./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.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_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/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_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/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_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/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 dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c --- 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 [2022-11-26 00:41:23,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:41:23,420 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:41:23,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:41:23,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:41:23,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:41:23,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:41:23,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:41:23,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:41:23,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:41:23,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:41:23,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:41:23,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:41:23,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:41:23,481 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:41:23,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:41:23,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:41:23,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:41:23,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:41:23,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:41:23,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:41:23,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:41:23,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:41:23,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:41:23,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:41:23,515 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:41:23,515 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:41:23,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:41:23,518 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:41:23,519 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:41:23,520 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:41:23,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:41:23,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:41:23,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:41:23,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:41:23,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:41:23,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:41:23,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:41:23,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:41:23,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:41:23,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:41:23,531 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-26 00:41:23,575 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:41:23,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:41:23,576 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:41:23,577 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:41:23,577 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:41:23,578 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:41:23,578 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:41:23,578 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:41:23,578 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:41:23,579 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:41:23,580 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:41:23,580 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:41:23,580 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:41:23,581 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:41:23,581 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:41:23,581 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:41:23,581 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:41:23,581 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:41:23,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-26 00:41:23,582 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-26 00:41:23,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:41:23,583 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:41:23,583 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:41:23,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:41:23,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:41:23,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:41:23,584 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-26 00:41:23,585 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-26 00:41:23,585 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-26 00:41:23,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:41:23,585 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:41:23,586 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:41:23,586 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:41:23,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:41:23,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:41:23,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:41:23,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:41:23,588 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:41:23,588 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:41:23,588 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:41:23,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:41:23,589 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:41:23,589 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_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c [2022-11-26 00:41:23,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:41:23,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:41:23,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:41:23,908 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:41:23,909 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:41:23,910 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-11-26 00:41:27,044 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:41:27,297 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:41:27,297 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-11-26 00:41:27,310 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur/data/4682f7059/d6c11a9b0a6d4c24ba94e80da452e03e/FLAG0bfb4371f [2022-11-26 00:41:27,324 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur/data/4682f7059/d6c11a9b0a6d4c24ba94e80da452e03e [2022-11-26 00:41:27,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:41:27,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:41:27,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:41:27,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:41:27,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:41:27,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:41:27" (1/1) ... [2022-11-26 00:41:27,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e60fac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:27, skipping insertion in model container [2022-11-26 00:41:27,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:41:27" (1/1) ... [2022-11-26 00:41:27,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:41:27,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:41:27,530 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_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-11-26 00:41:27,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:41:27,742 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:41:27,754 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_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-11-26 00:41:27,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:41:27,830 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:41:27,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:27 WrapperNode [2022-11-26 00:41:27,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:41:27,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:41:27,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:41:27,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:41:27,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:27" (1/1) ... [2022-11-26 00:41:27,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:27" (1/1) ... [2022-11-26 00:41:27,875 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-11-26 00:41:27,878 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:41:27,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:41:27,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:41:27,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:41:27,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:27" (1/1) ... [2022-11-26 00:41:27,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:27" (1/1) ... [2022-11-26 00:41:27,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:27" (1/1) ... [2022-11-26 00:41:27,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:27" (1/1) ... [2022-11-26 00:41:27,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:27" (1/1) ... [2022-11-26 00:41:27,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:27" (1/1) ... [2022-11-26 00:41:27,921 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:27" (1/1) ... [2022-11-26 00:41:27,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:27" (1/1) ... [2022-11-26 00:41:27,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:41:27,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:41:27,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:41:27,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:41:27,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:27" (1/1) ... [2022-11-26 00:41:27,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:41:27,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:41:27,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:41:28,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:41:28,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:41:28,035 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-26 00:41:28,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:41:28,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:41:28,035 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-26 00:41:28,036 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-26 00:41:28,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:41:28,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:41:28,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:41:28,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:41:28,038 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:41:28,248 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:41:28,249 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:41:28,484 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:41:28,491 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:41:28,491 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:41:28,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:41:28 BoogieIcfgContainer [2022-11-26 00:41:28,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:41:28,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:41:28,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:41:28,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:41:28,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:41:27" (1/3) ... [2022-11-26 00:41:28,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c81a30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:41:28, skipping insertion in model container [2022-11-26 00:41:28,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:27" (2/3) ... [2022-11-26 00:41:28,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c81a30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:41:28, skipping insertion in model container [2022-11-26 00:41:28,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:41:28" (3/3) ... [2022-11-26 00:41:28,503 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-11-26 00:41:28,522 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:41:28,522 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-26 00:41:28,522 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:41:28,583 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-26 00:41:28,631 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:41:28,651 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 84 transitions, 173 flow [2022-11-26 00:41:28,656 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 84 transitions, 173 flow [2022-11-26 00:41:28,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 84 transitions, 173 flow [2022-11-26 00:41:28,744 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2022-11-26 00:41:28,746 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-26 00:41:28,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2022-11-26 00:41:28,753 INFO L119 LiptonReduction]: Number of co-enabled transitions 680 [2022-11-26 00:41:32,573 INFO L134 LiptonReduction]: Checked pairs total: 1605 [2022-11-26 00:41:32,574 INFO L136 LiptonReduction]: Total number of compositions: 78 [2022-11-26 00:41:32,591 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 21 transitions, 47 flow [2022-11-26 00:41:32,609 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 64 states, 60 states have (on average 1.9) internal successors, (114), 63 states have internal predecessors, (114), 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) [2022-11-26 00:41:32,626 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:41:32,633 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;@7c62bad2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:41:32,633 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-26 00:41:32,635 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 60 states have (on average 1.9) internal successors, (114), 63 states have internal predecessors, (114), 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) [2022-11-26 00:41:32,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:41:32,639 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:41:32,640 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:41:32,640 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)] === [2022-11-26 00:41:32,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:41:32,650 INFO L85 PathProgramCache]: Analyzing trace with hash 296, now seen corresponding path program 1 times [2022-11-26 00:41:32,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:41:32,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486314311] [2022-11-26 00:41:32,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:41:32,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:41:32,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:41:32,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:41:32,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:41:32,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486314311] [2022-11-26 00:41:32,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486314311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:41:32,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:41:32,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:41:32,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481890239] [2022-11-26 00:41:32,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:41:32,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:41:32,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:41:32,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:41:32,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:41:32,859 INFO L87 Difference]: Start difference. First operand has 64 states, 60 states have (on average 1.9) internal successors, (114), 63 states have internal predecessors, (114), 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) [2022-11-26 00:41:32,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:41:32,907 INFO L93 Difference]: Finished difference Result 62 states and 112 transitions. [2022-11-26 00:41:32,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:41:32,910 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 [2022-11-26 00:41:32,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:41:32,918 INFO L225 Difference]: With dead ends: 62 [2022-11-26 00:41:32,918 INFO L226 Difference]: Without dead ends: 62 [2022-11-26 00:41:32,919 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 [2022-11-26 00:41:32,924 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:41:32,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:41:32,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-26 00:41:32,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-26 00:41:32,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 60 states have (on average 1.8666666666666667) internal successors, (112), 61 states have internal predecessors, (112), 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) [2022-11-26 00:41:32,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 112 transitions. [2022-11-26 00:41:32,972 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 112 transitions. Word has length 1 [2022-11-26 00:41:32,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:41:32,973 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 112 transitions. [2022-11-26 00:41:32,973 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) [2022-11-26 00:41:32,975 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 112 transitions. [2022-11-26 00:41:32,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:41:32,976 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:41:32,976 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:41:32,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:41:32,977 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)] === [2022-11-26 00:41:32,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:41:32,977 INFO L85 PathProgramCache]: Analyzing trace with hash 36763809, now seen corresponding path program 1 times [2022-11-26 00:41:32,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:41:32,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501380450] [2022-11-26 00:41:32,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:41:32,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:41:33,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:41:33,066 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:41:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:41:33,159 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:41:33,161 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:41:33,164 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2022-11-26 00:41:33,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2022-11-26 00:41:33,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2022-11-26 00:41:33,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2022-11-26 00:41:33,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-11-26 00:41:33,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:41:33,176 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-26 00:41:33,181 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:41:33,182 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:41:33,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:41:33 BasicIcfg [2022-11-26 00:41:33,216 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:41:33,218 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:41:33,218 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:41:33,219 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:41:33,219 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:41:28" (3/4) ... [2022-11-26 00:41:33,223 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:41:33,223 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:41:33,229 INFO L158 Benchmark]: Toolchain (without parser) took 5895.32ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 97.1MB in the beginning and 94.0MB in the end (delta: 3.0MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-11-26 00:41:33,232 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 113.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:41:33,234 INFO L158 Benchmark]: CACSL2BoogieTranslator took 500.97ms. Allocated memory is still 142.6MB. Free memory was 96.5MB in the beginning and 77.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-26 00:41:33,234 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.31ms. Allocated memory is still 142.6MB. Free memory was 77.7MB in the beginning and 75.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:41:33,235 INFO L158 Benchmark]: Boogie Preprocessor took 54.58ms. Allocated memory is still 142.6MB. Free memory was 75.6MB in the beginning and 74.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:41:33,235 INFO L158 Benchmark]: RCFGBuilder took 559.95ms. Allocated memory is still 142.6MB. Free memory was 74.0MB in the beginning and 60.7MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-26 00:41:33,241 INFO L158 Benchmark]: TraceAbstraction took 4720.60ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 59.9MB in the beginning and 95.1MB in the end (delta: -35.2MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2022-11-26 00:41:33,242 INFO L158 Benchmark]: Witness Printer took 5.02ms. Allocated memory is still 184.5MB. Free memory was 95.1MB in the beginning and 94.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:41:33,245 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 113.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 500.97ms. Allocated memory is still 142.6MB. Free memory was 96.5MB in the beginning and 77.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.31ms. Allocated memory is still 142.6MB. Free memory was 77.7MB in the beginning and 75.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.58ms. Allocated memory is still 142.6MB. Free memory was 75.6MB in the beginning and 74.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 559.95ms. Allocated memory is still 142.6MB. Free memory was 74.0MB in the beginning and 60.7MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4720.60ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 59.9MB in the beginning and 95.1MB in the end (delta: -35.2MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Witness Printer took 5.02ms. Allocated memory is still 184.5MB. Free memory was 95.1MB in the beginning and 94.0MB 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: 3.9s, 86 PlacesBefore, 24 PlacesAfterwards, 84 TransitionsBefore, 21 TransitionsAfterwards, 680 CoEnabledTransitionPairs, 6 FixpointIterations, 43 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 78 TotalNumberOfCompositions, 1605 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 839, independent: 697, independent conditional: 0, independent unconditional: 697, dependent: 142, dependent conditional: 0, dependent unconditional: 142, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 473, independent: 427, independent conditional: 0, independent unconditional: 427, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 473, independent: 403, independent conditional: 0, independent unconditional: 403, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 70, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 233, independent: 73, independent conditional: 0, independent unconditional: 73, dependent: 159, dependent conditional: 0, dependent unconditional: 159, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 839, independent: 270, independent conditional: 0, independent unconditional: 270, dependent: 96, dependent conditional: 0, dependent unconditional: 96, unknown: 473, unknown conditional: 0, unknown unconditional: 473] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 44, Positive conditional cache size: 0, Positive unconditional cache size: 44, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, 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: [L682] 0 int g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, r=0] [L700] COND FALSE 0 !(\read(r)) [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(t == 17) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=42] - 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: 693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: 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, 95 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 3 mSDtfsCounter, 14 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=64occurred 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, 7 NumberOfCodeBlocks, 7 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 [2022-11-26 00:41:33,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/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_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/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_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/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_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/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 dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c --- 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 [2022-11-26 00:41:35,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:41:35,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:41:35,754 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:41:35,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:41:35,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:41:35,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:41:35,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:41:35,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:41:35,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:41:35,762 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:41:35,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:41:35,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:41:35,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:41:35,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:41:35,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:41:35,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:41:35,785 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:41:35,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:41:35,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:41:35,789 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:41:35,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:41:35,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:41:35,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:41:35,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:41:35,808 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:41:35,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:41:35,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:41:35,810 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:41:35,810 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:41:35,811 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:41:35,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:41:35,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:41:35,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:41:35,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:41:35,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:41:35,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:41:35,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:41:35,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:41:35,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:41:35,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:41:35,836 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-26 00:41:35,874 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:41:35,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:41:35,875 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:41:35,875 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:41:35,876 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:41:35,876 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:41:35,876 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:41:35,877 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:41:35,877 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:41:35,877 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:41:35,878 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:41:35,879 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:41:35,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-26 00:41:35,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-26 00:41:35,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:41:35,880 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:41:35,880 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:41:35,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:41:35,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:41:35,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:41:35,881 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-26 00:41:35,881 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-26 00:41:35,882 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-26 00:41:35,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:41:35,882 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:41:35,882 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:41:35,883 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:41:35,883 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:41:35,883 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:41:35,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:41:35,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:41:35,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:41:35,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:41:35,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:41:35,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:41:35,885 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:41:35,885 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:41:35,885 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:41:35,886 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:41:35,886 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_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c [2022-11-26 00:41:36,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:41:36,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:41:36,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:41:36,276 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:41:36,276 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:41:36,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-11-26 00:41:39,316 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:41:39,663 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:41:39,664 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-11-26 00:41:39,684 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur/data/264fadb1d/1241cf60cf274ea2afc827e05b164eca/FLAG43a650ea1 [2022-11-26 00:41:39,698 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur/data/264fadb1d/1241cf60cf274ea2afc827e05b164eca [2022-11-26 00:41:39,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:41:39,702 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:41:39,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:41:39,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:41:39,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:41:39,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:41:39" (1/1) ... [2022-11-26 00:41:39,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d67d216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:39, skipping insertion in model container [2022-11-26 00:41:39,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:41:39" (1/1) ... [2022-11-26 00:41:39,717 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:41:39,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:41:39,909 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_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-11-26 00:41:40,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:41:40,190 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:41:40,212 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_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-11-26 00:41:40,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:41:40,317 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:41:40,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:40 WrapperNode [2022-11-26 00:41:40,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:41:40,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:41:40,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:41:40,320 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:41:40,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:40" (1/1) ... [2022-11-26 00:41:40,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:40" (1/1) ... [2022-11-26 00:41:40,390 INFO L138 Inliner]: procedures = 167, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-11-26 00:41:40,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:41:40,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:41:40,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:41:40,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:41:40,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:40" (1/1) ... [2022-11-26 00:41:40,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:40" (1/1) ... [2022-11-26 00:41:40,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:40" (1/1) ... [2022-11-26 00:41:40,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:40" (1/1) ... [2022-11-26 00:41:40,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:40" (1/1) ... [2022-11-26 00:41:40,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:40" (1/1) ... [2022-11-26 00:41:40,426 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:40" (1/1) ... [2022-11-26 00:41:40,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:40" (1/1) ... [2022-11-26 00:41:40,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:41:40,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:41:40,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:41:40,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:41:40,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:40" (1/1) ... [2022-11-26 00:41:40,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:41:40,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:41:40,540 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:41:40,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:41:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-26 00:41:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:41:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:41:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-26 00:41:40,590 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-26 00:41:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:41:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-26 00:41:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 00:41:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-26 00:41:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:41:40,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:41:40,593 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:41:40,782 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:41:40,798 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:41:41,070 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:41:41,076 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:41:41,076 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:41:41,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:41:41 BoogieIcfgContainer [2022-11-26 00:41:41,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:41:41,080 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:41:41,080 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:41:41,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:41:41,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:41:39" (1/3) ... [2022-11-26 00:41:41,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44fafc9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:41:41, skipping insertion in model container [2022-11-26 00:41:41,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:40" (2/3) ... [2022-11-26 00:41:41,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44fafc9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:41:41, skipping insertion in model container [2022-11-26 00:41:41,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:41:41" (3/3) ... [2022-11-26 00:41:41,095 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-11-26 00:41:41,115 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:41:41,115 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-26 00:41:41,115 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:41:41,197 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-26 00:41:41,246 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:41:41,275 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 84 transitions, 173 flow [2022-11-26 00:41:41,278 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 84 transitions, 173 flow [2022-11-26 00:41:41,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 84 transitions, 173 flow [2022-11-26 00:41:41,324 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2022-11-26 00:41:41,324 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-26 00:41:41,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2022-11-26 00:41:41,330 INFO L119 LiptonReduction]: Number of co-enabled transitions 680 [2022-11-26 00:41:48,071 INFO L134 LiptonReduction]: Checked pairs total: 1915 [2022-11-26 00:41:48,071 INFO L136 LiptonReduction]: Total number of compositions: 79 [2022-11-26 00:41:48,080 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 22 transitions, 49 flow [2022-11-26 00:41:48,096 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 70 states, 66 states have (on average 1.893939393939394) internal successors, (125), 69 states have internal predecessors, (125), 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) [2022-11-26 00:41:48,113 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:41:48,120 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;@19b3ca79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:41:48,120 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-26 00:41:48,123 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 66 states have (on average 1.893939393939394) internal successors, (125), 69 states have internal predecessors, (125), 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) [2022-11-26 00:41:48,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:41:48,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:41:48,129 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:41:48,129 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)] === [2022-11-26 00:41:48,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:41:48,135 INFO L85 PathProgramCache]: Analyzing trace with hash 296, now seen corresponding path program 1 times [2022-11-26 00:41:48,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:41:48,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110392391] [2022-11-26 00:41:48,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:41:48,149 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 [2022-11-26 00:41:48,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:41:48,159 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/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) [2022-11-26 00:41:48,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/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 [2022-11-26 00:41:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:41:48,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-26 00:41:48,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:41:48,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:41:48,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:41:48,253 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:41:48,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110392391] [2022-11-26 00:41:48,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1110392391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:41:48,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:41:48,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:41:48,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012581401] [2022-11-26 00:41:48,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:41:48,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:41:48,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:41:48,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:41:48,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:41:48,295 INFO L87 Difference]: Start difference. First operand has 70 states, 66 states have (on average 1.893939393939394) internal successors, (125), 69 states have internal predecessors, (125), 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) [2022-11-26 00:41:48,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:41:48,359 INFO L93 Difference]: Finished difference Result 68 states and 123 transitions. [2022-11-26 00:41:48,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:41:48,362 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 [2022-11-26 00:41:48,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:41:48,370 INFO L225 Difference]: With dead ends: 68 [2022-11-26 00:41:48,383 INFO L226 Difference]: Without dead ends: 68 [2022-11-26 00:41:48,384 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 [2022-11-26 00:41:48,387 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:41:48,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:41:48,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-26 00:41:48,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-11-26 00:41:48,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 66 states have (on average 1.8636363636363635) internal successors, (123), 67 states have internal predecessors, (123), 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) [2022-11-26 00:41:48,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 123 transitions. [2022-11-26 00:41:48,425 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 123 transitions. Word has length 1 [2022-11-26 00:41:48,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:41:48,425 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 123 transitions. [2022-11-26 00:41:48,426 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) [2022-11-26 00:41:48,426 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 123 transitions. [2022-11-26 00:41:48,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:41:48,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:41:48,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:41:48,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/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 [2022-11-26 00:41:48,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/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 [2022-11-26 00:41:48,638 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)] === [2022-11-26 00:41:48,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:41:48,638 INFO L85 PathProgramCache]: Analyzing trace with hash 122383112, now seen corresponding path program 1 times [2022-11-26 00:41:48,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:41:48,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [996544676] [2022-11-26 00:41:48,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:41:48,640 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 [2022-11-26 00:41:48,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:41:48,641 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/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) [2022-11-26 00:41:48,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/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 [2022-11-26 00:41:48,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:41:48,727 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:41:48,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:41:48,779 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-26 00:41:48,780 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:41:48,782 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2022-11-26 00:41:48,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2022-11-26 00:41:48,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2022-11-26 00:41:48,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2022-11-26 00:41:48,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-11-26 00:41:48,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/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 [2022-11-26 00:41:48,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/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 [2022-11-26 00:41:48,988 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-26 00:41:48,993 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:41:48,993 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:41:49,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:41:49 BasicIcfg [2022-11-26 00:41:49,016 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:41:49,017 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:41:49,017 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:41:49,018 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:41:49,018 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:41:41" (3/4) ... [2022-11-26 00:41:49,021 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:41:49,021 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:41:49,024 INFO L158 Benchmark]: Toolchain (without parser) took 9320.52ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 69.9MB in the beginning and 80.1MB in the end (delta: -10.2MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2022-11-26 00:41:49,024 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 65.0MB. Free memory was 43.6MB in the beginning and 43.5MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:41:49,025 INFO L158 Benchmark]: CACSL2BoogieTranslator took 615.88ms. Allocated memory is still 92.3MB. Free memory was 69.7MB in the beginning and 49.5MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-26 00:41:49,025 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.22ms. Allocated memory is still 92.3MB. Free memory was 49.5MB in the beginning and 47.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:41:49,031 INFO L158 Benchmark]: Boogie Preprocessor took 50.54ms. Allocated memory is still 92.3MB. Free memory was 47.4MB in the beginning and 45.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:41:49,035 INFO L158 Benchmark]: RCFGBuilder took 634.95ms. Allocated memory is still 92.3MB. Free memory was 45.8MB in the beginning and 58.0MB in the end (delta: -12.2MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2022-11-26 00:41:49,040 INFO L158 Benchmark]: TraceAbstraction took 7935.71ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 57.4MB in the beginning and 80.1MB in the end (delta: -22.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:41:49,040 INFO L158 Benchmark]: Witness Printer took 5.08ms. Allocated memory is still 111.1MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:41:49,043 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 65.0MB. Free memory was 43.6MB in the beginning and 43.5MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 615.88ms. Allocated memory is still 92.3MB. Free memory was 69.7MB in the beginning and 49.5MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.22ms. Allocated memory is still 92.3MB. Free memory was 49.5MB in the beginning and 47.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.54ms. Allocated memory is still 92.3MB. Free memory was 47.4MB in the beginning and 45.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 634.95ms. Allocated memory is still 92.3MB. Free memory was 45.8MB in the beginning and 58.0MB in the end (delta: -12.2MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. * TraceAbstraction took 7935.71ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 57.4MB in the beginning and 80.1MB in the end (delta: -22.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.08ms. Allocated memory is still 111.1MB. Free memory is still 80.1MB. 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: 6.8s, 86 PlacesBefore, 25 PlacesAfterwards, 84 TransitionsBefore, 22 TransitionsAfterwards, 680 CoEnabledTransitionPairs, 7 FixpointIterations, 43 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 79 TotalNumberOfCompositions, 1915 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 866, independent: 687, independent conditional: 0, independent unconditional: 687, dependent: 179, dependent conditional: 0, dependent unconditional: 179, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 463, independent: 417, independent conditional: 0, independent unconditional: 417, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 463, independent: 392, independent conditional: 0, independent unconditional: 392, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 71, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 439, independent: 135, independent conditional: 0, independent unconditional: 135, dependent: 304, dependent conditional: 0, dependent unconditional: 304, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 866, independent: 270, independent conditional: 0, independent unconditional: 270, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 463, unknown conditional: 0, unknown unconditional: 463] , Statistics on independence cache: Total cache size (in pairs): 64, Positive cache size: 44, Positive conditional cache size: 0, Positive unconditional cache size: 44, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: [L682] 0 int g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={7:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L700] COND FALSE 0 !(\read(r)) [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(t == 17) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=42] - 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: 693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: 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, 95 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 7.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 14 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=70occurred 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, 7 NumberOfCodeBlocks, 7 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 [2022-11-26 00:41:49,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c12fa2d5-cff2-4fb0-a4a0-64d1f163196c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample