./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.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_4ec491cf-11ab-4f8f-99e2-1f5a89366f21/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec491cf-11ab-4f8f-99e2-1f5a89366f21/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_4ec491cf-11ab-4f8f-99e2-1f5a89366f21/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec491cf-11ab-4f8f-99e2-1f5a89366f21/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec491cf-11ab-4f8f-99e2-1f5a89366f21/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_4ec491cf-11ab-4f8f-99e2-1f5a89366f21/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 1e7e50acdaac6c5347f0e6861619a1b564ff01a6e5e780f6d69a20f7f739312d --- 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 18:19:13,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:19:13,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:19:13,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:19:13,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:19:13,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:19:13,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:19:13,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:19:13,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:19:13,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:19:13,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:19:13,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:19:13,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:19:13,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:19:13,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:19:13,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:19:13,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:19:13,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:19:13,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:19:13,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:19:13,453 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:19:13,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:19:13,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:19:13,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:19:13,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:19:13,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:19:13,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:19:13,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:19:13,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:19:13,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:19:13,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:19:13,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:19:13,467 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:19:13,468 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:19:13,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:19:13,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:19:13,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:19:13,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:19:13,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:19:13,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:19:13,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:19:13,474 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec491cf-11ab-4f8f-99e2-1f5a89366f21/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 18:19:13,499 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:19:13,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:19:13,499 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:19:13,500 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:19:13,501 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:19:13,501 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:19:13,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:19:13,502 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:19:13,502 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:19:13,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:19:13,503 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:19:13,503 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:19:13,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:19:13,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:19:13,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:19:13,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:19:13,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:19:13,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:19:13,505 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 18:19:13,505 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:19:13,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:19:13,505 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:19:13,506 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:19:13,506 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:19:13,506 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:19:13,506 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:19:13,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:19:13,507 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:19:13,507 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:19:13,507 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:19:13,508 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:19:13,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:19:13,508 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:19:13,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:19:13,509 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:19:13,509 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:19:13,509 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_4ec491cf-11ab-4f8f-99e2-1f5a89366f21/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec491cf-11ab-4f8f-99e2-1f5a89366f21/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e7e50acdaac6c5347f0e6861619a1b564ff01a6e5e780f6d69a20f7f739312d [2022-11-25 18:19:13,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:19:13,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:19:13,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:19:13,827 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:19:13,828 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:19:13,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec491cf-11ab-4f8f-99e2-1f5a89366f21/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i [2022-11-25 18:19:17,002 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:19:17,291 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:19:17,292 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec491cf-11ab-4f8f-99e2-1f5a89366f21/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i [2022-11-25 18:19:17,309 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec491cf-11ab-4f8f-99e2-1f5a89366f21/bin/uautomizer-ZsLfNo2U6R/data/b9a34b856/15599c05330149c187390af64a25502e/FLAGc52d5fcd2 [2022-11-25 18:19:17,326 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec491cf-11ab-4f8f-99e2-1f5a89366f21/bin/uautomizer-ZsLfNo2U6R/data/b9a34b856/15599c05330149c187390af64a25502e [2022-11-25 18:19:17,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:19:17,332 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:19:17,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:19:17,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:19:17,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:19:17,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:19:17" (1/1) ... [2022-11-25 