,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:46,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:46,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:46,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:46,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030966025] [2022-11-25 16:57:46,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030966025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:46,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:46,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 16:57:46,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995438766] [2022-11-25 16:57:46,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:46,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 16:57:46,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:46,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 16:57:46,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 16:57:46,515 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 407 [2022-11-25 16:57:46,521 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 102 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) [2022-11-25 16:57:46,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:46,521 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 407 [2022-11-25 16:57:46,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:46,618 INFO L130 PetriNetUnfolder]: 97/173 cut-off events. [2022-11-25 16:57:46,620 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 16:57:46,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 173 events. 97/173 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 490 event pairs, 56 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 324. Up to 150 conditions per place. [2022-11-25 16:57:46,627 INFO L137 encePairwiseOnDemand]: 378/407 looper letters, 14 selfloop transitions, 0 changer transitions 1/19 dead transitions. [2022-11-25 16:57:46,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 74 flow [2022-11-25 16:57:46,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 16:57:46,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 16:57:46,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 392 transitions. [2022-11-25 16:57:46,651 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48157248157248156 [2022-11-25 16:57:46,652 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 392 transitions. [2022-11-25 16:57:46,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 392 transitions. [2022-11-25 16:57:46,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:46,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 392 transitions. [2022-11-25 16:57:46,665 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) [2022-11-25 16:57:46,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 407.0) internal successors, (1221), 3 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:46,679 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 407.0) internal successors, (1221), 3 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:46,681 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 102 flow. Second operand 2 states and 392 transitions. [2022-11-25 16:57:46,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 74 flow [2022-11-25 16:57:46,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 19 transitions, 72 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 16:57:46,686 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 40 flow [2022-11-25 16:57:46,689 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=22, PETRI_TRANSITIONS=18} [2022-11-25 16:57:46,693 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -29 predicate places. [2022-11-25 16:57:46,693 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 40 flow [2022-11-25 16:57:46,699 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) [2022-11-25 16:57:46,699 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:46,699 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:46,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 16:57:46,700 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)] === [2022-11-25 16:57:46,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:46,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1383983550, now seen corresponding path program 1 times [2022-11-25 16:57:46,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:46,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293913688] [2022-11-25 16:57:46,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:46,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:46,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:46,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:46,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293913688] [2022-11-25 16:57:46,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293913688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:46,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:46,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:57:46,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833769496] [2022-11-25 16:57:46,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:46,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:57:46,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:46,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:57:46,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:57:46,936 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 407 [2022-11-25 16:57:46,937 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 40 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) [2022-11-25 16:57:46,937 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:46,938 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 407 [2022-11-25 16:57:46,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:46,988 INFO L130 PetriNetUnfolder]: 97/185 cut-off events. [2022-11-25 16:57:46,988 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:57:46,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 185 events. 97/185 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 565 event pairs, 20 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 342. Up to 91 conditions per place. [2022-11-25 16:57:46,990 INFO L137 encePairwiseOnDemand]: 404/407 looper letters, 19 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2022-11-25 16:57:46,990 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 25 transitions, 96 flow [2022-11-25 16:57:46,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:57:46,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 16:57:46,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 532 transitions. [2022-11-25 16:57:46,993 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4357084357084357 [2022-11-25 16:57:46,993 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 532 transitions. [2022-11-25 16:57:46,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 532 transitions. [2022-11-25 16:57:46,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:46,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 532 transitions. [2022-11-25 16:57:46,995 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) [2022-11-25 16:57:46,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 407.0) internal successors, (1628), 4 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:46,999 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 407.0) internal successors, (1628), 4 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:46,999 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 40 flow. Second operand 3 states and 532 transitions. [2022-11-25 16:57:47,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 25 transitions, 96 flow [2022-11-25 16:57:47,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 25 transitions, 96 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 16:57:47,001 INFO L231 Difference]: Finished difference. Result has 24 places, 19 transitions, 52 flow [2022-11-25 16:57:47,001 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=24, PETRI_TRANSITIONS=19} [2022-11-25 16:57:47,002 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -27 predicate places. [2022-11-25 16:57:47,002 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 19 transitions, 52 flow [2022-11-25 16:57:47,003 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) [2022-11-25 16:57:47,003 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:47,003 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:47,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 16:57:47,004 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)] === [2022-11-25 16:57:47,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:47,004 INFO L85 PathProgramCache]: Analyzing trace with hash -46153869, now seen corresponding path program 1 times [2022-11-25 16:57:47,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:47,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169159445] [2022-11-25 16:57:47,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:47,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:47,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:47,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:47,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169159445] [2022-11-25 16:57:47,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169159445] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:47,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344448331] [2022-11-25 16:57:47,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:47,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:47,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:47,099 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:47,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 16:57:47,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:47,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 16:57:47,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:47,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 16:57:47,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:57:47,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344448331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:47,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 16:57:47,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 16:57:47,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744830496] [2022-11-25 16:57:47,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:47,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:57:47,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:47,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:57:47,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:57:47,268 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 407 [2022-11-25 16:57:47,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 19 transitions, 52 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) [2022-11-25 16:57:47,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:47,269 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 407 [2022-11-25 16:57:47,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:47,369 INFO L130 PetriNetUnfolder]: 203/328 cut-off events. [2022-11-25 16:57:47,385 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-11-25 16:57:47,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 712 conditions, 328 events. 203/328 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1013 event pairs, 51 based on Foata normal form. 0/221 useless extension candidates. Maximal degree in co-relation 707. Up to 156 conditions per place. [2022-11-25 16:57:47,388 INFO L137 encePairwiseOnDemand]: 402/407 looper letters, 25 selfloop transitions, 4 changer transitions 0/31 dead transitions. [2022-11-25 16:57:47,388 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 31 transitions, 141 flow [2022-11-25 16:57:47,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:57:47,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 16:57:47,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 541 transitions. [2022-11-25 16:57:47,401 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4430794430794431 [2022-11-25 16:57:47,401 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 541 transitions. [2022-11-25 16:57:47,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 541 transitions. [2022-11-25 16:57:47,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:47,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 541 transitions. [2022-11-25 16:57:47,403 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) [2022-11-25 16:57:47,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 407.0) internal successors, (1628), 4 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:47,407 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 407.0) internal successors, (1628), 4 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:47,407 INFO L175 Difference]: Start difference. First operand has 24 places, 19 transitions, 52 flow. Second operand 3 states and 541 transitions. [2022-11-25 16:57:47,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 31 transitions, 141 flow [2022-11-25 16:57:47,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 31 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 16:57:47,408 INFO L231 Difference]: Finished difference. Result has 27 places, 23 transitions, 86 flow [2022-11-25 16:57:47,409 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=27, PETRI_TRANSITIONS=23} [2022-11-25 16:57:47,409 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -24 predicate places. [2022-11-25 16:57:47,409 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 23 transitions, 86 flow [2022-11-25 16:57:47,410 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) [2022-11-25 16:57:47,410 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:47,410 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:47,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 16:57:47,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:47,615 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)] === [2022-11-25 16:57:47,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:47,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1871494443, now seen corresponding path program 1 times [2022-11-25 16:57:47,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:47,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567503378] [2022-11-25 16:57:47,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:47,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:47,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:47,721 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:47,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:47,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567503378] [2022-11-25 