./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh --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 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 09:10:54,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:10:54,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:10:54,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:10:54,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:10:54,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:10:54,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:10:54,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:10:54,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:10:54,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:10:54,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:10:54,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:10:54,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:10:54,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:10:54,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:10:54,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:10:54,978 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:10:54,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:10:54,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:10:54,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:10:54,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:10:54,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:10:54,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:10:54,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:10:54,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:10:54,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:10:54,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:10:54,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:10:54,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:10:54,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:10:54,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:10:54,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:10:54,988 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:10:54,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:10:54,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:10:54,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:10:54,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:10:54,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:10:54,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:10:54,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:10:54,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:10:54,991 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 09:10:55,005 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:10:55,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:10:55,005 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:10:55,005 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:10:55,006 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:10:55,006 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:10:55,006 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:10:55,006 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:10:55,006 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:10:55,006 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:10:55,006 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:10:55,006 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:10:55,006 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:10:55,006 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:10:55,006 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:10:55,007 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:10:55,007 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:10:55,007 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:10:55,007 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 09:10:55,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 09:10:55,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:10:55,008 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:10:55,008 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 09:10:55,008 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:10:55,008 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:10:55,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:10:55,008 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 09:10:55,008 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 09:10:55,008 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 09:10:55,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:10:55,008 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 09:10:55,008 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:10:55,009 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:10:55,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:10:55,009 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:10:55,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:10:55,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:10:55,009 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:10:55,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:10:55,009 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:10:55,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:10:55,009 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:10:55,009 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_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 [2022-12-14 09:10:55,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:10:55,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:10:55,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:10:55,233 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:10:55,234 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:10:55,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2022-12-14 09:10:57,792 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:10:58,000 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:10:58,000 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2022-12-14 09:10:58,013 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/data/6d9b744e7/f744d9aa21b8461ca93e4a5507ba993c/FLAG29bc46afa [2022-12-14 09:10:58,360 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/data/6d9b744e7/f744d9aa21b8461ca93e4a5507ba993c [2022-12-14 09:10:58,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:10:58,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:10:58,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:10:58,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:10:58,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:10:58,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:10:58" (1/1) ... [2022-12-14 09:10:58,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1522999f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:10:58, skipping insertion in model container [2022-12-14 09:10:58,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:10:58" (1/1) ... [2022-12-14 09:10:58,373 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:10:58,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:10:58,493 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_eac6111e-0203-4104-b2a6-fd4b688cf7fc/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2022-12-14 09:10:58,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:10:58,581 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:10:58,589 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_eac6111e-0203-4104-b2a6-fd4b688cf7fc/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2022-12-14 09:10:58,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:10:58,630 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:10:58,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:10:58 WrapperNode [2022-12-14 09:10:58,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:10:58,631 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:10:58,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:10:58,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:10:58,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:10:58" (1/1) ... [2022-12-14 09:10:58,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:10:58" (1/1) ... [2022-12-14 09:10:58,658 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-12-14 