./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a 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_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:41:21,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:41:21,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:41:21,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:41:21,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:41:21,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:41:21,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:41:21,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:41:21,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:41:21,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:41:21,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:41:21,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:41:21,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:41:21,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:41:21,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:41:21,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:41:21,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:41:21,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:41:21,271 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:41:21,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:41:21,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:41:21,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:41:21,277 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:41:21,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:41:21,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:41:21,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:41:21,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:41:21,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:41:21,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:41:21,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:41:21,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:41:21,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:41:21,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:41:21,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:41:21,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:41:21,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:41:21,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:41:21,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:41:21,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:41:21,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:41:21,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:41:21,294 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-25 22:41:21,317 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:41:21,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:41:21,318 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:41:21,318 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:41:21,319 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:41:21,319 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:41:21,320 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:41:21,320 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:41:21,320 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:41:21,321 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:41:21,321 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:41:21,321 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:41:21,321 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:41:21,322 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:41:21,322 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:41:21,322 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:41:21,323 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:41:21,323 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:41:21,324 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 22:41:21,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 22:41:21,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:41:21,324 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:41:21,325 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:41:21,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:41:21,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:41:21,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:41:21,326 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 22:41:21,326 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 22:41:21,326 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 22:41:21,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:41:21,327 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 22:41:21,327 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:41:21,327 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:41:21,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:41:21,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:41:21,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:41:21,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:41:21,329 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:41:21,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:41:21,329 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:41:21,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:41:21,330 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:41:21,330 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_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c [2022-11-25 22:41:21,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:41:21,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:41:21,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:41:21,661 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:41:21,662 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:41:21,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-11-25 22:41:24,810 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:41:25,075 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:41:25,076 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-11-25 22:41:25,090 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/data/949e23a96/abf4c342dde947d4a888532974a5d1ff/FLAG6401712b2 [2022-11-25 22:41:25,104 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/data/949e23a96/abf4c342dde947d4a888532974a5d1ff [2022-11-25 22:41:25,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:41:25,108 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:41:25,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:41:25,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:41:25,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:41:25,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:41:25" (1/1) ... [2022-11-25 22:41:25,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@945e1b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:25, skipping insertion in model container [2022-11-25 22:41:25,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:41:25" (1/1) ... [2022-11-25 22:41:25,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:41:25,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:41:25,312 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2022-11-25 22:41:25,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:41:25,531 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:41:25,549 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2022-11-25 22:41:25,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:41:25,627 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:41:25,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:25 WrapperNode [2022-11-25 22:41:25,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:41:25,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:41:25,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:41:25,629 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:41:25,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:25" (1/1) ... [2022-11-25 22:41:25,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:25" (1/1) ... [2022-11-25 22:41:25,681 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-11-25 22:41:25,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:41:25,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:41:25,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:41:25,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:41:25,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:25" (1/1) ... [2022-11-25 22:41:25,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:25" (1/1) ... [2022-11-25 22:41:25,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:25" (1/1) ... [2022-11-25 22:41:25,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:25" (1/1) ... [2022-11-25 22:41:25,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:25" (1/1) ... [2022-11-25 22:41:25,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:25" (1/1) ... [2022-11-25 22:41:25,705 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:25" (1/1) ... [2022-11-25 22:41:25,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:25" (1/1) ... [2022-11-25 22:41:25,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:41:25,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:41:25,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:41:25,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:41:25,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:25" (1/1) ... [2022-11-25 22:41:25,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:41:25,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:41:25,744 