18:19:17,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a5d0ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:17, skipping insertion in model container [2022-11-25 18:19:17,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:19:17" (1/1) ... [2022-11-25 18:19:17,355 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:19:17,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:19:17,766 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_4ec491cf-11ab-4f8f-99e2-1f5a89366f21/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i[30382,30395] [2022-11-25 18:19:17,772 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_4ec491cf-11ab-4f8f-99e2-1f5a89366f21/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i[30752,30765] [2022-11-25 18:19:17,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:19:17,794 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:19:17,861 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_4ec491cf-11ab-4f8f-99e2-1f5a89366f21/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i[30382,30395] [2022-11-25 18:19:17,867 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_4ec491cf-11ab-4f8f-99e2-1f5a89366f21/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i[30752,30765] [2022-11-25 18:19:17,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:19:17,899 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:19:17,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:17 WrapperNode [2022-11-25 18:19:17,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:19:17,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:19:17,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:19:17,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:19:17,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:17" (1/1) ... [2022-11-25 18:19:17,921 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:17" (1/1) ... [2022-11-25 18:19:17,942 INFO L138 Inliner]: procedures = 172, calls = 20, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 140 [2022-11-25 18:19:17,942 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:19:17,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:19:17,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:19:17,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:19:17,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:17" (1/1) ... [2022-11-25 18:19:17,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:17" (1/1) ... [2022-11-25 18:19:17,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:17" (1/1) ... [2022-11-25 18:19:17,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:17" (1/1) ... [2022-11-25 18:19:17,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:17" (1/1) ... [2022-11-25 18:19:17,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:17" (1/1) ... [2022-11-25 18:19:17,986 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:17" (1/1) ... [2022-11-25 18:19:17,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:17" (1/1) ... [2022-11-25 18:19:17,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:19:17,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:19:17,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:19:17,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:19:17,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:17" (1/1) ... [2022-11-25 18:19:18,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:19:18,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec491cf-11ab-4f8f-99e2-1f5a89366f21/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:19:18,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec491cf-11ab-4f8f-99e2-1f5a89366f21/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:19:18,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec491cf-11ab-4f8f-99e2-1f5a89366f21/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:19:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-25 18:19:18,076 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-25 18:19:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:19:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:19:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:19:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:19:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:19:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:19:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:19:18,079 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 18:19:18,198 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:19:18,200 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:19:18,559 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:19:18,708 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:19:18,708 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 18:19:18,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:19:18 BoogieIcfgContainer [2022-11-25 18:19:18,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:19:18,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:19:18,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:19:18,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:19:18,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:19:17" (1/3) ... [2022-11-25 18:19:18,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bae653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:19:18, skipping insertion in model container [2022-11-25 18:19:18,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:17" (2/3) ... [2022-11-25 18:19:18,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bae653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:19:18, skipping insertion in model container [2022-11-25 18:19:18,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:19:18" (3/3) ... [2022-11-25 18:19:18,720 INFO L112 eAbstractionObserver]: Analyzing ICFG 23_lu-fig2.fixed.i [2022-11-25 18:19:18,729 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 18:19:18,737 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:19:18,737 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-25 18:19:18,737 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:19:18,777 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 18:19:18,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 80 transitions, 165 flow [2022-11-25 18:19:18,879 INFO L130 PetriNetUnfolder]: 2/79 cut-off events. [2022-11-25 18:19:18,879 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:19:18,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 79 events. 2/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 97 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-11-25 18:19:18,884 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 80 transitions, 165 flow [2022-11-25 18:19:18,888 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 79 transitions, 161 flow [2022-11-25 18:19:18,896 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:19:18,926 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 79 transitions, 161 flow [2022-11-25 18:19:18,929 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 79 transitions, 161 flow [2022-11-25 18:19:18,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 79 transitions, 161 flow [2022-11-25 18:19:18,981 INFO L130 PetriNetUnfolder]: 2/79 cut-off events. [2022-11-25 18:19:18,981 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:19:18,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 79 events. 2/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 97 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-11-25 18:19:18,983 INFO L119 LiptonReduction]: Number of co-enabled transitions 1554 [2022-11-25 18:19:21,052 INFO L134 LiptonReduction]: Checked pairs total: 5950 [2022-11-25 18:19:21,052 INFO L136 LiptonReduction]: Total number of compositions: 79 [2022-11-25 18:19:21,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:19:21,091 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;@479b296b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:19:21,092 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-11-25 18:19:21,096 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2022-11-25 18:19:21,096 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:19:21,097 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:19:21,098 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 18:19:21,101 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-25 18:19:21,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:19:21,112 INFO L85 PathProgramCache]: Analyzing trace with hash 574452, now seen corresponding path program 1 times [2022-11-25 18:19:21,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:19:21,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854166622] [2022-11-25 18:19:21,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:19:21,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:19:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:19:21,266 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 18:19:21,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:19:21,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854166622] [2022-11-25 18:19:21,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854166622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:19:21,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:19:21,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:19:21,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280891151] [2022-11-25 18:19:21,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:19:21,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:19:21,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:19:21,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:19:21,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:19:21,303 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 159 [2022-11-25 18:19:21,305 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 37 transitions, 77 flow. Second operand has 2 states, 2 states have (on average 58.5) internal successors, (117), 2 states have internal predecessors, (117), 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 18:19:21,305 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:19:21,306 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 159 [2022-11-25 18:19:21,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:19:21,383 INFO L130 PetriNetUnfolder]: 31/92 cut-off events. [2022-11-25 18:19:21,384 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:19:21,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 92 events. 31/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 293 event pairs, 22 based on Foata normal form. 8/85 useless extension candidates. Maximal degree in co-relation 153. Up to 66 conditions per place. [2022-11-25 18:19:21,386 INFO L137 encePairwiseOnDemand]: 143/159 looper letters, 12 selfloop transitions, 0 changer transitions 0/21 dead transitions. [2022-11-25 18:19:21,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 21 transitions, 69 flow [2022-11-25 18:19:21,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:19:21,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 18:19:21,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 142 transitions. [2022-11-25 18:19:21,402 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44654088050314467 [2022-11-25 18:19:21,402 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 142 transitions. [2022-11-25 18:19:21,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 142 transitions. [2022-11-25 18:19:21,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:19:21,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 142 transitions. [2022-11-25 18:19:21,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 71.0) internal successors, (142), 2 states have internal predecessors, (142), 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 18:19:21,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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 18:19:21,424 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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 18:19:21,426 INFO L175 Difference]: Start difference. First operand has 39 places, 37 transitions, 77 flow. Second operand 2 states and 142 transitions. [2022-11-25 18:19:21,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 21 transitions, 69 flow [2022-11-25 18:19:21,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 21 transitions, 68 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:19:21,431 INFO L231 Difference]: Finished difference. Result has 24 places, 21 transitions, 44 flow [2022-11-25 18:19:21,433 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=24, PETRI_TRANSITIONS=21} [2022-11-25 18:19:21,437 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, -15 predicate places. [2022-11-25 18:19:21,437 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 21 transitions, 44 flow [2022-11-25 18:19:21,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 58.5) internal successors, (117), 2 states have internal predecessors, (117), 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 18:19:21,438 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:19:21,438 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-25 18:19:21,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:19:21,440 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-25 18:19:21,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:19:21,441 INFO L85 PathProgramCache]: Analyzing trace with hash 17809220, now seen corresponding path program 1 times [2022-11-25 18:19:21,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:19:21,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511806872] [2022-11-25 18:19:21,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:19:21,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:19:21,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:19:21,567 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 18:19:21,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:19:21,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511806872] [2022-11-25 18:19:21,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511806872] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:19:21,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:19:21,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:19:21,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000414431] [2022-11-25 18:19:21,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:19:21,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:19:21,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:19:21,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:19:21,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:19:21,579 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 159 [2022-11-25 18:19:21,580 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 21 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 18:19:21,580 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:19:21,580 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 159 [2022-11-25 18:19:21,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:19:21,662 INFO L130 PetriNetUnfolder]: 44/126 cut-off events. [2022-11-25 18:19:21,662 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:19:21,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 126 events. 44/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 466 event pairs, 10 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 225. Up to 63 conditions per place. [2022-11-25 18:19:21,665 INFO L137 encePairwiseOnDemand]: 155/159 looper letters, 18 selfloop transitions, 3 changer transitions 3/31 dead transitions. [2022-11-25 18:19:21,665 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 31 transitions, 112 flow [2022-11-25 18:19:21,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:19:21,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:19:21,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 187 transitions. [2022-11-25 18:19:21,673 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3920335429769392 [2022-11-25 18:19:21,673 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 187 transitions. [2022-11-25 18:19:21,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 187 transitions. [2022-11-25 18:19:21,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:19:21,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 187 transitions. [2022-11-25 18:19:21,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 18:19:21,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 18:19:21,684 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 18:19:21,684 INFO L175 Difference]: Start difference. First operand has 24 places, 21 transitions, 44 flow. Second operand 3 states and 187 transitions. [2022-11-25 18:19:21,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 31 transitions, 112 flow [2022-11-25 18:19:21,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 31 transitions, 112 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 18:19:21,685 INFO L231 Difference]: Finished difference. Result has 28 places, 23 transitions, 66 flow [2022-11-25 18:19:21,686 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=28, PETRI_TRANSITIONS=23} [2022-11-25 18:19:21,686 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, -11 predicate places. [2022-11-25 18:19:21,686 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 23 transitions, 66 flow [2022-11-25 18:19:21,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 18:19:21,687 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:19:21,687 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 18:19:21,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:19:21,688 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-25 18:19:21,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:19:21,691 INFO L85 PathProgramCache]: Analyzing trace with hash -65887082, now seen corresponding path program 1 times [2022-11-25 18:19:21,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:19:21,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150282070] [2022-11-25 18:19:21,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:19:21,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:19:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:19:21,795 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 18:19:21,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:19:21,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150282070] [2022-11-25 18:19:21,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150282070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:19:21,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:19:21,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:19:21,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829160910] [2022-11-25 18:19:21,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:19:21,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:19:21,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:19:21,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:19:21,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:19:21,814 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 159 [2022-11-25 18:19:21,815 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 18:19:21,815 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:19:21,815 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 159 [2022-11-25 18:19:21,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:19:21,860 INFO L130 PetriNetUnfolder]: 49/137 cut-off events. [2022-11-25 18:19:21,860 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-11-25 18:19:21,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 137 events. 49/137 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 505 event pairs, 28 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 282. Up to 101 conditions per place. [2022-11-25 18:19:21,862 INFO L137 encePairwiseOnDemand]: 155/159 looper letters, 16 selfloop transitions, 3 changer transitions 3/30 dead transitions. [2022-11-25 18:19:21,862 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 30 transitions, 128 flow [2022-11-25 18:19:21,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:19:21,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:19:21,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 175 transitions. [2022-11-25 18:19:21,864 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3668763102725367 [2022-11-25 18:19:21,864 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 175 transitions. [2022-11-25 18:19:21,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 175 transitions. [2022-11-25 18:19:21,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:19:21,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 175 transitions. [2022-11-25 18:19:21,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 18:19:21,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 18:19:21,867 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 18:19:21,867 INFO L175 Difference]: Start difference. First operand has 28 places, 23 transitions, 66 flow. Second operand 3 states and 175 transitions. [2022-11-25 18:19:21,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 30 transitions, 128 flow [2022-11-25 18:19:21,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 30 transitions, 120 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 18:19:21,869 INFO L231 Difference]: Finished difference. Result has 29 places, 25 transitions, 79 flow [2022-11-25 18:19:21,869 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=79, PETRI_PLACES=29, PETRI_TRANSITIONS=25} [2022-11-25 18:19:21,870 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, -10 predicate places. [2022-11-25 18:19:21,870 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 25 transitions, 79 flow [2022-11-25 18:19:21,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 18:19:21,870 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:19:21,871 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:19:21,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:19:21,871 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-25 18:19:21,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:19:21,872 INFO L85 PathProgramCache]: Analyzing trace with hash -2021060401, now seen corresponding