./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5a89ac-2e01-4ad3-b860-29f6a6d625aa/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5a89ac-2e01-4ad3-b860-29f6a6d625aa/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5a89ac-2e01-4ad3-b860-29f6a6d625aa/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5a89ac-2e01-4ad3-b860-29f6a6d625aa/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5a89ac-2e01-4ad3-b860-29f6a6d625aa/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5a89ac-2e01-4ad3-b860-29f6a6d625aa/bin/utaipan-gh47qXpMRh --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 085e9170c725dbfce47ad23ff96af1e2e4188372955794675158fde45968fe8a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 08:50:53,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:50:53,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:50:53,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:50:53,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:50:53,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:50:53,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:50:53,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:50:53,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:50:53,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:50:53,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:50:53,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:50:53,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:50:53,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:50:53,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:50:53,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:50:53,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:50:53,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:50:53,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:50:53,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:50:53,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:50:53,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:50:53,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:50:53,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:50:53,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:50:53,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:50:53,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:50:53,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:50:53,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:50:53,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:50:53,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:50:53,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:50:53,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:50:53,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:50:53,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:50:53,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:50:53,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:50:53,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:50:53,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:50:53,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:50:53,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:50:53,729 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5a89ac-2e01-4ad3-b860-29f6a6d625aa/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 08:50:53,748 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:50:53,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:50:53,749 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:50:53,749 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:50:53,750 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:50:53,750 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:50:53,750 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:50:53,750 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:50:53,750 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:50:53,750 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:50:53,751 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:50:53,751 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:50:53,751 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:50:53,751 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:50:53,751 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:50:53,751 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:50:53,752 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:50:53,752 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:50:53,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:50:53,752 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:50:53,753 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:50:53,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:50:53,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:50:53,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:50:53,753 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:50:53,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:50:53,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:50:53,753 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 08:50:53,753 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:50:53,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:50:53,753 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:50:53,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:50:53,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:50:53,754 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:50:53,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:50:53,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:50:53,754 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:50:53,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:50:53,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:50:53,754 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:50:53,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:50:53,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:50:53,755 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:50:53,755 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_9f5a89ac-2e01-4ad3-b860-29f6a6d625aa/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5a89ac-2e01-4ad3-b860-29f6a6d625aa/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 085e9170c725dbfce47ad23ff96af1e2e4188372955794675158fde45968fe8a [2022-12-14 08:50:53,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:50:53,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:50:53,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:50:53,934 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:50:53,934 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:50:53,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5a89ac-2e01-4ad3-b860-29f6a6d625aa/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i [2022-12-14 08:50:56,548 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:50:56,798 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:50:56,799 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5a89ac-2e01-4ad3-b860-29f6a6d625aa/sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i [2022-12-14 08:50:56,811 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5a89ac-2e01-4ad3-b860-29f6a6d625aa/bin/utaipan-gh47qXpMRh/data/2eac44df0/089d84bdbe6e43eab0355dee2573250b/FLAG25d21f1da [2022-12-14 08:50:56,827 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5a89ac-2e01-4ad3-b860-29f6a6d625aa/bin/utaipan-gh47qXpMRh/data/2eac44df0/089d84bdbe6e43eab0355dee2573250b [2022-12-14 08:50:56,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:50:56,831 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:50:56,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:50:56,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:50:56,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:50:56,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:50:56" (1/1) ... [2022-12-14 08:50:56,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f84fe48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:56, skipping insertion in model container [2022-12-14 08:50:56,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:50:56" (1/1) ... [2022-12-14 08:50:56,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:50:56,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:50:57,231 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 08:50:57,232 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 08:50:57,233 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 08:50:57,233 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 08:50:57,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:50:57,272 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:50:57,308 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 08:50:57,309 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 08:50:57,310 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 08:50:57,311 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 08:50:57,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:50:57,379 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:50:57,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:57 WrapperNode [2022-12-14 08:50:57,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:50:57,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:50:57,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:50:57,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:50:57,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:57" (1/1) ... [2022-12-14 08:50:57,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:57" (1/1) ... [2022-12-14 08:50:57,447 INFO L138 Inliner]: procedures = 273, calls = 38, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 256 [2022-12-14 08:50:57,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:50:57,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:50:57,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:50:57,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:50:57,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:57" (1/1) ... [2022-12-14 08:50:57,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:57" (1/1) ... [2022-12-14 08:50:57,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:57" (1/1) ... [2022-12-14 08:50:57,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:57" (1/1) ... [2022-12-14 08:50:57,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:57" (1/1) ... [2022-12-14 08:50:57,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:57" (1/1) ... [2022-12-14 08:50:57,488 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:57" (1/1) ... [2022-12-14 08:50:57,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:57" (1/1) ... [2022-12-14 08:50:57,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:50:57,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:50:57,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:50:57,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:50:57,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:57" (1/1) ... [2022-12-14 08:50:57,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:50:57,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5a89ac-2e01-4ad3-b860-29f6a6d625aa/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:50:57,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5a89ac-2e01-4ad3-b860-29f6a6d625aa/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:50:57,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5a89ac-2e01-4ad3-b860-29f6a6d625aa/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:50:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-12-14 08:50:57,555 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-12-14 08:50:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:50:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 08:50:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:50:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 08:50:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:50:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 08:50:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 08:50:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:50:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 08:50:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:50:57,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:50:57,557 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 08:50:57,669 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:50:57,670 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:50:58,059 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:50:58,067 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:50:58,068 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 08:50:58,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:50:58 BoogieIcfgContainer [2022-12-14 08:50:58,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:50:58,072 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:50:58,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:50:58,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:50:58,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:50:56" (1/3) ... [2022-12-14 08:50:58,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c038970 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:50:58, skipping insertion in model container [2022-12-14 08:50:58,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:50:57" (2/3) ... [2022-12-14 08:50:58,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c038970 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:50:58, skipping insertion in model container [2022-12-14 08:50:58,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:50:58" (3/3) ... [2022-12-14 08:50:58,077 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_24-evilcollapse_nr.i [2022-12-14 08:50:58,083 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 08:50:58,091 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:50:58,091 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-12-14 08:50:58,091 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 08:50:58,185 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 08:50:58,213 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 08:50:58,225 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 363 places, 373 transitions, 756 flow [2022-12-14 08:50:58,227 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 363 places, 373 transitions, 756 flow [2022-12-14 08:50:58,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 363 places, 373 transitions, 756 flow [2022-12-14 08:50:58,337 INFO L130 PetriNetUnfolder]: 17/371 cut-off events. [2022-12-14 08:50:58,337 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 08:50:58,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 371 events. 17/371 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 786 event pairs, 0 based on Foata normal form. 0/334 useless extension candidates. Maximal degree in co-relation 294. Up to 2 conditions per place. [2022-12-14 08:50:58,349 INFO L119 LiptonReduction]: Number of co-enabled transitions 12784 [2022-12-14 08:51:40,213 WARN L233 SmtUtils]: Spent 9.32s on a formula simplification. DAG size of input: 138 DAG size of output: 130 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:51:51,508 WARN L233 SmtUtils]: Spent 8.89s on a formula simplification. DAG size of input: 138 DAG size of output: 130 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:52:09,788 WARN L233 SmtUtils]: Spent 11.68s on a formula simplification that was a NOOP. DAG size: 135 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:52:18,926 WARN L233 SmtUtils]: Spent 9.14s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:52:30,065 WARN L233 SmtUtils]: Spent 11.14s on a formula simplification that was a NOOP. DAG size: 135 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:52:39,585 WARN L233 SmtUtils]: Spent 9.52s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:55:06,943 WARN L233 SmtUtils]: Spent 2.44m on a formula simplification. DAG size of input: 225 DAG size of output: 216 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:56:07,890 WARN L233 SmtUtils]: Spent 1.02m on a formula simplification that was a NOOP. DAG size: 202 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:58:44,852 WARN L233 SmtUtils]: Spent 2.62m on a formula simplification. DAG size of input: 225 DAG size of output: 216 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:59:49,464 WARN L233 SmtUtils]: Spent 1.08m on a formula simplification that was a NOOP. DAG size: 202 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 09:02:03,139 WARN L233 SmtUtils]: Spent 2.22m on a formula simplification that was a NOOP. DAG size: 256 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 09:03:52,480 WARN L233 SmtUtils]: Spent 1.82m 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)