09:10:58,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:10:58,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:10:58,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:10:58,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:10:58,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:10:58" (1/1) ... [2022-12-14 09:10:58,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:10:58" (1/1) ... [2022-12-14 09:10:58,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:10:58" (1/1) ... [2022-12-14 09:10:58,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:10:58" (1/1) ... [2022-12-14 09:10:58,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:10:58" (1/1) ... [2022-12-14 09:10:58,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:10:58" (1/1) ... [2022-12-14 09:10:58,672 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:10:58" (1/1) ... [2022-12-14 09:10:58,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:10:58" (1/1) ... [2022-12-14 09:10:58,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:10:58,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:10:58,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:10:58,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:10:58,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:10:58" (1/1) ... [2022-12-14 09:10:58,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:10:58,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:10:58,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:10:58,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:10:58,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:10:58,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:10:58,721 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 09:10:58,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:10:58,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:10:58,721 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-14 09:10:58,722 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-14 09:10:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:10:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:10:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:10:58,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:10:58,723 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 09:10:58,814 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:10:58,816 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:10:58,926 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:10:58,931 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:10:58,931 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 09:10:58,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:10:58 BoogieIcfgContainer [2022-12-14 09:10:58,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:10:58,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:10:58,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:10:58,937 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:10:58,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:10:58" (1/3) ... [2022-12-14 09:10:58,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dba0759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:10:58, skipping insertion in model container [2022-12-14 09:10:58,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:10:58" (2/3) ... [2022-12-14 09:10:58,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dba0759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:10:58, skipping insertion in model container [2022-12-14 09:10:58,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:10:58" (3/3) ... [2022-12-14 09:10:58,939 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_neg.i [2022-12-14 09:10:58,953 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:10:58,953 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 09:10:58,953 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 09:10:58,994 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-14 09:10:59,017 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 09:10:59,028 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 72 transitions, 152 flow [2022-12-14 09:10:59,030 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 72 transitions, 152 flow [2022-12-14 09:10:59,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 72 transitions, 152 flow [2022-12-14 09:10:59,059 INFO L130 PetriNetUnfolder]: 2/71 cut-off events. [2022-12-14 09:10:59,059 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-14 09:10:59,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 71 events. 2/71 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-12-14 09:10:59,063 INFO L119 LiptonReduction]: Number of co-enabled transitions 384 [2022-12-14 09:11:00,989 INFO L134 LiptonReduction]: Checked pairs total: 669 [2022-12-14 09:11:00,990 INFO L136 LiptonReduction]: Total number of compositions: 76 [2022-12-14 09:11:00,995 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 15 transitions, 38 flow [2022-12-14 09:11:01,002 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 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) [2022-12-14 09:11:01,017 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:11:01,021 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;@314bccda, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:11:01,021 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-14 09:11:01,023 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 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) [2022-12-14 09:11:01,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 09:11:01,026 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:11:01,026 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 09:11:01,026 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-12-14 09:11:01,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:11:01,030 INFO L85 PathProgramCache]: Analyzing trace with hash 284, now seen corresponding path program 1 times [2022-12-14 09:11:01,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:11:01,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692053274] [2022-12-14 09:11:01,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:11:01,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:11:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:11:01,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:11:01,109 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:11:01,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692053274] [2022-12-14 09:11:01,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692053274] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:11:01,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:11:01,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 09:11:01,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577539066] [2022-12-14 09:11:01,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:11:01,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:11:01,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:11:01,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:11:01,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:11:01,133 INFO L87 Difference]: Start difference. First operand has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 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) [2022-12-14 09:11:01,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:11:01,157 INFO L93 Difference]: Finished difference Result 24 states and 35 transitions. [2022-12-14 09:11:01,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:11:01,159 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 [2022-12-14 09:11:01,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:11:01,166 INFO L225 Difference]: With dead ends: 24 [2022-12-14 09:11:01,167 INFO L226 Difference]: Without dead ends: 24 [2022-12-14 09:11:01,167 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 [2022-12-14 09:11:01,170 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:11:01,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:11:01,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-12-14 09:11:01,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-12-14 09:11:01,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 23 states have internal predecessors, (35), 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) [2022-12-14 09:11:01,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 35 transitions. [2022-12-14 09:11:01,201 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 35 transitions. Word has length 1 [2022-12-14 09:11:01,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:11:01,202 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 35 transitions. [2022-12-14 09:11:01,202 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) [2022-12-14 09:11:01,202 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2022-12-14 09:11:01,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 09:11:01,203 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:11:01,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 09:11:01,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:11:01,203 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-12-14 09:11:01,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:11:01,204 INFO L85 PathProgramCache]: Analyzing trace with hash 280616, now seen corresponding path program 1 times [2022-12-14 09:11:01,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:11:01,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799685561] [2022-12-14 09:11:01,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:11:01,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:11:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:11:01,244 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:11:01,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:11:01,278 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 09:11:01,278 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:11:01,280 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2022-12-14 09:11:01,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2022-12-14 09:11:01,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2022-12-14 09:11:01,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2022-12-14 09:11:01,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2022-12-14 09:11:01,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2022-12-14 09:11:01,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-12-14 09:11:01,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2022-12-14 09:11:01,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:11:01,284 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 09:11:01,288 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 09:11:01,288 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:11:01,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:11:01 BasicIcfg [2022-12-14 09:11:01,300 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:11:01,300 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:11:01,301 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:11:01,301 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:11:01,301 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:10:58" (3/4) ... [2022-12-14 09:11:01,304 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 09:11:01,304 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:11:01,305 INFO L158 Benchmark]: Toolchain (without parser) took 2941.69ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 112.2MB in the beginning and 128.7MB in the end (delta: -16.5MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2022-12-14 09:11:01,305 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 148.9MB. Free memory is still 121.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:11:01,305 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.34ms. Allocated memory is still 148.9MB. Free memory was 111.7MB in the beginning and 93.3MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 09:11:01,306 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.55ms. Allocated memory is still 148.9MB. Free memory was 93.3MB in the beginning and 91.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:11:01,306 INFO L158 Benchmark]: Boogie Preprocessor took 15.56ms. Allocated memory is still 148.9MB. Free memory was 91.4MB in the beginning and 89.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:11:01,307 INFO L158 Benchmark]: RCFGBuilder took 257.34ms. Allocated memory is still 148.9MB. Free memory was 89.8MB in the beginning and 77.1MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 09:11:01,307 INFO L158 Benchmark]: TraceAbstraction took 2365.78ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 76.1MB in the beginning and 129.8MB in the end (delta: -53.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:11:01,308 INFO L158 Benchmark]: Witness Printer took 3.46ms. Allocated memory is still 180.4MB. Free memory was 129.8MB in the beginning and 128.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:11:01,310 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 148.9MB. Free memory is still 121.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.34ms. Allocated memory is still 148.9MB. Free memory was 111.7MB in the beginning and 93.3MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.55ms. Allocated memory is still 148.9MB. Free memory was 93.3MB in the beginning and 91.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.56ms. Allocated memory is still 148.9MB. Free memory was 91.4MB in the beginning and 89.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 257.34ms. Allocated memory is still 148.9MB. Free memory was 89.8MB in the beginning and 77.1MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2365.78ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 76.1MB in the beginning and 129.8MB in the end (delta: -53.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.46ms. Allocated memory is still 180.4MB. Free memory was 129.8MB in the beginning and 128.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 74 PlacesBefore, 19 PlacesAfterwards, 72 TransitionsBefore, 15 TransitionsAfterwards, 384 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 76 TotalNumberOfCompositions, 669 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 520, independent: 464, independent conditional: 0, independent unconditional: 464, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 308, independent: 286, independent conditional: 0, independent unconditional: 286, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 308, independent: 280, independent conditional: 0, independent unconditional: 280, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 28, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 79, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 520, independent: 178, independent conditional: 0, independent unconditional: 178, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 308, unknown conditional: 0, unknown unconditional: 308] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, 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 glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND TRUE 1 t == 42 [L688] 1 glob1 = 1 [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(!(t == 1)) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=1, mutex1={3:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -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: 696]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 698]: 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, 8 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 4 NumberOfCodeBlocks, 4 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 [2022-12-14 09:11:01,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/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_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh --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 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 09:11:02,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:11:02,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:11:02,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:11:02,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:11:02,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:11:02,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:11:02,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:11:02,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:11:02,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:11:02,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:11:02,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:11:02,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:11:02,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:11:02,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:11:02,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:11:02,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:11:02,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:11:02,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:11:02,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:11:02,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:11:02,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:11:02,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:11:02,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:11:02,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:11:02,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:11:02,909 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:11:02,910 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:11:02,910 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:11:02,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:11:02,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:11:02,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:11:02,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:11:02,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:11:02,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:11:02,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:11:02,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:11:02,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:11:02,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:11:02,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:11:02,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:11:02,925 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-12-14 09:11:02,948 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:11:02,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:11:02,948 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:11:02,948 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:11:02,949 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:11:02,949 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:11:02,949 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:11:02,949 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:11:02,949 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:11:02,949 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:11:02,949 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:11:02,950 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:11:02,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 09:11:02,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 09:11:02,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:11:02,950 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:11:02,951 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 09:11:02,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:11:02,951 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:11:02,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:11:02,951 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 09:11:02,951 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 09:11:02,951 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 09:11:02,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:11:02,951 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 09:11:02,952 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 09:11:02,952 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 09:11:02,952 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:11:02,952 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:11:02,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:11:02,952 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 09:11:02,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:11:02,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:11:02,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:11:02,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:11:02,953 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 09:11:02,953 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 09:11:02,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:11:02,953 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 09:11:02,953 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_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 [2022-12-14 09:11:03,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:11:03,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:11:03,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:11:03,204 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:11:03,204 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:11:03,205 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2022-12-14 09:11:05,734 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:11:05,948 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:11:05,948 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2022-12-14 09:11:05,959 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/data/3b46fbcf0/eb0b8a49b0aa4c9bb3476e50a395c8b7/FLAG8c1b4934e [2022-12-14 09:11:05,974 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/data/3b46fbcf0/eb0b8a49b0aa4c9bb3476e50a395c8b7 [2022-12-14 09:11:05,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:11:05,978 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:11:05,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:11:05,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:11:05,983 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:11:05,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:11:05" (1/1) ... [2022-12-14 09:11:05,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a1c5950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:11:05, skipping insertion in model container [2022-12-14 09:11:05,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:11:05" (1/1) ... [2022-12-14 09:11:05,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:11:06,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:11:06,161 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_eac6111e-0203-4104-b2a6-fd4b688cf7fc/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2022-12-14 09:11:06,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:11:06,300 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:11:06,312 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2022-12-14 09:11:06,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:11:06,369 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:11:06,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:11:06 WrapperNode [2022-12-14 09:11:06,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:11:06,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:11:06,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:11:06,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:11:06,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:11:06" (1/1) ... [2022-12-14 09:11:06,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:11:06" (1/1) ... [2022-12-14 09:11:06,409 INFO L138 Inliner]: procedures = 167, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-12-14 09:11:06,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:11:06,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:11:06,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:11:06,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:11:06,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:11:06" (1/1) ... [2022-12-14 09:11:06,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:11:06" (1/1) ... [2022-12-14 09:11:06,422 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:11:06" (1/1) ... [2022-12-14 09:11:06,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:11:06" (1/1) ... [2022-12-14 09:11:06,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:11:06" (1/1) ... [2022-12-14 09:11:06,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:11:06" (1/1) ... [2022-12-14 09:11:06,431 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:11:06" (1/1) ... [2022-12-14 09:11:06,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:11:06" (1/1) ... [2022-12-14 