16:57:47,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567503378] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:47,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025441309] [2022-11-25 16:57:47,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:47,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:47,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:47,724 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:47,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 16:57:47,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:47,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 16:57:47,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:47,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:47,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:57:47,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:47,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025441309] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:57:47,892 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:57:47,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-25 16:57:47,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399646896] [2022-11-25 16:57:47,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:57:47,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:57:47,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:47,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:57:47,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:57:47,923 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 407 [2022-11-25 16:57:47,926 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 23 transitions, 86 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) [2022-11-25 16:57:47,926 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:47,926 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 407 [2022-11-25 16:57:47,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:48,066 INFO L130 PetriNetUnfolder]: 271/450 cut-off events. [2022-11-25 16:57:48,067 INFO L131 PetriNetUnfolder]: For 202/205 co-relation queries the response was YES. [2022-11-25 16:57:48,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1161 conditions, 450 events. 271/450 cut-off events. For 202/205 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1438 event pairs, 42 based on Foata normal form. 45/479 useless extension candidates. Maximal degree in co-relation 1155. Up to 182 conditions per place. [2022-11-25 16:57:48,070 INFO L137 encePairwiseOnDemand]: 404/407 looper letters, 48 selfloop transitions, 5 changer transitions 0/58 dead transitions. [2022-11-25 16:57:48,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 58 transitions, 316 flow [2022-11-25 16:57:48,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:57:48,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 16:57:48,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1059 transitions. [2022-11-25 16:57:48,074 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43366093366093367 [2022-11-25 16:57:48,074 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1059 transitions. [2022-11-25 16:57:48,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1059 transitions. [2022-11-25 16:57:48,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:48,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1059 transitions. [2022-11-25 16:57:48,077 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) [2022-11-25 16:57:48,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 407.0) internal successors, (2849), 7 states have internal predecessors, (2849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:48,084 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 407.0) internal successors, (2849), 7 states have internal predecessors, (2849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:48,084 INFO L175 Difference]: Start difference. First operand has 27 places, 23 transitions, 86 flow. Second operand 6 states and 1059 transitions. [2022-11-25 16:57:48,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 58 transitions, 316 flow [2022-11-25 16:57:48,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 58 transitions, 292 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 16:57:48,089 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 120 flow [2022-11-25 16:57:48,089 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=120, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2022-11-25 16:57:48,090 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -18 predicate places. [2022-11-25 16:57:48,091 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 120 flow [2022-11-25 16:57:48,091 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) [2022-11-25 16:57:48,092 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:48,092 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:48,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 16:57:48,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:48,298 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)] === [2022-11-25 16:57:48,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:48,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1299719790, now seen corresponding path program 2 times [2022-11-25 16:57:48,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:48,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788727600] [2022-11-25 16:57:48,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:48,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:48,481 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:48,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:48,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788727600] [2022-11-25 16:57:48,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788727600] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:48,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717402954] [2022-11-25 16:57:48,482 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 16:57:48,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:48,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:48,484 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:48,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 16:57:48,590 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 16:57:48,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:57:48,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 16:57:48,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:48,621 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:48,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:57:48,690 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:48,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717402954] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:57:48,691 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:57:48,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-11-25 16:57:48,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447706229] [2022-11-25 16:57:48,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:57:48,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:57:48,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:48,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:57:48,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:57:48,725 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 407 [2022-11-25 16:57:48,728 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 120 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) [2022-11-25 16:57:48,728 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:48,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 407 [2022-11-25 16:57:48,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:48,947 INFO L130 PetriNetUnfolder]: 451/720 cut-off events. [2022-11-25 16:57:48,947 INFO L131 PetriNetUnfolder]: For 810/813 co-relation queries the response was YES. [2022-11-25 16:57:48,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2055 conditions, 720 events. 