path program 1 times [2022-11-25 18:19:21,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:19:21,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174303019] [2022-11-25 18:19:21,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:19:21,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:19:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:19:21,900 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 18:19:21,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:19:21,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174303019] [2022-11-25 18:19:21,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174303019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:19:21,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:19:21,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:19:21,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069878229] [2022-11-25 18:19:21,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:19:21,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:19:21,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:19:21,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:19:21,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:19:21,911 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 159 [2022-11-25 18:19:21,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 18:19:21,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:19:21,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 159 [2022-11-25 18:19:21,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:19:21,985 INFO L130 PetriNetUnfolder]: 75/190 cut-off events. [2022-11-25 18:19:21,985 INFO L131 PetriNetUnfolder]: For 53/58 co-relation queries the response was YES. [2022-11-25 18:19:21,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 464 conditions, 190 events. 75/190 cut-off events. For 53/58 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 776 event pairs, 7 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 458. Up to 108 conditions per place. [2022-11-25 18:19:21,986 INFO L137 encePairwiseOnDemand]: 154/159 looper letters, 17 selfloop transitions, 4 changer transitions 10/37 dead transitions. [2022-11-25 18:19:21,987 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 37 transitions, 176 flow [2022-11-25 18:19:21,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:19:21,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:19:21,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 186 transitions. [2022-11-25 18:19:21,991 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.389937106918239 [2022-11-25 18:19:21,991 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 186 transitions. [2022-11-25 18:19:21,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 186 transitions. [2022-11-25 18:19:21,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:19:21,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 186 transitions. [2022-11-25 18:19:21,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 18:19:21,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 18:19:22,000 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 18:19:22,000 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 79 flow. Second operand 3 states and 186 transitions. [2022-11-25 18:19:22,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 37 transitions, 176 flow [2022-11-25 18:19:22,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 37 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:19:22,004 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 106 flow [2022-11-25 18:19:22,005 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2022-11-25 18:19:22,006 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, -7 predicate places. [2022-11-25 18:19:22,007 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 106 flow [2022-11-25 18:19:22,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 18:19:22,008 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:19:22,008 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:19:22,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:19:22,008 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-25 18:19:22,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:19:22,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1588207478, now seen corresponding path program 1 times [2022-11-25 18:19:22,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:19:22,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161782796] [2022-11-25 18:19:22,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:19:22,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:19:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:19:22,039 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:19:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:19:22,086 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:19:22,090 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:19:22,091 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 28 remaining) [2022-11-25 18:19:22,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (26 of 28 remaining) [2022-11-25 18:19:22,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (25 of 28 remaining) [2022-11-25 18:19:22,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (24 of 28 remaining) [2022-11-25 18:19:22,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (23 of 28 remaining) [2022-11-25 18:19:22,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 28 remaining) [2022-11-25 18:19:22,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 28 remaining) [2022-11-25 18:19:22,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (20 of 28 remaining) [2022-11-25 18:19:22,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (19 of 28 remaining) [2022-11-25 18:19:22,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (18 of 28 remaining) [2022-11-25 18:19:22,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 28 remaining) [2022-11-25 18:19:22,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 28 remaining) [2022-11-25 18:19:22,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 28 remaining) [2022-11-25 18:19:22,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 28 remaining) [2022-11-25 18:19:22,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 28 remaining) [2022-11-25 18:19:22,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 28 remaining) [2022-11-25 18:19:22,104 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (11 of 28 remaining) [2022-11-25 18:19:22,104 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (10 of 28 remaining) [2022-11-25 18:19:22,106 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 28 remaining) [2022-11-25 18:19:22,107 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 28 remaining) [2022-11-25 18:19:22,108 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 28 remaining) [2022-11-25 18:19:22,108 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 28 remaining) [2022-11-25 18:19:22,108 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 28 remaining) [2022-11-25 18:19:22,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 28 remaining) [2022-11-25 18:19:22,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (3 of 28 remaining) [2022-11-25 18:19:22,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 28 remaining) [2022-11-25 18:19:22,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (1 of 28 remaining) [2022-11-25 18:19:22,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (0 of 28 remaining) [2022-11-25 18:19:22,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:19:22,111 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-25 18:19:22,119 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 18:19:22,119 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:19:22,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:19:22 BasicIcfg [2022-11-25 18:19:22,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:19:22,166 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:19:22,166 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:19:22,166 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:19:22,167 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:19:18" (3/4) ... [2022-11-25 18:19:22,170 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 18:19:22,170 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:19:22,173 INFO L158 Benchmark]: Toolchain (without parser) took 4838.94ms. Allocated memory is still 218.1MB. Free memory was 171.0MB in the beginning and 73.3MB in the end (delta: 97.7MB). Peak memory consumption was 99.6MB. Max. memory is 16.1GB. [2022-11-25 18:19:22,175 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 151.0MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:19:22,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 563.67ms. Allocated memory is still 218.1MB. Free memory was 171.0MB in the beginning and 151.3MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 18:19:22,178 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.40ms. Allocated memory is still 218.1MB. Free memory was 151.3MB in the beginning and 149.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:19:22,179 INFO L158 Benchmark]: Boogie Preprocessor took 46.80ms. Allocated memory is still 218.1MB. Free memory was 149.1MB in the beginning and 147.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:19:22,179 INFO L158 Benchmark]: RCFGBuilder took 720.57ms. Allocated memory is still 218.1MB. Free memory was 147.1MB in the beginning and 117.8MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-25 18:19:22,179 INFO L158 Benchmark]: TraceAbstraction took 3451.28ms. Allocated memory is still 218.1MB. Free memory was 117.8MB in the beginning and 73.3MB in the end (delta: 44.5MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. [2022-11-25 18:19:22,180 INFO L158 Benchmark]: Witness Printer took 4.60ms. Allocated memory is still 218.1MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:19:22,184 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 151.0MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 563.67ms. Allocated memory is still 218.1MB. Free memory was 171.0MB in the beginning and 151.3MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.40ms. Allocated memory is still 218.1MB. Free memory was 151.3MB in the beginning and 149.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.80ms. Allocated memory is still 218.1MB. Free memory was 149.1MB in the beginning and 147.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 720.57ms. Allocated memory is still 218.1MB. Free memory was 147.1MB in the beginning and 117.8MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3451.28ms. Allocated memory is still 218.1MB. Free memory was 117.8MB in the beginning and 73.3MB in the end (delta: 44.5MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. * Witness Printer took 4.60ms. Allocated memory is still 218.1MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 81 PlacesBefore, 39 PlacesAfterwards, 79 TransitionsBefore, 37 TransitionsAfterwards, 1554 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 79 TotalNumberOfCompositions, 5950 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3408, independent: 3178, independent conditional: 0, independent unconditional: 3178, dependent: 230, dependent conditional: 0, dependent unconditional: 230, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1393, independent: 1357, independent conditional: 0, independent unconditional: 1357, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1393, independent: 1202, independent conditional: 0, independent unconditional: 1202, dependent: 191, dependent conditional: 0, dependent unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 191, independent: 155, independent conditional: 0, independent unconditional: 155, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 247, independent: 148, independent conditional: 0, independent unconditional: 148, dependent: 99, dependent conditional: 0, dependent unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3408, independent: 1821, independent conditional: 0, independent unconditional: 1821, dependent: 194, dependent conditional: 0, dependent unconditional: 194, unknown: 1393, unknown conditional: 0, unknown unconditional: 1393] , Statistics on independence cache: Total cache size (in pairs): 262, Positive cache size: 242, Positive conditional cache size: 0, Positive unconditional cache size: 242, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 724]: Data race detected Data race detected The following path leads to a data race: [L688] 0 int mThread=0; [L689] 0 int start_main=0; [L690] 0 int mStartLock=0; [L691] 0 int __COUNT__ =0; [L733] 0 pthread_t t; [L734] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [__COUNT__=0, mStartLock=0, mThread=0, pthread_create(&t, 0, thr1, 0)=-1, start_main=0, t={3:0}] [L735] CALL 0 thr2(0) [L724] 0 int self = mThread; VAL [__COUNT__=0, arg={0:0}, arg={0:0}, mStartLock=0, mThread=0, start_main=0] [L710] 1 int PR_CreateThread__RES = 1; [L711] CALL 1 __VERIFIER_atomic_acquire() [L694] EXPR 1 mStartLock==0 [L694] CALL 1 assume_abort_if_not(mStartLock==0) [L3] COND FALSE 1 !(!cond) [L694] RET 1 assume_abort_if_not(mStartLock==0) [L695] 1 mStartLock = 1 [L711] RET 1 __VERIFIER_atomic_acquire() [L712] 1 start_main=1 VAL [__COUNT__=0, arg={0:0}, arg={0:0}, mStartLock=1, mThread=0, PR_CreateThread__RES=1, start_main=1] [L713] CALL 1 __VERIFIER_atomic_thr1(PR_CreateThread__RES) [L704] 1 __COUNT__ == 0 [L704] COND TRUE 1 __COUNT__ == 0 [L705] 1 mThread = PR_CreateThread__RES [L706] EXPR 1 __COUNT__ + 1 [L706] 1 __COUNT__ = __COUNT__ + 1 [L713] RET 1 __VERIFIER_atomic_thr1(PR_CreateThread__RES) [L724] 0 int self = mThread; VAL [__COUNT__=1, arg={0:0}, arg={0:0}, mStartLock=1, mThread=1, start_main=1] Now there is a data race on ~mThread~0 between C: mThread = PR_CreateThread__RES [705] and C: int self = mThread; [724] - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: 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: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: 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: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: 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: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 734]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 102 locations, 28 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: 3.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 47 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 5 mSDtfsCounter, 116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=4, InterpolantAutomatonStates: 11, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 18:19:22,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec491cf-11ab-4f8f-99e2-1f5a89366f21/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