./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 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/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_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS --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-8393723 [2022-11-19 06:57:56,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:57:56,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:57:57,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:57:57,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:57:57,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:57:57,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:57:57,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:57:57,042 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:57:57,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:57:57,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:57:57,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:57:57,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:57:57,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:57:57,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:57:57,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:57:57,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:57:57,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:57:57,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:57:57,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:57:57,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:57:57,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:57:57,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:57:57,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:57:57,082 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:57:57,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:57:57,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:57:57,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:57:57,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:57:57,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:57:57,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:57:57,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:57:57,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:57:57,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:57:57,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:57:57,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:57:57,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:57:57,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:57:57,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:57:57,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:57:57,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:57:57,099 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-19 06:57:57,144 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:57:57,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:57:57,145 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:57:57,146 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:57:57,146 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:57:57,147 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:57:57,147 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:57:57,147 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:57:57,147 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:57:57,148 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:57:57,149 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:57:57,149 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:57:57,149 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:57:57,150 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:57:57,150 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:57:57,150 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:57:57,150 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:57:57,151 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:57:57,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-19 06:57:57,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-19 06:57:57,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:57:57,153 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:57:57,154 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 06:57:57,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:57:57,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:57:57,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:57:57,155 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-19 06:57:57,155 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-19 06:57:57,155 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-19 06:57:57,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:57:57,156 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 06:57:57,156 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:57:57,156 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:57:57,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:57:57,157 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:57:57,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:57:57,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:57:57,157 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:57:57,158 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:57:57,158 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:57:57,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:57:57,158 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:57:57,159 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_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 [2022-11-19 06:57:57,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:57:57,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:57:57,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:57:57,491 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:57:57,493 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:57:57,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2022-11-19 06:57:57,576 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/data/5afd9c71a/7704672c2061456ca587b68cee600fc5/FLAG080848d98 [2022-11-19 06:57:58,294 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:57:58,295 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2022-11-19 06:57:58,310 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/data/5afd9c71a/7704672c2061456ca587b68cee600fc5/FLAG080848d98 [2022-11-19 06:57:58,530 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/data/5afd9c71a/7704672c2061456ca587b68cee600fc5 [2022-11-19 06:57:58,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:57:58,535 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:57:58,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:57:58,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:57:58,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:57:58,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:57:58" (1/1) ... [2022-11-19 06:57:58,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f4c9f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:58, skipping insertion in model container [2022-11-19 06:57:58,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:57:58" (1/1) ... [2022-11-19 06:57:58,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:57:58,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:57:58,931 WARN L234 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_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2022-11-19 06:57:59,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:57:59,237 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:57:59,257 WARN L234 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_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2022-11-19 06:57:59,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:57:59,362 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:57:59,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:59 WrapperNode [2022-11-19 06:57:59,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:57:59,364 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:57:59,364 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:57:59,364 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:57:59,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:59" (1/1) ... [2022-11-19 06:57:59,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:59" (1/1) ... [2022-11-19 06:57:59,431 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-11-19 06:57:59,431 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:57:59,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:57:59,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:57:59,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:57:59,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:59" (1/1) ... [2022-11-19 06:57:59,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:59" (1/1) ... [2022-11-19 06:57:59,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:59" (1/1) ... [2022-11-19 06:57:59,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:59" (1/1) ... [2022-11-19 06:57:59,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:59" (1/1) ... [2022-11-19 06:57:59,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:59" (1/1) ... [2022-11-19 06:57:59,472 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:59" (1/1) ... [2022-11-19 06:57:59,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:59" (1/1) ... [2022-11-19 06:57:59,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:57:59,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:57:59,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:57:59,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:57:59,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:59" (1/1) ... [2022-11-19 06:57:59,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:57:59,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:57:59,520 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:57:59,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:57:59,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:57:59,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:57:59,576 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-19 06:57:59,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:57:59,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:57:59,576 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-19 06:57:59,577 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-19 06:57:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:57:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:57:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:57:59,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:57:59,579 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 06:57:59,797 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:57:59,799 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:57:59,980 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:57:59,987 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:57:59,987 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 06:57:59,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:57:59 BoogieIcfgContainer [2022-11-19 06:57:59,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:57:59,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:57:59,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:58:00,002 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:58:00,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:57:58" (1/3) ... [2022-11-19 06:58:00,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3702a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:58:00, skipping insertion in model container [2022-11-19 06:58:00,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:59" (2/3) ... [2022-11-19 06:58:00,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3702a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:58:00, skipping insertion in model container [2022-11-19 06:58:00,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:57:59" (3/3) ... [2022-11-19 06:58:00,020 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_neg.i [2022-11-19 06:58:00,040 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:58:00,055 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-19 06:58:00,055 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 06:58:00,152 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-19 06:58:00,218 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 06:58:00,237 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 72 transitions, 152 flow [2022-11-19 06:58:00,242 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 72 transitions, 152 flow [2022-11-19 06:58:00,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 72 transitions, 152 flow [2022-11-19 06:58:00,312 INFO L130 PetriNetUnfolder]: 2/71 cut-off events. [2022-11-19 06:58:00,317 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-19 06:58:00,322 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. [2022-11-19 06:58:00,324 INFO L119 LiptonReduction]: Number of co-enabled transitions 384 [2022-11-19 06:58:03,992 INFO L134 LiptonReduction]: Checked pairs total: 674 [2022-11-19 06:58:03,993 INFO L136 LiptonReduction]: Total number of compositions: 78 [2022-11-19 06:58:04,004 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 15 transitions, 38 flow [2022-11-19 06:58:04,021 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) [2022-11-19 06:58:04,047 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:58:04,057 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;@5dbd5f2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:58:04,058 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-19 06:58:04,060 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) [2022-11-19 06:58:04,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-19 06:58:04,068 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:04,069 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-19 06:58:04,069 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 06:58:04,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:04,081 INFO L85 PathProgramCache]: Analyzing trace with hash 287, now seen corresponding path program 1 times [2022-11-19 06:58:04,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:04,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179240320] [2022-11-19 06:58:04,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:04,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:04,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:04,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:04,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179240320] [2022-11-19 06:58:04,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179240320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:04,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:04,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-19 06:58:04,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559544957] [2022-11-19 06:58:04,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:04,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 06:58:04,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:04,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 06:58:04,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:58:04,287 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) [2022-11-19 06:58:04,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:04,332 INFO L93 Difference]: Finished difference Result 24 states and 35 transitions. [2022-11-19 06:58:04,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 06:58:04,335 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-19 06:58:04,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:04,345 INFO L225 Difference]: With dead ends: 24 [2022-11-19 06:58:04,346 INFO L226 Difference]: Without dead ends: 24 [2022-11-19 06:58:04,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:58:04,351 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 [2022-11-19 06:58:04,356 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] [2022-11-19 06:58:04,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-19 06:58:04,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-19 06:58:04,385 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) [2022-11-19 06:58:04,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 35 transitions. [2022-11-19 06:58:04,388 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 35 transitions. Word has length 1 [2022-11-19 06:58:04,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:04,388 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 35 transitions. [2022-11-19 06:58:04,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:58:04,390 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2022-11-19 06:58:04,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-19 06:58:04,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:04,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-19 06:58:04,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:58:04,392 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)] === [2022-11-19 06:58:04,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:04,393 INFO L85 PathProgramCache]: Analyzing trace with hash 280621, now seen corresponding path program 1 times [2022-11-19 06:58:04,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:04,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745164194] [2022-11-19 06:58:04,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:04,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:04,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:58:04,477 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 06:58:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:58:04,551 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 06:58:04,552 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 06:58:04,557 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2022-11-19 06:58:04,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2022-11-19 06:58:04,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2022-11-19 06:58:04,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2022-11-19 06:58:04,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2022-11-19 06:58:04,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2022-11-19 06:58:04,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-11-19 06:58:04,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2022-11-19 06:58:04,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:58:04,572 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-19 06:58:04,578 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 06:58:04,578 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 06:58:04,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:58:04 BasicIcfg [2022-11-19 06:58:04,603 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 06:58:04,604 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 06:58:04,604 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 06:58:04,605 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 06:58:04,605 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:57:59" (3/4) ... [2022-11-19 06:58:04,608 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 06:58:04,609 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 06:58:04,613 INFO L158 Benchmark]: Toolchain (without parser) took 6074.73ms. Allocated memory was 115.3MB in the beginning and 151.0MB in the end (delta: 35.7MB). Free memory was 78.7MB in the beginning and 56.8MB in the end (delta: 21.9MB). Peak memory consumption was 56.0MB. Max. memory is 16.1GB. [2022-11-19 06:58:04,613 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory was 87.8MB in the beginning and 87.7MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:58:04,614 INFO L158 Benchmark]: CACSL2BoogieTranslator took 825.01ms. Allocated memory is still 115.3MB. Free memory was 78.7MB in the beginning and 80.0MB in the end (delta: -1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 06:58:04,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.00ms. Allocated memory is still 115.3MB. Free memory was 80.0MB in the beginning and 78.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:58:04,614 INFO L158 Benchmark]: Boogie Preprocessor took 46.26ms. Allocated memory is still 115.3MB. Free memory was 78.4MB in the beginning and 77.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:58:04,615 INFO L158 Benchmark]: RCFGBuilder took 510.77ms. Allocated memory is still 115.3MB. Free memory was 77.0MB in the beginning and 63.8MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 06:58:04,620 INFO L158 Benchmark]: TraceAbstraction took 4609.94ms. Allocated memory was 115.3MB in the beginning and 151.0MB in the end (delta: 35.7MB). Free memory was 63.2MB in the beginning and 56.8MB in the end (delta: 6.4MB). Peak memory consumption was 43.9MB. Max. memory is 16.1GB. [2022-11-19 06:58:04,620 INFO L158 Benchmark]: Witness Printer took 4.61ms. Allocated memory is still 151.0MB. Free memory is still 56.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:58:04,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory was 87.8MB in the beginning and 87.7MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 825.01ms. Allocated memory is still 115.3MB. Free memory was 78.7MB in the beginning and 80.0MB in the end (delta: -1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.00ms. Allocated memory is still 115.3MB. Free memory was 80.0MB in the beginning and 78.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.26ms. Allocated memory is still 115.3MB. Free memory was 78.4MB in the beginning and 77.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 510.77ms. Allocated memory is still 115.3MB. Free memory was 77.0MB in the beginning and 63.8MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4609.94ms. Allocated memory was 115.3MB in the beginning and 151.0MB in the end (delta: 35.7MB). Free memory was 63.2MB in the beginning and 56.8MB in the end (delta: 6.4MB). Peak memory consumption was 43.9MB. Max. memory is 16.1GB. * Witness Printer took 4.61ms. Allocated memory is still 151.0MB. Free memory is still 56.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 74 PlacesBefore, 19 PlacesAfterwards, 72 TransitionsBefore, 15 TransitionsAfterwards, 384 CoEnabledTransitionPairs, 6 FixpointIterations, 42 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 78 TotalNumberOfCompositions, 674 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 528, independent: 475, independent conditional: 0, independent unconditional: 475, 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: 309, independent: 281, independent conditional: 0, independent unconditional: 281, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 309, independent: 275, independent conditional: 0, independent unconditional: 275, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 34, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 202, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 185, dependent conditional: 0, dependent unconditional: 185, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 528, independent: 194, independent conditional: 0, independent unconditional: 194, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 309, unknown conditional: 0, unknown unconditional: 309] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, 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: [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 int glob1 = 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: 4.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, 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, 0.1s 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 [2022-11-19 06:58:04,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/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_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS --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-8393723 [2022-11-19 06:58:07,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:58:07,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:58:07,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:58:07,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:58:07,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:58:07,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:58:07,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:58:07,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:58:07,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:58:07,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:58:07,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:58:07,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:58:07,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:58:07,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:58:07,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:58:07,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:58:07,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:58:07,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:58:07,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:58:07,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:58:07,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:58:07,133 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:58:07,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:58:07,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:58:07,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:58:07,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:58:07,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:58:07,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:58:07,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:58:07,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:58:07,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:58:07,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:58:07,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:58:07,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:58:07,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:58:07,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:58:07,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:58:07,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:58:07,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:58:07,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:58:07,150 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-19 06:58:07,208 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:58:07,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:58:07,210 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:58:07,210 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:58:07,211 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:58:07,212 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:58:07,212 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:58:07,212 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:58:07,212 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:58:07,213 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:58:07,214 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:58:07,214 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:58:07,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-19 06:58:07,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-19 06:58:07,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:58:07,216 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:58:07,217 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 06:58:07,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:58:07,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:58:07,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:58:07,217 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-19 06:58:07,218 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-19 06:58:07,218 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-19 06:58:07,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:58:07,218 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 06:58:07,219 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 06:58:07,219 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 06:58:07,219 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:58:07,219 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:58:07,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:58:07,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 06:58:07,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:58:07,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:58:07,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:58:07,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:58:07,221 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 06:58:07,222 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 06:58:07,222 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:58:07,222 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 06:58:07,222 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_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 [2022-11-19 06:58:07,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:58:07,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:58:07,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:58:07,646 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:58:07,647 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:58:07,649 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2022-11-19 06:58:07,723 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/data/0425065fe/2daacf695194415a9886384bbfa26fbe/FLAG8de61deb1 [2022-11-19 06:58:08,372 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:58:08,372 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2022-11-19 06:58:08,392 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/data/0425065fe/2daacf695194415a9886384bbfa26fbe/FLAG8de61deb1 [2022-11-19 06:58:08,655 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/data/0425065fe/2daacf695194415a9886384bbfa26fbe [2022-11-19 06:58:08,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:58:08,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:58:08,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:58:08,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:58:08,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:58:08,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:58:08" (1/1) ... [2022-11-19 06:58:08,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32ff69d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:08, skipping insertion in model container [2022-11-19 06:58:08,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:58:08" (1/1) ... [2022-11-19 06:58:08,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:58:08,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:58:09,011 WARN L234 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_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2022-11-19 06:58:09,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:58:09,296 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:58:09,318 WARN L234 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_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2022-11-19 06:58:09,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:58:09,433 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:58:09,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:09 WrapperNode [2022-11-19 06:58:09,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:58:09,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:58:09,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:58:09,436 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:58:09,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:09" (1/1) ... [2022-11-19 06:58:09,472 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:09" (1/1) ... [2022-11-19 06:58:09,502 INFO L138 Inliner]: procedures = 167, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-11-19 06:58:09,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:58:09,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:58:09,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:58:09,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:58:09,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:09" (1/1) ... [2022-11-19 06:58:09,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:09" (1/1) ... [2022-11-19 06:58:09,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:09" (1/1) ... [2022-11-19 06:58:09,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:09" (1/1) ... [2022-11-19 06:58:09,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:09" (1/1) ... [2022-11-19 06:58:09,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:09" (1/1) ... [2022-11-19 06:58:09,550 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:09" (1/1) ... [2022-11-19 06:58:09,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:09" (1/1) ... [2022-11-19 06:58:09,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:58:09,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:58:09,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:58:09,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:58:09,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:09" (1/1) ... [2022-11-19 06:58:09,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:58:09,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:58:09,612 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:58:09,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:58:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-19 06:58:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-19 06:58:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:58:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:58:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-19 06:58:09,675 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-19 06:58:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:58:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-19 06:58:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 06:58:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-19 06:58:09,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:58:09,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:58:09,677 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 06:58:09,873 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:58:09,876 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:58:10,154 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:58:10,161 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:58:10,161 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 06:58:10,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:58:10 BoogieIcfgContainer [2022-11-19 06:58:10,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:58:10,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:58:10,166 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:58:10,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:58:10,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:58:08" (1/3) ... [2022-11-19 06:58:10,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cdabc78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:58:10, skipping insertion in model container [2022-11-19 06:58:10,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:09" (2/3) ... [2022-11-19 06:58:10,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cdabc78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:58:10, skipping insertion in model container [2022-11-19 06:58:10,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:58:10" (3/3) ... [2022-11-19 06:58:10,173 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_neg.i [2022-11-19 06:58:10,192 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:58:10,193 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-19 06:58:10,193 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 06:58:10,281 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-19 06:58:10,331 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 06:58:10,349 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 72 transitions, 152 flow [2022-11-19 06:58:10,352 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 72 transitions, 152 flow [2022-11-19 06:58:10,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 72 transitions, 152 flow [2022-11-19 06:58:10,403 INFO L130 PetriNetUnfolder]: 2/71 cut-off events. [2022-11-19 06:58:10,404 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-19 06:58:10,408 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. [2022-11-19 06:58:10,409 INFO L119 LiptonReduction]: Number of co-enabled transitions 368 [2022-11-19 06:58:16,900 INFO L134 LiptonReduction]: Checked pairs total: 653 [2022-11-19 06:58:16,901 INFO L136 LiptonReduction]: Total number of compositions: 73 [2022-11-19 06:58:16,910 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 15 transitions, 38 flow [2022-11-19 06:58:16,923 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) [2022-11-19 06:58:16,951 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:58:16,958 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;@2a2cf6b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:58:16,958 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-19 06:58:16,961 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) [2022-11-19 06:58:16,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-19 06:58:16,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:16,967 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-19 06:58:16,968 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 06:58:16,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:16,979 INFO L85 PathProgramCache]: Analyzing trace with hash 279, now seen corresponding path program 1 times [2022-11-19 06:58:16,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:58:16,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017295990] [2022-11-19 06:58:16,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:16,995 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:58:16,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:58:17,000 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 06:58:17,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 06:58:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:17,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 06:58:17,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:58:17,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:17,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:58:17,081 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:58:17,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017295990] [2022-11-19 06:58:17,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1017295990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:17,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:17,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-19 06:58:17,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845135428] [2022-11-19 06:58:17,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:17,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 06:58:17,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:58:17,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 06:58:17,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:58:17,120 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) [2022-11-19 06:58:17,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:17,199 INFO L93 Difference]: Finished difference Result 24 states and 35 transitions. [2022-11-19 06:58:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 06:58:17,203 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-19 06:58:17,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:17,212 INFO L225 Difference]: With dead ends: 24 [2022-11-19 06:58:17,227 INFO L226 Difference]: Without dead ends: 24 [2022-11-19 06:58:17,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:58:17,232 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:17,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:58:17,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-19 06:58:17,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-19 06:58:17,306 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) [2022-11-19 06:58:17,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 35 transitions. [2022-11-19 06:58:17,308 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 35 transitions. Word has length 1 [2022-11-19 06:58:17,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:17,309 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 35 transitions. [2022-11-19 06:58:17,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:58:17,309 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2022-11-19 06:58:17,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-19 06:58:17,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:17,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-19 06:58:17,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/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)] Ended with exit code 0 [2022-11-19 06:58:17,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:58:17,535 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)] === [2022-11-19 06:58:17,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:17,536 INFO L85 PathProgramCache]: Analyzing trace with hash 275779, now seen corresponding path program 1 times [2022-11-19 06:58:17,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:58:17,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [235588464] [2022-11-19 06:58:17,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:17,537 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:58:17,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:58:17,539 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 06:58:17,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 06:58:17,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:58:17,626 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 06:58:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:58:17,700 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-19 06:58:17,700 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 06:58:17,702 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2022-11-19 06:58:17,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2022-11-19 06:58:17,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2022-11-19 06:58:17,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2022-11-19 06:58:17,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2022-11-19 06:58:17,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2022-11-19 06:58:17,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-11-19 06:58:17,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2022-11-19 06:58:17,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-19 06:58:17,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:58:17,922 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-19 06:58:17,928 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 06:58:17,928 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 06:58:17,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:58:17 BasicIcfg [2022-11-19 06:58:17,945 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 06:58:17,946 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 06:58:17,946 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 06:58:17,947 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 06:58:17,947 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:58:10" (3/4) ... [2022-11-19 06:58:17,951 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 06:58:17,952 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 06:58:17,954 INFO L158 Benchmark]: Toolchain (without parser) took 9291.71ms. Allocated memory was 69.2MB in the beginning and 102.8MB in the end (delta: 33.6MB). Free memory was 48.1MB in the beginning and 57.8MB in the end (delta: -9.7MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2022-11-19 06:58:17,958 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 69.2MB. Free memory was 50.0MB in the beginning and 49.9MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:58:17,959 INFO L158 Benchmark]: CACSL2BoogieTranslator took 769.55ms. Allocated memory is still 69.2MB. Free memory was 47.9MB in the beginning and 43.3MB in the end (delta: 4.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 06:58:17,960 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.39ms. Allocated memory is still 69.2MB. Free memory was 43.3MB in the beginning and 41.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:58:17,961 INFO L158 Benchmark]: Boogie Preprocessor took 60.45ms. Allocated memory is still 69.2MB. Free memory was 41.2MB in the beginning and 39.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:58:17,965 INFO L158 Benchmark]: RCFGBuilder took 598.92ms. Allocated memory is still 69.2MB. Free memory was 39.8MB in the beginning and 46.8MB in the end (delta: -7.0MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2022-11-19 06:58:17,966 INFO L158 Benchmark]: TraceAbstraction took 7779.72ms. Allocated memory was 69.2MB in the beginning and 102.8MB in the end (delta: 33.6MB). Free memory was 46.1MB in the beginning and 57.8MB in the end (delta: -11.7MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2022-11-19 06:58:17,970 INFO L158 Benchmark]: Witness Printer took 5.57ms. Allocated memory is still 102.8MB. Free memory is still 57.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:58:17,973 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 69.2MB. Free memory was 50.0MB in the beginning and 49.9MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 769.55ms. Allocated memory is still 69.2MB. Free memory was 47.9MB in the beginning and 43.3MB in the end (delta: 4.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.39ms. Allocated memory is still 69.2MB. Free memory was 43.3MB in the beginning and 41.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.45ms. Allocated memory is still 69.2MB. Free memory was 41.2MB in the beginning and 39.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 598.92ms. Allocated memory is still 69.2MB. Free memory was 39.8MB in the beginning and 46.8MB in the end (delta: -7.0MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * TraceAbstraction took 7779.72ms. Allocated memory was 69.2MB in the beginning and 102.8MB in the end (delta: 33.6MB). Free memory was 46.1MB in the beginning and 57.8MB in the end (delta: -11.7MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. * Witness Printer took 5.57ms. Allocated memory is still 102.8MB. Free memory is still 57.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.5s, 74 PlacesBefore, 19 PlacesAfterwards, 72 TransitionsBefore, 15 TransitionsAfterwards, 368 CoEnabledTransitionPairs, 6 FixpointIterations, 38 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 73 TotalNumberOfCompositions, 653 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 487, independent: 435, independent conditional: 0, independent unconditional: 435, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 293, independent: 272, independent conditional: 0, independent unconditional: 272, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 293, independent: 266, independent conditional: 0, independent unconditional: 266, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 27, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 231, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 200, dependent conditional: 0, dependent unconditional: 200, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 487, independent: 163, independent conditional: 0, independent unconditional: 163, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 293, unknown conditional: 0, unknown unconditional: 293] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, 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: [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 int glob1 = 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))=0] [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: 7.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s 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 [2022-11-19 06:58:18,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264f8de4-ba22-46ad-b3da-6a8d8b5632e1/bin/utaipan-I9t0OCRTmS/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