451/720 cut-off events. For 810/813 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2233 event pairs, 42 based on Foata normal form. 90/791 useless extension candidates. Maximal degree in co-relation 2046. Up to 182 conditions per place. [2022-11-25 16:57:48,953 INFO L137 encePairwiseOnDemand]: 404/407 looper letters, 96 selfloop transitions, 11 changer transitions 0/112 dead transitions. [2022-11-25 16:57:48,953 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 112 transitions, 610 flow [2022-11-25 16:57:48,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 16:57:48,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 16:57:48,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2118 transitions. [2022-11-25 16:57:48,959 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43366093366093367 [2022-11-25 16:57:48,959 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2118 transitions. [2022-11-25 16:57:48,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2118 transitions. [2022-11-25 16:57:48,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:48,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2118 transitions. [2022-11-25 16:57:48,966 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) [2022-11-25 16:57:48,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 407.0) internal successors, (5291), 13 states have internal predecessors, (5291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:48,977 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 407.0) internal successors, (5291), 13 states have internal predecessors, (5291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:48,977 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 120 flow. Second operand 12 states and 2118 transitions. [2022-11-25 16:57:48,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 112 transitions, 610 flow [2022-11-25 16:57:48,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 112 transitions, 596 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-11-25 16:57:48,988 INFO L231 Difference]: Finished difference. Result has 49 places, 32 transitions, 202 flow [2022-11-25 16:57:48,991 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=202, PETRI_PLACES=49, PETRI_TRANSITIONS=32} [2022-11-25 16:57:48,994 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -2 predicate places. [2022-11-25 16:57:48,994 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 32 transitions, 202 flow [2022-11-25 16:57:48,995 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) [2022-11-25 16:57:48,995 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:48,995 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:49,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 16:57:49,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:49,204 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)] === [2022-11-25 16:57:49,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:49,204 INFO L85 PathProgramCache]: Analyzing trace with hash 465616206, now seen corresponding path program 3 times [2022-11-25 16:57:49,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:49,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706372517] [2022-11-25 16:57:49,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:49,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:49,429 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:49,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:49,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706372517] [2022-11-25 16:57:49,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706372517] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:49,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002530341] [2022-11-25 16:57:49,430 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 16:57:49,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:49,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:49,436 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:49,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 16:57:49,561 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-25 16:57:49,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:57:49,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 16:57:49,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:49,597 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:49,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:57:49,825 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:49,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002530341] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:57:49,825 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:57:49,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-11-25 16:57:49,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646520529] [2022-11-25 16:57:49,825 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:57:49,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-25 16:57:49,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:49,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-25 16:57:49,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-11-25 16:57:49,891 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 407 [2022-11-25 16:57:49,895 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 32 transitions, 202 flow. Second operand has 25 states, 25 states have (on average 170.28) internal successors, (4257), 25 states have internal predecessors, (4257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:49,896 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:49,896 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 407 [2022-11-25 16:57:49,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:50,365 INFO L130 PetriNetUnfolder]: 811/1260 cut-off events. [2022-11-25 16:57:50,365 INFO L131 PetriNetUnfolder]: For 9042/9045 co-relation queries the response was YES. [2022-11-25 16:57:50,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4069 conditions, 1260 events. 811/1260 cut-off events. For 9042/9045 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3822 event pairs, 42 based on Foata normal form. 180/1421 useless extension candidates. Maximal degree in co-relation 4053. Up to 316 conditions per place. [2022-11-25 16:57:50,374 INFO L137 encePairwiseOnDemand]: 404/407 looper letters, 192 selfloop transitions, 23 changer transitions 0/220 dead transitions. [2022-11-25 16:57:50,375 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 220 transitions, 1256 flow [2022-11-25 16:57:50,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 16:57:50,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-25 16:57:50,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4236 transitions. [2022-11-25 16:57:50,386 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43366093366093367 [2022-11-25 16:57:50,386 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4236 transitions. [2022-11-25 16:57:50,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4236 transitions. [2022-11-25 16:57:50,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:50,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4236 transitions. [2022-11-25 16:57:50,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 176.5) internal successors, (4236), 24 states have internal predecessors, (4236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:50,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 407.0) internal successors, (10175), 25 states have internal predecessors, (10175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:50,416 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 407.0) internal successors, (10175), 25 states have internal predecessors, (10175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:50,416 INFO L175 Difference]: Start difference. First operand has 49 places, 32 transitions, 202 flow. Second operand 24 states and 4236 transitions. [2022-11-25 16:57:50,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 220 transitions, 1256 flow [2022-11-25 16:57:50,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 220 transitions, 1184 flow, removed 31 selfloop flow, removed 5 redundant places. [2022-11-25 16:57:50,429 INFO L231 Difference]: Finished difference. Result has 79 places, 44 transitions, 346 flow [2022-11-25 16:57:50,429 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=346, PETRI_PLACES=79, PETRI_TRANSITIONS=44} [2022-11-25 16:57:50,431 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, 28 predicate places. [2022-11-25 16:57:50,431 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 44 transitions, 346 flow [2022-11-25 16:57:50,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 170.28) internal successors, (4257), 25 states have internal predecessors, (4257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:50,434 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:50,434 INFO L209 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:50,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 16:57:50,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:50,639 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)] === [2022-11-25 16:57:50,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:50,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1592914702, now seen corresponding path program 4 times [2022-11-25 16:57:50,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:50,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146300214] [2022-11-25 16:57:50,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:50,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:51,340 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:51,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:51,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146300214] [2022-11-25 16:57:51,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146300214] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:51,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378247623] [2022-11-25 16:57:51,341 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 16:57:51,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:51,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:51,347 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:51,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 16:57:51,517 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 16:57:51,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:57:51,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-25 16:57:51,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:51,591 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:51,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:57:52,015 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:52,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378247623] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:57:52,018 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:57:52,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 29 [2022-11-25 16:57:52,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303710533] [2022-11-25 16:57:52,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:57:52,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-25 16:57:52,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:52,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-25 16:57:52,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2022-11-25 16:57:52,088 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 407 [2022-11-25 16:57:52,093 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 44 transitions, 346 flow. Second operand has 29 states, 29 states have (on average 170.27586206896552) internal successors, (4938), 29 states have internal predecessors, (4938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:52,093 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:52,093 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 407 [2022-11-25 16:57:52,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:52,638 INFO L130 PetriNetUnfolder]: 931/1440 cut-off events. [2022-11-25 16:57:52,638 INFO L131 PetriNetUnfolder]: For 17456/17459 co-relation queries the response was YES. [2022-11-25 16:57:52,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4845 conditions, 1440 events. 931/1440 cut-off events. For 17456/17459 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4348 event pairs, 42 based on Foata normal form. 60/1481 useless extension candidates. Maximal degree in co-relation 4817. Up to 313 conditions per place. [2022-11-25 16:57:52,650 INFO L137 encePairwiseOnDemand]: 404/407 looper letters, 224 selfloop transitions, 27 changer transitions 0/256 dead transitions. [2022-11-25 16:57:52,651 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 256 transitions, 1504 flow [2022-11-25 16:57:52,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-25 16:57:52,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-25 16:57:52,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4932 transitions. [2022-11-25 16:57:52,662 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4327834327834328 [2022-11-25 16:57:52,662 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 4932 transitions. [2022-11-25 16:57:52,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 4932 transitions. [2022-11-25 16:57:52,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:52,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 4932 transitions. [2022-11-25 16:57:52,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 176.14285714285714) internal successors, (4932), 28 states have internal predecessors, (4932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:52,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 407.0) internal successors, (11803), 29 states have internal predecessors, (11803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:52,696 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 407.0) internal successors, (11803), 29 states have internal predecessors, (11803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:52,696 INFO L175 Difference]: Start difference. First operand has 79 places, 44 transitions, 346 flow. Second operand 28 states and 4932 transitions. [2022-11-25 16:57:52,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 256 transitions, 1504 flow [2022-11-25 16:57:52,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 256 transitions, 1400 flow, removed 41 selfloop flow, removed 11 redundant places. [2022-11-25 16:57:52,716 INFO L231 Difference]: Finished difference. Result has 99 places, 48 transitions, 354 flow [2022-11-25 16:57:52,716 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=354, PETRI_PLACES=99, PETRI_TRANSITIONS=48} [2022-11-25 16:57:52,717 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, 48 predicate places. [2022-11-25 16:57:52,717 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 48 transitions, 354 flow [2022-11-25 16:57:52,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 170.27586206896552) internal successors, (4938), 29 states have internal predecessors, (4938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:52,719 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:52,719 INFO L209 CegarLoopForPetriNet]: trace histogram [26, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:52,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 16:57:52,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 16:57:52,928 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-25 16:57:52,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:52,928 INFO L85 PathProgramCache]: Analyzing trace with hash 232200782, now seen corresponding path program 5 times [2022-11-25 16:57:52,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:52,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873943332] [2022-11-25 16:57:52,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:52,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:53,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:57:53,039 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 16:57:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:57:53,175 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 16:57:53,175 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 16:57:53,177 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2022-11-25 16:57:53,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2022-11-25 16:57:53,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2022-11-25 16:57:53,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2022-11-25 16:57:53,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2022-11-25 16:57:53,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2022-11-25 16:57:53,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2022-11-25 16:57:53,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2022-11-25 16:57:53,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2022-11-25 16:57:53,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2022-11-25 16:57:53,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2022-11-25 16:57:53,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2022-11-25 16:57:53,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2022-11-25 16:57:53,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2022-11-25 16:57:53,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2022-11-25 16:57:53,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2022-11-25 16:57:53,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 46 remaining) [2022-11-25 16:57:53,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 46 remaining) [2022-11-25 16:57:53,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2022-11-25 16:57:53,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2022-11-25 16:57:53,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2022-11-25 16:57:53,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2022-11-25 16:57:53,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2022-11-25 16:57:53,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2022-11-25 16:57:53,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2022-11-25 16:57:53,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2022-11-25 16:57:53,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2022-11-25 16:57:53,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2022-11-25 16:57:53,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2022-11-25 16:57:53,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2022-11-25 16:57:53,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2022-11-25 16:57:53,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2022-11-25 16:57:53,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2022-11-25 16:57:53,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2022-11-25 16:57:53,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2022-11-25 16:57:53,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2022-11-25 16:57:53,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2022-11-25 16:57:53,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2022-11-25 16:57:53,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2022-11-25 16:57:53,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2022-11-25 16:57:53,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2022-11-25 16:57:53,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2022-11-25 16:57:53,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2022-11-25 16:57:53,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2022-11-25 16:57:53,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2022-11-25 16:57:53,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2022-11-25 16:57:53,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 16:57:53,190 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1] [2022-11-25 16:57:53,198 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 16:57:53,198 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 16:57:53,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 04:57:53 BasicIcfg [2022-11-25 16:57:53,323 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 16:57:53,323 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 16:57:53,323 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 16:57:53,324 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 16:57:53,324 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:57:40" (3/4) ... [2022-11-25 16:57:53,327 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 16:57:53,327 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 16:57:53,327 INFO L158 Benchmark]: Toolchain (without parser) took 14093.93ms. Allocated memory was 146.8MB in the beginning and 220.2MB in the end (delta: 73.4MB). Free memory was 116.4MB in the beginning and 74.0MB in the end (delta: 42.4MB). Peak memory consumption was 117.0MB. Max. memory is 16.1GB. [2022-11-25 16:57:53,328 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:57:53,328 INFO L158 Benchmark]: CACSL2BoogieTranslator took 581.19ms. Allocated memory is still 146.8MB. Free memory was 116.4MB in the beginning and 95.5MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 16:57:53,328 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.04ms. Allocated memory is still 146.8MB. Free memory was 95.5MB in the beginning and 93.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:57:53,328 INFO L158 Benchmark]: Boogie Preprocessor took 66.11ms. Allocated memory is still 146.8MB. Free memory was 93.4MB in the beginning and 91.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:57:53,329 INFO L158 Benchmark]: RCFGBuilder took 652.84ms. Allocated memory is still 146.8MB. Free memory was 91.9MB in the beginning and 70.3MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 16:57:53,329 INFO L158 Benchmark]: TraceAbstraction took 12741.28ms. Allocated memory was 146.8MB in the beginning and 220.2MB in the end (delta: 73.4MB). Free memory was 69.3MB in the beginning and 74.0MB in the end (delta: -4.7MB). Peak memory consumption was 70.8MB. Max. memory is 16.1GB. [2022-11-25 16:57:53,329 INFO L158 Benchmark]: Witness Printer took 3.60ms. Allocated memory is still 220.2MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:57:53,331 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 581.19ms. Allocated memory is still 146.8MB. Free memory was 116.4MB in the beginning and 95.5MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.04ms. Allocated memory is still 146.8MB. Free memory was 95.5MB in the beginning and 93.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.11ms. Allocated memory is still 146.8MB. Free memory was 93.4MB in the beginning and 91.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 652.84ms. Allocated memory is still 146.8MB. Free memory was 91.9MB in the beginning and 70.3MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 12741.28ms. Allocated memory was 146.8MB in the beginning and 220.2MB in the end (delta: 73.4MB). Free memory was 69.3MB in the beginning and 74.0MB in the end (delta: -4.7MB). Peak memory consumption was 70.8MB. Max. memory is 16.1GB. * Witness Printer took 3.60ms. Allocated memory is still 220.2MB. Free memory is still 74.0MB. 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: 5.2s, 190 PlacesBefore, 51 PlacesAfterwards, 191 TransitionsBefore, 48 TransitionsAfterwards, 13080 CoEnabledTransitionPairs, 8 FixpointIterations, 35 TrivialSequentialCompositions, 163 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 4 ChoiceCompositions, 214 TotalNumberOfCompositions, 13965 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12121, independent: 12009, independent conditional: 0, independent unconditional: 12009, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8089, independent: 8034, independent conditional: 0, independent unconditional: 8034, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8089, independent: 7936, independent conditional: 0, independent unconditional: 7936, dependent: 153, dependent conditional: 0, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 153, independent: 98, independent conditional: 0, independent unconditional: 98, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 237, independent: 108, independent conditional: 0, independent unconditional: 108, dependent: 129, dependent conditional: 0, dependent unconditional: 129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12121, independent: 3975, independent conditional: 0, independent unconditional: 3975, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 8089, unknown conditional: 0, unknown unconditional: 8089] , Statistics on independence cache: Total cache size (in pairs): 185, Positive cache size: 175, Positive conditional cache size: 0, Positive unconditional cache size: 175, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, 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)=196419, arg={0:0}, argc=196419, argv={196420:196421}, argv={196420:196421}, 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))=-1, 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)=196419, arg={0:0}, arg={0:0}, arg={0:0}, argc=196419, argv={196420:196421}, argv={196420:196421}, 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))=0, q=0, x=0] [L723] CALL, EXPR 0 fib() [L706] 0 x = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=377, p=0, prev=233, q=0, x=13] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=610, p=0, prev=377, q=0, x=14] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=987, p=0, prev=610, q=0, x=15] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=2584, i=1, j=1, next=2584, p=0, prev=1597, q=0, x=17] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=4181, i=1, j=1, next=4181, p=0, prev=2584, q=0, x=18] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=6765, i=1, j=1, next=6765, p=0, prev=4181, q=0, x=19] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=10946, i=1, j=1, next=10946, p=0, prev=6765, q=0, x=20] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=17711, i=1, j=1, next=17711, p=0, prev=10946, q=0, x=21] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=28657, i=1, j=1, next=28657, p=0, prev=17711, q=0, x=22] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=46368, i=1, j=1, next=46368, p=0, prev=28657, q=0, x=23] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=75025, i=1, j=1, next=75025, p=0, prev=46368, q=0, x=24] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=121393, i=1, j=1, next=121393, p=0, prev=75025, q=0, x=25] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=1, j=1, next=196418, p=0, prev=121393, q=0, x=26] [L706] 0 x < 26 [L706] COND FALSE 0 !(x < 26) [L711] 0 return prev; [L723] RET, EXPR 0 fib() [L723] 0 int correct = fib(); [L725] 0 i <= correct VAL [\old(argc)=196419, arg={0:0}, arg={0:0}, arg={0:0}, argc=196419, argv={196420:196421}, argv={196420:196421}, correct=121393, cur=196418, i=1, id1={3:0}, id2={5:0}, j=1, next=196418, p=0, prev=121393, q=0, x=26] [L688] 1 p < 12 [L688] COND TRUE 1 p < 12 [L690] EXPR 1 i + j [L690] 1 i = i + j [L688] 1 p++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=2, j=1, next=196418, p=1, prev=121393, q=0, x=26] [L725] 0 i <= correct VAL [\old(argc)=196419, arg={0:0}, arg={0:0}, arg={0:0}, argc=196419, argv={196420:196421}, argv={196420:196421}, correct=121393, cur=196418, i=2, id1={3:0}, id2={5:0}, j=1, next=196418, p=1, prev=121393, q=0, x=26] Now there is a data race on ~i~0 between C: i = i + j [690] and C: i <= correct [725] - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 246 locations, 46 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 12.4s, OverallIterations: 8, TraceHistogramMax: 26, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1148 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1123 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 809 IncrementalHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 4 mSDtfsCounter, 809 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 201 GetRequests, 111 SyntacticMatches, 20 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=354occurred in iteration=7, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 205 NumberOfCodeBlocks, 205 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 227 ConstructedInterpolants, 0 QuantifiedInterpolants, 481 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1085 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 16 InterpolantComputations, 3 PerfectInterpolantSequences, 1/959 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 16:57:53,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3833c4-178d-4ff9-9554-9fc5a8a7c6f3/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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