09:11:06,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:11:06,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:11:06,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:11:06,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:11:06,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:11:06" (1/1) ... [2022-12-14 09:11:06,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:11:06,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:11:06,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:11:06,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:11:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 09:11:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 09:11:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:11:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:11:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-14 09:11:06,500 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-14 09:11:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:11:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 09:11:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 09:11:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-12-14 09:11:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:11:06,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:11:06,502 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 09:11:06,619 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:11:06,621 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:11:06,788 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:11:06,794 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:11:06,794 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 09:11:06,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:11:06 BoogieIcfgContainer [2022-12-14 09:11:06,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:11:06,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:11:06,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:11:06,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:11:06,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:11:05" (1/3) ... [2022-12-14 09:11:06,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60bac9fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:11:06, skipping insertion in model container [2022-12-14 09:11:06,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:11:06" (2/3) ... [2022-12-14 09:11:06,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60bac9fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:11:06, skipping insertion in model container [2022-12-14 09:11:06,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:11:06" (3/3) ... [2022-12-14 09:11:06,805 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_neg.i [2022-12-14 09:11:06,824 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:11:06,824 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 09:11:06,824 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 09:11:06,875 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-14 09:11:06,900 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 09:11:06,914 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 72 transitions, 152 flow [2022-12-14 09:11:06,917 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 72 transitions, 152 flow [2022-12-14 09:11:06,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 72 transitions, 152 flow [2022-12-14 09:11:06,955 INFO L130 PetriNetUnfolder]: 2/71 cut-off events. [2022-12-14 09:11:06,955 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-14 09:11:06,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 71 events. 2/71 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 38 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2022-12-14 09:11:06,960 INFO L119 LiptonReduction]: Number of co-enabled transitions 368 [2022-12-14 09:11:10,921 INFO L134 LiptonReduction]: Checked pairs total: 638 [2022-12-14 09:11:10,922 INFO L136 LiptonReduction]: Total number of compositions: 74 [2022-12-14 09:11:10,929 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 15 transitions, 38 flow [2022-12-14 09:11:10,937 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 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) [2022-12-14 09:11:10,950 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:11:10,955 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;@625668d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:11:10,955 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-14 09:11:10,958 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 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) [2022-12-14 09:11:10,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 09:11:10,963 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:11:10,964 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 09:11:10,964 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-12-14 09:11:10,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:11:10,969 INFO L85 PathProgramCache]: Analyzing trace with hash 282, now seen corresponding path program 1 times [2022-12-14 09:11:10,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 09:11:10,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [539486849] [2022-12-14 09:11:10,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:11:10,984 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 [2022-12-14 09:11:10,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 09:11:10,985 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/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) [2022-12-14 09:11:10,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/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 [2022-12-14 09:11:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:11:11,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 09:11:11,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:11:11,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:11:11,036 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:11:11,036 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 09:11:11,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [539486849] [2022-12-14 09:11:11,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [539486849] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:11:11,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:11:11,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 09:11:11,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597764235] [2022-12-14 09:11:11,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:11:11,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:11:11,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 09:11:11,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:11:11,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:11:11,069 INFO L87 Difference]: Start difference. First operand has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 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) [2022-12-14 09:11:11,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:11:11,104 INFO L93 Difference]: Finished difference Result 24 states and 35 transitions. [2022-12-14 09:11:11,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:11:11,106 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 [2022-12-14 09:11:11,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:11:11,111 INFO L225 Difference]: With dead ends: 24 [2022-12-14 09:11:11,111 INFO L226 Difference]: Without dead ends: 24 [2022-12-14 09:11:11,112 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 [2022-12-14 09:11:11,114 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:11:11,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:11:11,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-12-14 09:11:11,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-12-14 09:11:11,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 23 states have internal predecessors, (35), 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) [2022-12-14 09:11:11,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 35 transitions. [2022-12-14 09:11:11,136 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 35 transitions. Word has length 1 [2022-12-14 09:11:11,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:11:11,136 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 35 transitions. [2022-12-14 09:11:11,136 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) [2022-12-14 09:11:11,136 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2022-12-14 09:11:11,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 09:11:11,136 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:11:11,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 09:11:11,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/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 [2022-12-14 09:11:11,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/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 [2022-12-14 09:11:11,339 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-12-14 09:11:11,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:11:11,340 INFO L85 PathProgramCache]: Analyzing trace with hash 275777, now seen corresponding path program 1 times [2022-12-14 09:11:11,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 09:11:11,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2111586469] [2022-12-14 09:11:11,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:11:11,343 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 [2022-12-14 09:11:11,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 09:11:11,347 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/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) [2022-12-14 09:11:11,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/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 [2022-12-14 09:11:11,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:11:11,470 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:11:11,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:11:11,507 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 09:11:11,508 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:11:11,509 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2022-12-14 09:11:11,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2022-12-14 09:11:11,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2022-12-14 09:11:11,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2022-12-14 09:11:11,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2022-12-14 09:11:11,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2022-12-14 09:11:11,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-12-14 09:11:11,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2022-12-14 09:11:11,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 09:11:11,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/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 [2022-12-14 09:11:11,717 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 09:11:11,725 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 09:11:11,725 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:11:11,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:11:11 BasicIcfg [2022-12-14 09:11:11,760 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:11:11,761 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:11:11,761 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:11:11,761 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:11:11,762 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:11:06" (3/4) ... [2022-12-14 09:11:11,766 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 09:11:11,766 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:11:11,767 INFO L158 Benchmark]: Toolchain (without parser) took 5789.45ms. Allocated memory is still 77.6MB. Free memory was 51.9MB in the beginning and 34.5MB in the end (delta: 17.4MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2022-12-14 09:11:11,768 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 54.5MB. Free memory is still 33.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:11:11,768 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.39ms. Allocated memory is still 77.6MB. Free memory was 51.6MB in the beginning and 49.0MB in the end (delta: 2.6MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2022-12-14 09:11:11,769 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.49ms. Allocated memory is still 77.6MB. Free memory was 49.0MB in the beginning and 46.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:11:11,770 INFO L158 Benchmark]: Boogie Preprocessor took 24.71ms. Allocated memory is still 77.6MB. Free memory was 46.9MB in the beginning and 45.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:11:11,770 INFO L158 Benchmark]: RCFGBuilder took 361.31ms. Allocated memory is still 77.6MB. Free memory was 45.5MB in the beginning and 54.6MB in the end (delta: -9.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 09:11:11,771 INFO L158 Benchmark]: TraceAbstraction took 4960.98ms. Allocated memory is still 77.6MB. Free memory was 53.9MB in the beginning and 34.8MB in the end (delta: 19.0MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2022-12-14 09:11:11,771 INFO L158 Benchmark]: Witness Printer took 5.62ms. Allocated memory is still 77.6MB. Free memory was 34.8MB in the beginning and 34.5MB in the end (delta: 341.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:11:11,774 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 54.5MB. Free memory is still 33.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 390.39ms. Allocated memory is still 77.6MB. Free memory was 51.6MB in the beginning and 49.0MB in the end (delta: 2.6MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.49ms. Allocated memory is still 77.6MB. Free memory was 49.0MB in the beginning and 46.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.71ms. Allocated memory is still 77.6MB. Free memory was 46.9MB in the beginning and 45.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 361.31ms. Allocated memory is still 77.6MB. Free memory was 45.5MB in the beginning and 54.6MB in the end (delta: -9.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4960.98ms. Allocated memory is still 77.6MB. Free memory was 53.9MB in the beginning and 34.8MB in the end (delta: 19.0MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * Witness Printer took 5.62ms. Allocated memory is still 77.6MB. Free memory was 34.8MB in the beginning and 34.5MB in the end (delta: 341.6kB). 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: 4.0s, 74 PlacesBefore, 19 PlacesAfterwards, 72 TransitionsBefore, 15 TransitionsAfterwards, 368 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 74 TotalNumberOfCompositions, 638 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 466, independent: 413, independent conditional: 0, independent unconditional: 413, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 284, independent: 264, independent conditional: 0, independent unconditional: 264, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 284, independent: 259, independent conditional: 0, independent unconditional: 259, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 25, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 466, independent: 149, independent conditional: 0, independent unconditional: 149, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 284, unknown conditional: 0, unknown unconditional: 284] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, 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 glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={7:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND TRUE 1 t == 42 [L688] 1 glob1 = 1 [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(!(t == 1)) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=1, mutex1={3:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -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: 696]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 698]: 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, 94 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, 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, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 4 NumberOfCodeBlocks, 4 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 [2022-12-14 09:11:11,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac6111e-0203-4104-b2a6-fd4b688cf7fc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample