./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_23-evilcollapse_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_4abb7c08-8fe1-437d-8332-24f10ed04613/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abb7c08-8fe1-437d-8332-24f10ed04613/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abb7c08-8fe1-437d-8332-24f10ed04613/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abb7c08-8fe1-437d-8332-24f10ed04613/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_23-evilcollapse_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abb7c08-8fe1-437d-8332-24f10ed04613/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abb7c08-8fe1-437d-8332-24f10ed04613/bin/utaipan-g80aRyZoba --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash edbdacd2fc511db63719a3e7d2bd257b6310a833f5bcfcddcb6829e714260082 --- 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-b5237d8 [2022-11-22 00:17:26,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:17:26,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:17:26,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:17:26,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:17:26,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:17:26,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:17:26,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:17:26,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:17:26,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:17:26,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:17:26,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:17:26,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:17:26,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:17:26,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:17:26,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:17:26,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:17:26,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:17:26,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:17:26,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:17:26,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:17:26,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:17:26,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:17:26,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:17:26,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:17:26,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:17:26,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:17:26,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:17:26,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:17:26,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:17:26,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:17:26,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:17:26,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:17:26,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:17:26,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:17:26,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:17:26,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:17:26,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:17:26,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:17:26,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:17:26,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:17:26,486 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abb7c08-8fe1-437d-8332-24f10ed04613/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-22 00:17:26,523 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:17:26,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:17:26,523 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:17:26,523 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:17:26,524 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:17:26,524 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:17:26,524 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:17:26,525 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:17:26,525 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:17:26,525 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:17:26,525 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:17:26,526 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:17:26,526 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:17:26,526 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:17:26,526 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:17:26,526 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:17:26,527 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:17:26,532 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:17:26,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:17:26,533 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:17:26,533 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:17:26,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:17:26,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:17:26,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:17:26,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:17:26,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:17:26,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:17:26,535 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-22 00:17:26,536 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:17:26,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:17:26,536 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:17:26,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:17:26,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:17:26,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:17:26,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:17:26,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:17:26,539 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:17:26,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:17:26,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:17:26,539 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:17:26,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:17:26,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:17:26,541 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:17:26,541 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_4abb7c08-8fe1-437d-8332-24f10ed04613/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abb7c08-8fe1-437d-8332-24f10ed04613/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edbdacd2fc511db63719a3e7d2bd257b6310a833f5bcfcddcb6829e714260082 [2022-11-22 00:17:26,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:17:26,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:17:26,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:17:26,910 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:17:26,911 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:17:26,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abb7c08-8fe1-437d-8332-24f10ed04613/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/goblint-regression/09-regions_23-evilcollapse_rc.i [2022-11-22 00:17:29,934 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:17:30,316 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:17:30,318 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abb7c08-8fe1-437d-8332-24f10ed04613/sv-benchmarks/c/goblint-regression/09-regions_23-evilcollapse_rc.i [2022-11-22 00:17:30,348 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abb7c08-8fe1-437d-8332-24f10ed04613/bin/utaipan-g80aRyZoba/data/1ed79fa7f/e1286211fe0e4c1e956b3aa0640acdc2/FLAGfdadd1784 [2022-11-22 00:17:30,369 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abb7c08-8fe1-437d-8332-24f10ed04613/bin/utaipan-g80aRyZoba/data/1ed79fa7f/e1286211fe0e4c1e956b3aa0640acdc2 [2022-11-22 00:17:30,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:17:30,374 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:17:30,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:17:30,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:17:30,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:17:30,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:17:30" (1/1) ... [2022-11-22 00:17:30,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a045047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:30, skipping insertion in model container [2022-11-22 00:17:30,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:17:30" (1/1) ... [2022-11-22 00:17:30,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:17:30,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:17:30,987 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-22 00:17:30,988 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-22 00:17:30,989 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-22 00:17:30,990 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-22 00:17:31,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:17:31,031 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:17:31,068 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-22 00:17:31,069 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-22 00:17:31,070 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-22 00:17:31,071 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-22 00:17:31,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:17:31,148 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:17:31,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:31 WrapperNode [2022-11-22 00:17:31,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:17:31,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:17:31,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:17:31,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:17:31,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:31" (1/1) ... [2022-11-22 00:17:31,177 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:31" (1/1) ... [2022-11-22 00:17:31,215 INFO L138 Inliner]: procedures = 272, calls = 38, calls flagged for inlining = 10, calls inlined = 11, statements flattened = 268 [2022-11-22 00:17:31,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:17:31,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:17:31,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:17:31,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:17:31,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:31" (1/1) ... [2022-11-22 00:17:31,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:31" (1/1) ... [2022-11-22 00:17:31,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:31" (1/1) ... [2022-11-22 00:17:31,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:31" (1/1) ... [2022-11-22 00:17:31,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:31" (1/1) ... [2022-11-22 00:17:31,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:31" (1/1) ... [2022-11-22 00:17:31,273 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:31" (1/1) ... [2022-11-22 00:17:31,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:31" (1/1) ... [2022-11-22 00:17:31,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:17:31,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:17:31,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:17:31,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:17:31,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:31" (1/1) ... [2022-11-22 00:17:31,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:17:31,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abb7c08-8fe1-437d-8332-24f10ed04613/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:17:31,329 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abb7c08-8fe1-437d-8332-24f10ed04613/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:17:31,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abb7c08-8fe1-437d-8332-24f10ed04613/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:17:31,378 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-22 00:17:31,378 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-22 00:17:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:17:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 00:17:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:17:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:17:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:17:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 00:17:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 00:17:31,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:17:31,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 00:17:31,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:17:31,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:17:31,381 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 00:17:31,535 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:17:31,537 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:17:32,194 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:17:32,205 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:17:32,206 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-22 00:17:32,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:17:32 BoogieIcfgContainer [2022-11-22 00:17:32,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:17:32,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:17:32,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:17:32,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:17:32,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:17:30" (1/3) ... [2022-11-22 00:17:32,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d60d1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:17:32, skipping insertion in model container [2022-11-22 00:17:32,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:31" (2/3) ... [2022-11-22 00:17:32,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d60d1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:17:32, skipping insertion in model container [2022-11-22 00:17:32,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:17:32" (3/3) ... [2022-11-22 00:17:32,218 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_23-evilcollapse_rc.i [2022-11-22 00:17:32,227 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 00:17:32,238 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:17:32,238 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-22 00:17:32,238 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 00:17:32,373 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 00:17:32,439 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 00:17:32,494 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 377 places, 386 transitions, 782 flow [2022-11-22 00:17:32,502 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 377 places, 386 transitions, 782 flow [2022-11-22 00:17:32,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 377 places, 386 transitions, 782 flow [2022-11-22 00:17:32,726 INFO L130 PetriNetUnfolder]: 16/384 cut-off events. [2022-11-22 00:17:32,726 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-22 00:17:32,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 391 conditions, 384 events. 16/384 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 680 event pairs, 0 based on Foata normal form. 0/346 useless extension candidates. Maximal degree in co-relation 307. Up to 2 conditions per place. [2022-11-22 00:17:32,748 INFO L119 LiptonReduction]: Number of co-enabled transitions 12784 [2022-11-22 00:18:43,250 WARN L233 SmtUtils]: Spent 18.52s on a formula simplification. DAG size of input: 150 DAG size of output: 144 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:18:50,807 WARN L233 SmtUtils]: Spent 7.56s on a formula simplification that was a NOOP. DAG size: 136 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:19:10,643 WARN L233 SmtUtils]: Spent 19.83s on a formula simplification. DAG size of input: 150 DAG size of output: 144 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:19:20,214 WARN L233 SmtUtils]: Spent 9.57s on a formula simplification that was a NOOP. DAG size: 136 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:20:22,979 WARN L233 SmtUtils]: Spent 36.39s on a formula simplification that was a NOOP. DAG size: 191 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:20:50,862 WARN L233 SmtUtils]: Spent 27.88s on a formula simplification that was a NOOP. DAG size: 187 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:21:33,814 WARN L233 SmtUtils]: Spent 42.95s on a formula simplification that was a NOOP. DAG size: 191 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:22:07,442 WARN L233 SmtUtils]: Spent 33.63s on a formula simplification that was a NOOP. DAG size: 187 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:27:48,883 WARN L233 SmtUtils]: Spent 5.65m on a formula simplification. DAG size of input: 266 DAG size of output: 264 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:30:16,228 WARN L233 SmtUtils]: Spent 2.46m on a formula simplification that was a NOOP. DAG size: 252 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)