./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_09-arraylist.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b 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_b1b57d00-49f0-47ef-bb13-6ed151df9f3a/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b57d00-49f0-47ef-bb13-6ed151df9f3a/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b57d00-49f0-47ef-bb13-6ed151df9f3a/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b57d00-49f0-47ef-bb13-6ed151df9f3a/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_09-arraylist.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b57d00-49f0-47ef-bb13-6ed151df9f3a/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b57d00-49f0-47ef-bb13-6ed151df9f3a/bin/utaipan-I9t0OCRTmS --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 531fb1e21d8f5a9631a3764359a014fcdd0042558e9afceaf1b553fa03cda562 --- 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-8393723 [2022-11-19 08:16:55,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:16:55,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:16:55,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:16:55,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:16:55,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:16:55,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:16:55,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:16:55,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:16:55,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:16:55,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:16:55,615 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:16:55,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:16:55,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:16:55,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:16:55,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:16:55,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:16:55,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:16:55,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:16:55,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:16:55,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:16:55,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:16:55,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:16:55,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:16:55,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:16:55,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:16:55,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:16:55,646 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:16:55,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:16:55,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:16:55,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:16:55,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:16:55,649 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:16:55,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:16:55,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:16:55,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:16:55,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:16:55,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:16:55,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:16:55,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:16:55,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:16:55,655 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b57d00-49f0-47ef-bb13-6ed151df9f3a/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-19 08:16:55,680 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:16:55,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:16:55,681 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:16:55,681 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:16:55,682 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:16:55,682 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:16:55,682 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:16:55,683 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:16:55,683 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:16:55,683 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:16:55,683 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:16:55,683 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:16:55,683 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:16:55,684 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:16:55,684 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:16:55,684 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:16:55,684 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:16:55,684 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:16:55,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:16:55,685 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:16:55,685 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:16:55,686 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:16:55,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:16:55,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:16:55,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:16:55,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:16:55,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:16:55,687 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-19 08:16:55,687 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:16:55,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:16:55,687 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:16:55,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:16:55,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:16:55,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:16:55,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:16:55,688 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:16:55,689 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:16:55,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:16:55,689 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:16:55,689 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:16:55,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:16:55,689 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:16:55,690 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:16:55,690 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_b1b57d00-49f0-47ef-bb13-6ed151df9f3a/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b57d00-49f0-47ef-bb13-6ed151df9f3a/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 531fb1e21d8f5a9631a3764359a014fcdd0042558e9afceaf1b553fa03cda562 [2022-11-19 08:16:55,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:16:55,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:16:55,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:16:55,990 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:16:55,991 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:16:55,993 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b57d00-49f0-47ef-bb13-6ed151df9f3a/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/goblint-regression/09-regions_09-arraylist.i [2022-11-19 08:16:56,065 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b57d00-49f0-47ef-bb13-6ed151df9f3a/bin/utaipan-I9t0OCRTmS/data/d3b98eb6b/999e8ab2a4a64c53a4f72977eb8a0943/FLAGa9943299f [2022-11-19 08:16:56,624 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:16:56,625 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b57d00-49f0-47ef-bb13-6ed151df9f3a/sv-benchmarks/c/goblint-regression/09-regions_09-arraylist.i [2022-11-19 08:16:56,643 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b57d00-49f0-47ef-bb13-6ed151df9f3a/bin/utaipan-I9t0OCRTmS/data/d3b98eb6b/999e8ab2a4a64c53a4f72977eb8a0943/FLAGa9943299f [2022-11-19 08:16:56,898 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b57d00-49f0-47ef-bb13-6ed151df9f3a/bin/utaipan-I9t0OCRTmS/data/d3b98eb6b/999e8ab2a4a64c53a4f72977eb8a0943 [2022-11-19 08:16:56,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:16:56,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:16:56,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:16:56,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:16:56,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:16:56,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:16:56" (1/1) ... [2022-11-19 08:16:56,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f6877e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:56, skipping insertion in model container [2022-11-19 08:16:56,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:16:56" (1/1) ... [2022-11-19 08:16:56,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:16:56,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:16:57,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:16:57,763 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:16:57,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:16:57,925 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:16:57,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:57 WrapperNode [2022-11-19 08:16:57,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:16:57,926 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:16:57,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:16:57,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:16:57,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:57" (1/1) ... [2022-11-19 08:16:57,969 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:57" (1/1) ... [2022-11-19 08:16:58,015 INFO L138 Inliner]: procedures = 371, calls = 35, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 223 [2022-11-19 08:16:58,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:16:58,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:16:58,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:16:58,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:16:58,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:57" (1/1) ... [2022-11-19 08:16:58,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:57" (1/1) ... [2022-11-19 08:16:58,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:57" (1/1) ... [2022-11-19 08:16:58,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:57" (1/1) ... [2022-11-19 08:16:58,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:57" (1/1) ... [2022-11-19 08:16:58,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:57" (1/1) ... [2022-11-19 08:16:58,069 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:57" (1/1) ... [2022-11-19 08:16:58,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:57" (1/1) ... [2022-11-19 08:16:58,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:16:58,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:16:58,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:16:58,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:16:58,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:57" (1/1) ... [2022-11-19 08:16:58,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:16:58,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b57d00-49f0-47ef-bb13-6ed151df9f3a/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:16:58,134 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b57d00-49f0-47ef-bb13-6ed151df9f3a/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:16:58,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b57d00-49f0-47ef-bb13-6ed151df9f3a/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:16:58,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:16:58,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:16:58,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:16:58,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:16:58,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:16:58,192 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-19 08:16:58,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:16:58,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:16:58,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:16:58,193 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-19 08:16:58,193 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-19 08:16:58,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:16:58,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:16:58,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:16:58,195 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 08:16:58,464 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:16:58,466 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:16:59,090 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:16:59,100 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:16:59,100 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 08:16:59,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:16:59 BoogieIcfgContainer [2022-11-19 08:16:59,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:16:59,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:16:59,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:16:59,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:16:59,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:16:56" (1/3) ... [2022-11-19 08:16:59,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@806d2c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:16:59, skipping insertion in model container [2022-11-19 08:16:59,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:57" (2/3) ... [2022-11-19 08:16:59,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@806d2c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:16:59, skipping insertion in model container [2022-11-19 08:16:59,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:16:59" (3/3) ... [2022-11-19 08:16:59,112 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_09-arraylist.i [2022-11-19 08:16:59,120 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 08:16:59,131 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:16:59,131 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-19 08:16:59,131 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 08:16:59,246 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 08:16:59,285 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 08:16:59,301 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 273 places, 271 transitions, 547 flow [2022-11-19 08:16:59,304 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 273 places, 271 transitions, 547 flow [2022-11-19 08:16:59,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 273 places, 271 transitions, 547 flow [2022-11-19 08:16:59,491 INFO L130 PetriNetUnfolder]: 2/270 cut-off events. [2022-11-19 08:16:59,492 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 08:16:59,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 270 events. 2/270 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 101 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 144. Up to 2 conditions per place. [2022-11-19 08:16:59,517 INFO L119 LiptonReduction]: Number of co-enabled transitions 6512 [2022-11-19 08:17:33,324 WARN L233 SmtUtils]: Spent 7.88s on a formula simplification that was a NOOP. DAG size: 142 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:17:40,732 WARN L233 SmtUtils]: Spent 7.41s 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) [2022-11-19 08:17:50,592 WARN L233 SmtUtils]: Spent 6.40s 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) [2022-11-19 08:18:39,300 WARN L233 SmtUtils]: Spent 47.69s on a formula simplification. DAG size of input: 200 DAG size of output: 196 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:19:05,461 WARN L233 SmtUtils]: Spent 26.16s on a formula simplification that was a NOOP. DAG size: 188 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:19:46,288 WARN L233 SmtUtils]: Spent 40.82s on a formula simplification. DAG size of input: 200 DAG size of output: 196 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:20:04,855 WARN L233 SmtUtils]: Spent 18.56s on a formula simplification that was a NOOP. DAG size: 188 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:21:27,837 WARN L233 SmtUtils]: Spent 1.38m on a formula simplification that was a NOOP. DAG size: 255 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:22:11,438 WARN L233 SmtUtils]: Spent 43.59s on a formula simplification that was a NOOP. DAG size: 232 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:23:35,058 WARN L233 SmtUtils]: Spent 1.39m on a formula simplification that was a NOOP. DAG size: 255 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:23:59,501 WARN L233 SmtUtils]: Spent 24.44s on a formula simplification that was a NOOP. DAG size: 232 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:25:13,713 WARN L233 SmtUtils]: Spent 1.24m on a formula simplification that was a NOOP. DAG size: 302 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:26:31,240 WARN L233 SmtUtils]: Spent 1.29m on a formula simplification that was a NOOP. DAG size: 294 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:27:50,945 WARN L233 SmtUtils]: Spent 1.33m on a formula simplification that was a NOOP. DAG size: 305 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:29:02,949 WARN L233 SmtUtils]: Spent 1.20m on a formula simplification that was a NOOP. DAG size: 297 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:30:14,196 WARN L233 SmtUtils]: Spent 1.19m on a formula simplification that was a NOOP. DAG size: 345 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:31:23,012 WARN L233 SmtUtils]: Spent 1.15m on a formula simplification that was a NOOP. DAG size: 331 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)