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:41:25,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:41:25,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:41:25,794 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 22:41:25,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:41:25,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:41:25,794 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 22:41:25,794 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 22:41:25,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:41:25,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:41:25,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:41:25,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:41:25,797 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 22:41:26,034 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:41:26,036 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:41:26,303 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:41:26,311 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:41:26,311 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 22:41:26,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:41:26 BoogieIcfgContainer [2022-11-25 22:41:26,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:41:26,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:41:26,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:41:26,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:41:26,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:41:25" (1/3) ... [2022-11-25 22:41:26,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@425dcec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:41:26, skipping insertion in model container [2022-11-25 22:41:26,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:25" (2/3) ... [2022-11-25 22:41:26,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@425dcec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:41:26, skipping insertion in model container [2022-11-25 22:41:26,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:41:26" (3/3) ... [2022-11-25 22:41:26,329 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-11-25 22:41:26,351 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:41:26,353 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 22:41:26,353 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 22:41:26,432 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 22:41:26,480 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 22:41:26,510 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 72 transitions, 149 flow [2022-11-25 22:41:26,517 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 72 transitions, 149 flow [2022-11-25 22:41:26,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 72 transitions, 149 flow [2022-11-25 22:41:26,581 INFO L130 PetriNetUnfolder]: 1/71 cut-off events. [2022-11-25 22:41:26,582 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 22:41:26,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 1/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2022-11-25 22:41:26,590 INFO L119 LiptonReduction]: Number of co-enabled transitions 520 [2022-11-25 22:41:29,891 INFO L134 LiptonReduction]: Checked pairs total: 1281 [2022-11-25 22:41:29,891 INFO L136 LiptonReduction]: Total number of compositions: 72 [2022-11-25 22:41:29,900 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 18 transitions, 41 flow [2022-11-25 22:41:29,919 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 46 states, 42 states have (on average 1.9285714285714286) internal successors, (81), 45 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:41:29,946 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:41:29,952 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@63799c1b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:41:29,952 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-25 22:41:29,955 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 42 states have (on average 1.9285714285714286) internal successors, (81), 45 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:41:29,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-25 22:41:29,961 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:29,963 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-25 22:41:29,963 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-25 22:41:29,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:29,971 INFO L85 PathProgramCache]: Analyzing trace with hash 260, now seen corresponding path program 1 times [2022-11-25 22:41:29,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:29,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453506719] [2022-11-25 22:41:29,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:29,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:30,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:41:30,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:41:30,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453506719] [2022-11-25 22:41:30,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453506719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:30,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:30,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 22:41:30,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294958946] [2022-11-25 22:41:30,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:30,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:41:30,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:41:30,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:41:30,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:41:30,107 INFO L87 Difference]: Start difference. First operand has 46 states, 42 states have (on average 1.9285714285714286) internal successors, (81), 45 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:41:30,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:30,148 INFO L93 Difference]: Finished difference Result 44 states and 73 transitions. [2022-11-25 22:41:30,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:41:30,150 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-25 22:41:30,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:30,158 INFO L225 Difference]: With dead ends: 44 [2022-11-25 22:41:30,159 INFO L226 Difference]: Without dead ends: 44 [2022-11-25 22:41:30,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:41:30,164 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:30,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:41:30,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-25 22:41:30,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-25 22:41:30,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 42 states have (on average 1.7380952380952381) internal successors, (73), 43 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:41:30,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 73 transitions. [2022-11-25 22:41:30,199 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 73 transitions. Word has length 1 [2022-11-25 22:41:30,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:30,200 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 73 transitions. [2022-11-25 22:41:30,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:41:30,200 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 73 transitions. [2022-11-25 22:41:30,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 22:41:30,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:30,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 22:41:30,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:41:30,202 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-25 22:41:30,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:30,203 INFO L85 PathProgramCache]: Analyzing trace with hash 246003604, now seen corresponding path program 1 times [2022-11-25 22:41:30,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:30,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589912058] [2022-11-25 22:41:30,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:30,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:30,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:41:30,285 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:41:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:41:30,362 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:41:30,363 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:41:30,366 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2022-11-25 22:41:30,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2022-11-25 22:41:30,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2022-11-25 22:41:30,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2022-11-25 22:41:30,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-11-25 22:41:30,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:41:30,375 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 22:41:30,380 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 22:41:30,381 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:41:30,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:41:30 BasicIcfg [2022-11-25 22:41:30,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:41:30,418 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:41:30,418 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:41:30,419 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:41:30,419 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:41:26" (3/4) ... [2022-11-25 22:41:30,422 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 22:41:30,422 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:41:30,429 INFO L158 Benchmark]: Toolchain (without parser) took 5315.59ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 90.1MB in the beginning and 58.4MB in the end (delta: 31.7MB). Peak memory consumption was 70.5MB. Max. memory is 16.1GB. [2022-11-25 22:41:30,429 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 134.2MB. Free memory is still 109.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:41:30,430 INFO L158 Benchmark]: CACSL2BoogieTranslator took 519.36ms. Allocated memory is still 134.2MB. Free memory was 89.7MB in the beginning and 70.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 22:41:30,431 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.42ms. Allocated memory is still 134.2MB. Free memory was 70.8MB in the beginning and 68.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:41:30,431 INFO L158 Benchmark]: Boogie Preprocessor took 25.67ms. Allocated memory is still 134.2MB. Free memory was 68.7MB in the beginning and 67.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:41:30,434 INFO L158 Benchmark]: RCFGBuilder took 605.89ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 67.2MB in the beginning and 135.9MB in the end (delta: -68.7MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2022-11-25 22:41:30,438 INFO L158 Benchmark]: TraceAbstraction took 4097.42ms. Allocated memory is still 169.9MB. Free memory was 135.0MB in the beginning and 59.5MB in the end (delta: 75.5MB). Peak memory consumption was 76.4MB. Max. memory is 16.1GB. [2022-11-25 22:41:30,439 INFO L158 Benchmark]: Witness Printer took 4.59ms. Allocated memory is still 169.9MB. Free memory was 59.5MB in the beginning and 58.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:41:30,441 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 134.2MB. Free memory is still 109.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 519.36ms. Allocated memory is still 134.2MB. Free memory was 89.7MB in the beginning and 70.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.42ms. Allocated memory is still 134.2MB. Free memory was 70.8MB in the beginning and 68.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.67ms. Allocated memory is still 134.2MB. Free memory was 68.7MB in the beginning and 67.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 605.89ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 67.2MB in the beginning and 135.9MB in the end (delta: -68.7MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4097.42ms. Allocated memory is still 169.9MB. Free memory was 135.0MB in the beginning and 59.5MB in the end (delta: 75.5MB). Peak memory consumption was 76.4MB. Max. memory is 16.1GB. * Witness Printer took 4.59ms. Allocated memory is still 169.9MB. Free memory was 59.5MB in the beginning and 58.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 75 PlacesBefore, 21 PlacesAfterwards, 72 TransitionsBefore, 18 TransitionsAfterwards, 520 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 72 TotalNumberOfCompositions, 1281 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 640, independent: 531, independent conditional: 0, independent unconditional: 531, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 371, independent: 348, independent conditional: 0, independent unconditional: 348, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 371, independent: 329, independent conditional: 0, independent unconditional: 329, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 42, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 111, independent: 44, independent conditional: 0, independent unconditional: 44, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 640, independent: 183, independent conditional: 0, independent unconditional: 183, dependent: 86, dependent conditional: 0, dependent unconditional: 86, unknown: 371, unknown conditional: 0, unknown unconditional: 371] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, D={4:0}, g=0, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L698] CALL 0 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, cond=0, D={4:0}, g=0] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 84 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 2 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 22:41:30,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:41:32,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:41:32,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:41:32,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:41:32,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:41:32,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:41:32,958 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:41:32,962 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:41:32,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:41:32,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:41:32,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:41:32,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:41:32,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:41:32,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:41:32,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:41:32,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:41:32,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:41:32,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:41:32,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:41:32,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:41:32,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:41:33,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:41:33,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:41:33,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:41:33,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:41:33,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:41:33,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:41:33,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:41:33,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:41:33,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:41:33,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:41:33,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:41:33,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:41:33,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:41:33,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:41:33,045 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:41:33,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:41:33,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:41:33,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:41:33,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:41:33,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:41:33,051 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-25 22:41:33,089 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:41:33,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:41:33,090 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:41:33,090 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:41:33,091 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:41:33,092 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:41:33,092 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:41:33,092 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:41:33,092 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:41:33,093 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:41:33,094 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:41:33,094 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:41:33,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 22:41:33,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 22:41:33,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:41:33,096 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:41:33,096 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:41:33,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:41:33,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:41:33,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:41:33,097 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 22:41:33,098 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 22:41:33,098 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 22:41:33,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:41:33,098 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 22:41:33,099 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 22:41:33,099 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 22:41:33,099 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:41:33,100 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:41:33,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:41:33,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 22:41:33,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:41:33,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:41:33,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:41:33,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:41:33,102 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 22:41:33,102 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 22:41:33,102 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:41:33,102 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 22:41:33,103 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c [2022-11-25 22:41:33,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:41:33,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:41:33,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:41:33,481 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:41:33,482 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:41:33,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-11-25 22:41:36,645 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:41:36,968 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:41:36,968 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-11-25 22:41:37,010 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/data/27d85124b/96edfe01325e48078d93e1071c317f20/FLAGd7e97be3b [2022-11-25 22:41:37,029 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/data/27d85124b/96edfe01325e48078d93e1071c317f20 [2022-11-25 22:41:37,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:41:37,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:41:37,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:41:37,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:41:37,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:41:37,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:41:37" (1/1) ... [2022-11-25 22:41:37,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55697bae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:37, skipping insertion in model container [2022-11-25 22:41:37,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:41:37" (1/1) ... [2022-11-25 22:41:37,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:41:37,099 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:41:37,298 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2022-11-25 22:41:37,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:41:37,551 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:41:37,570 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2022-11-25 22:41:37,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:41:37,662 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:41:37,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:37 WrapperNode [2022-11-25 22:41:37,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:41:37,665 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:41:37,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:41:37,665 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:41:37,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:37" (1/1) ... [2022-11-25 22:41:37,702 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:37" (1/1) ... [2022-11-25 22:41:37,731 INFO L138 Inliner]: procedures = 166, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-11-25 22:41:37,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:41:37,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:41:37,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:41:37,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:41:37,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:37" (1/1) ... [2022-11-25 22:41:37,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:37" (1/1) ... [2022-11-25 22:41:37,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:37" (1/1) ... [2022-11-25 22:41:37,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:37" (1/1) ... [2022-11-25 22:41:37,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:37" (1/1) ... [2022-11-25 22:41:37,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:37" (1/1) ... [2022-11-25 22:41:37,775 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:37" (1/1) ... [2022-11-25 22:41:37,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:37" (1/1) ... [2022-11-25 22:41:37,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:41:37,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:41:37,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:41:37,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:41:37,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:37" (1/1) ... [2022-11-25 22:41:37,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:41:37,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:41:37,828 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:41:37,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:41:37,891 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 22:41:37,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:41:37,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:41:37,892 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 22:41:37,892 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 22:41:37,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:41:37,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-25 22:41:37,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 22:41:37,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-25 22:41:37,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:41:37,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:41:37,894 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 22:41:38,075 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:41:38,077 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:41:38,305 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:41:38,312 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:41:38,312 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 22:41:38,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:41:38 BoogieIcfgContainer [2022-11-25 22:41:38,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:41:38,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:41:38,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:41:38,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:41:38,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:41:37" (1/3) ... [2022-11-25 22:41:38,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1467451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:41:38, skipping insertion in model container [2022-11-25 22:41:38,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:37" (2/3) ... [2022-11-25 22:41:38,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1467451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:41:38, skipping insertion in model container [2022-11-25 22:41:38,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:41:38" (3/3) ... [2022-11-25 22:41:38,333 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-11-25 22:41:38,355 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:41:38,355 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 22:41:38,356 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 22:41:38,428 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 22:41:38,460 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 22:41:38,475 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 73 transitions, 151 flow [2022-11-25 22:41:38,478 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 73 transitions, 151 flow [2022-11-25 22:41:38,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 73 transitions, 151 flow [2022-11-25 22:41:38,520 INFO L130 PetriNetUnfolder]: 1/72 cut-off events. [2022-11-25 22:41:38,520 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 22:41:38,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 72 events. 1/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2022-11-25 22:41:38,526 INFO L119 LiptonReduction]: Number of co-enabled transitions 520 [2022-11-25 22:41:45,220 INFO L134 LiptonReduction]: Checked pairs total: 1285 [2022-11-25 22:41:45,221 INFO L136 LiptonReduction]: Total number of compositions: 73 [2022-11-25 22:41:45,229 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 18 transitions, 41 flow [2022-11-25 22:41:45,243 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 46 states, 42 states have (on average 1.9285714285714286) internal successors, (81), 45 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:41:45,262 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:41:45,268 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@222719e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:41:45,269 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-25 22:41:45,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 42 states have (on average 1.9285714285714286) internal successors, (81), 45 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:41:45,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-25 22:41:45,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:45,276 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-25 22:41:45,277 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-25 22:41:45,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:45,282 INFO L85 PathProgramCache]: Analyzing trace with hash 264, now seen corresponding path program 1 times [2022-11-25 22:41:45,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:41:45,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1227311609] [2022-11-25 22:41:45,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:45,296 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:41:45,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:41:45,297 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:41:45,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 22:41:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:45,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 22:41:45,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:41:45,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:41:45,376 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:41:45,377 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:41:45,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1227311609] [2022-11-25 22:41:45,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1227311609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:45,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:45,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 22:41:45,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303788895] [2022-11-25 22:41:45,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:45,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:41:45,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:41:45,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:41:45,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:41:45,434 INFO L87 Difference]: Start difference. First operand has 46 states, 42 states have (on average 1.9285714285714286) internal successors, (81), 45 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:41:45,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:45,491 INFO L93 Difference]: Finished difference Result 44 states and 73 transitions. [2022-11-25 22:41:45,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:41:45,493 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-25 22:41:45,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:45,501 INFO L225 Difference]: With dead ends: 44 [2022-11-25 22:41:45,501 INFO L226 Difference]: Without dead ends: 44 [2022-11-25 22:41:45,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:41:45,518 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:45,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:41:45,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-25 22:41:45,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-25 22:41:45,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 42 states have (on average 1.7380952380952381) internal successors, (73), 43 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:41:45,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 73 transitions. [2022-11-25 22:41:45,582 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 73 transitions. Word has length 1 [2022-11-25 22:41:45,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:45,583 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 73 transitions. [2022-11-25 22:41:45,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:41:45,584 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 73 transitions. [2022-11-25 22:41:45,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 22:41:45,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:45,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 22:41:45,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:41:45,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:41:45,785 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-25 22:41:45,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:45,786 INFO L85 PathProgramCache]: Analyzing trace with hash 247920894, now seen corresponding path program 1 times [2022-11-25 22:41:45,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:41:45,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1825961177] [2022-11-25 22:41:45,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:45,787 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:41:45,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:41:45,790 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:41:45,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 22:41:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:41:45,906 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:41:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:41:45,965 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-25 22:41:45,965 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:41:45,967 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2022-11-25 22:41:45,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2022-11-25 22:41:45,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2022-11-25 22:41:45,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2022-11-25 22:41:45,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-11-25 22:41:45,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:41:46,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:41:46,173 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 22:41:46,176 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 22:41:46,177 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:41:46,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:41:46 BasicIcfg [2022-11-25 22:41:46,203 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:41:46,205 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:41:46,205 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:41:46,205 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:41:46,205 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:41:38" (3/4) ... [2022-11-25 22:41:46,208 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 22:41:46,209 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:41:46,210 INFO L158 Benchmark]: Toolchain (without parser) took 9175.95ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 59.9MB in the beginning and 61.9MB in the end (delta: -2.0MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2022-11-25 22:41:46,211 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 79.7MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:41:46,211 INFO L158 Benchmark]: CACSL2BoogieTranslator took 628.67ms. Allocated memory is still 79.7MB. Free memory was 59.7MB in the beginning and 39.8MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 22:41:46,212 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.58ms. Allocated memory is still 79.7MB. Free memory was 39.6MB in the beginning and 37.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:41:46,213 INFO L158 Benchmark]: Boogie Preprocessor took 57.84ms. Allocated memory is still 79.7MB. Free memory was 37.5MB in the beginning and 36.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:41:46,220 INFO L158 Benchmark]: RCFGBuilder took 522.68ms. Allocated memory is still 79.7MB. Free memory was 36.0MB in the beginning and 47.2MB in the end (delta: -11.2MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-11-25 22:41:46,225 INFO L158 Benchmark]: TraceAbstraction took 7887.12ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 46.5MB in the beginning and 61.9MB in the end (delta: -15.4MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2022-11-25 22:41:46,225 INFO L158 Benchmark]: Witness Printer took 4.30ms. Allocated memory is still 102.8MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:41:46,230 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 79.7MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 628.67ms. Allocated memory is still 79.7MB. Free memory was 59.7MB in the beginning and 39.8MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.58ms. Allocated memory is still 79.7MB. Free memory was 39.6MB in the beginning and 37.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.84ms. Allocated memory is still 79.7MB. Free memory was 37.5MB in the beginning and 36.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 522.68ms. Allocated memory is still 79.7MB. Free memory was 36.0MB in the beginning and 47.2MB in the end (delta: -11.2MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * TraceAbstraction took 7887.12ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 46.5MB in the beginning and 61.9MB in the end (delta: -15.4MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Witness Printer took 4.30ms. Allocated memory is still 102.8MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.7s, 76 PlacesBefore, 21 PlacesAfterwards, 73 TransitionsBefore, 18 TransitionsAfterwards, 520 CoEnabledTransitionPairs, 7 FixpointIterations, 38 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 73 TotalNumberOfCompositions, 1285 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 659, independent: 550, independent conditional: 0, independent unconditional: 550, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 395, independent: 368, independent conditional: 0, independent unconditional: 368, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 395, independent: 349, independent conditional: 0, independent unconditional: 349, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 46, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 226, independent: 64, independent conditional: 0, independent unconditional: 64, dependent: 162, dependent conditional: 0, dependent unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 659, independent: 182, independent conditional: 0, independent unconditional: 182, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 395, unknown conditional: 0, unknown unconditional: 395] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, D={4:0}, g=0, id={7:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L698] CALL 0 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, cond=0, D={4:0}, g=0] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 85 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 7.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 2 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 22:41:46,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ae064b-5e17-462f-bd0c-5319ce97aa77/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample