./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_43-thread_create_nr.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_28f985b0-8233-4a3f-957e-0316dd5f922f/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f985b0-8233-4a3f-957e-0316dd5f922f/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_28f985b0-8233-4a3f-957e-0316dd5f922f/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f985b0-8233-4a3f-957e-0316dd5f922f/bin/utaipan-I9t0OCRTmS/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_43-thread_create_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f985b0-8233-4a3f-957e-0316dd5f922f/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_28f985b0-8233-4a3f-957e-0316dd5f922f/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 4f10ff474b4a5b0ac51f5a2282c4b94cd510edf14cc1176b49d640deffa746e5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:02:34,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:02:34,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:02:34,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:02:34,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:02:34,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:02:34,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:02:34,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:02:34,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:02:34,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:02:34,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:02:34,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:02:34,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:02:34,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:02:34,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:02:34,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:02:34,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:02:34,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:02:34,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:02:34,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:02:34,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:02:34,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:02:34,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:02:34,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:02:34,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:02:34,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:02:34,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:02:34,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:02:34,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:02:34,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:02:34,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:02:34,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:02:34,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:02:34,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:02:34,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:02:34,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:02:34,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:02:34,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:02:34,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:02:34,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:02:34,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:02:34,311 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f985b0-8233-4a3f-957e-0316dd5f922f/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-19 08:02:34,333 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:02:34,334 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:02:34,334 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:02:34,335 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:02:34,335 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:02:34,336 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:02:34,336 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:02:34,336 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:02:34,337 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:02:34,337 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:02:34,337 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:02:34,338 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:02:34,338 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:02:34,338 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:02:34,339 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:02:34,339 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:02:34,339 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:02:34,340 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:02:34,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-19 08:02:34,341 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-19 08:02:34,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:02:34,341 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:02:34,342 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:02:34,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:02:34,342 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:02:34,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:02:34,343 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-19 08:02:34,343 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-19 08:02:34,344 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-19 08:02:34,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:02:34,344 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:02:34,345 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:02:34,345 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:02:34,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:02:34,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:02:34,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:02:34,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:02:34,346 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:02:34,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:02:34,347 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:02:34,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:02:34,348 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:02:34,348 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_28f985b0-8233-4a3f-957e-0316dd5f922f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f985b0-8233-4a3f-957e-0316dd5f922f/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f10ff474b4a5b0ac51f5a2282c4b94cd510edf14cc1176b49d640deffa746e5 [2022-11-19 08:02:34,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:02:34,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:02:34,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:02:34,681 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:02:34,682 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:02:34,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f985b0-8233-4a3f-957e-0316dd5f922f/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/goblint-regression/04-mutex_43-thread_create_nr.i [2022-11-19 08:02:34,757 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f985b0-8233-4a3f-957e-0316dd5f922f/bin/utaipan-I9t0OCRTmS/data/ab47c7134/ad7fd8d0726d4f2599c86ab784b1b4a4/FLAGc4d3e53cb [2022-11-19 08:02:35,321 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:02:35,322 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f985b0-8233-4a3f-957e-0316dd5f922f/sv-benchmarks/c/goblint-regression/04-mutex_43-thread_create_nr.i [2022-11-19 08:02:35,340 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f985b0-8233-4a3f-957e-0316dd5f922f/bin/utaipan-I9t0OCRTmS/data/ab47c7134/ad7fd8d0726d4f2599c86ab784b1b4a4/FLAGc4d3e53cb [2022-11-19 08:02:35,646 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f985b0-8233-4a3f-957e-0316dd5f922f/bin/utaipan-I9t0OCRTmS/data/ab47c7134/ad7fd8d0726d4f2599c86ab784b1b4a4 [2022-11-19 08:02:35,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:02:35,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:02:35,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:02:35,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:02:35,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:02:35,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:35" (1/1) ... [2022-11-19 08:02:35,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78972d6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:35, skipping insertion in model container [2022-11-19 08:02:35,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:35" (1/1) ... [2022-11-19 08:02:35,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:02:35,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:02:36,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:02:36,357 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:02:36,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:02:36,499 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:02:36,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:36 WrapperNode [2022-11-19 08:02:36,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:02:36,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:02:36,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:02:36,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:02:36,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:36" (1/1) ... [2022-11-19 08:02:36,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:36" (1/1) ... [2022-11-19 08:02:36,575 INFO L138 Inliner]: procedures = 262, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2022-11-19 08:02:36,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:02:36,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:02:36,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:02:36,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:02:36,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:36" (1/1) ... [2022-11-19 08:02:36,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:36" (1/1) ... [2022-11-19 08:02:36,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:36" (1/1) ... [2022-11-19 08:02:36,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:36" (1/1) ... [2022-11-19 08:02:36,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:36" (1/1) ... [2022-11-19 08:02:36,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:36" (1/1) ... [2022-11-19 08:02:36,618 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:36" (1/1) ... [2022-11-19 08:02:36,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:36" (1/1) ... [2022-11-19 08:02:36,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:02:36,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:02:36,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:02:36,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:02:36,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:36" (1/1) ... [2022-11-19 08:02:36,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:02:36,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f985b0-8233-4a3f-957e-0316dd5f922f/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:02:36,674 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f985b0-8233-4a3f-957e-0316dd5f922f/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:02:36,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f985b0-8233-4a3f-957e-0316dd5f922f/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:02:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:02:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:02:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:02:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-19 08:02:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:02:36,730 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-19 08:02:36,730 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-19 08:02:36,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:02:36,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:02:36,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:02:36,732 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 08:02:36,937 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:02:36,939 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:02:37,155 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:02:37,162 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:02:37,164 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 08:02:37,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:37 BoogieIcfgContainer [2022-11-19 08:02:37,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:02:37,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:02:37,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:02:37,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:02:37,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:02:35" (1/3) ... [2022-11-19 08:02:37,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13659908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:37, skipping insertion in model container [2022-11-19 08:02:37,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:36" (2/3) ... [2022-11-19 08:02:37,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13659908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:37, skipping insertion in model container [2022-11-19 08:02:37,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:37" (3/3) ... [2022-11-19 08:02:37,178 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_43-thread_create_nr.i [2022-11-19 08:02:37,200 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:02:37,200 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-19 08:02:37,200 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 08:02:37,243 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 08:02:37,281 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 08:02:37,298 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 58 transitions, 121 flow [2022-11-19 08:02:37,300 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 58 transitions, 121 flow [2022-11-19 08:02:37,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 58 transitions, 121 flow [2022-11-19 08:02:37,341 INFO L130 PetriNetUnfolder]: 0/57 cut-off events. [2022-11-19 08:02:37,342 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 08:02:37,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 57 events. 0/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-19 08:02:37,346 INFO L119 LiptonReduction]: Number of co-enabled transitions 196 [2022-11-19 08:02:40,094 INFO L134 LiptonReduction]: Checked pairs total: 124 [2022-11-19 08:02:40,094 INFO L136 LiptonReduction]: Total number of compositions: 58 [2022-11-19 08:02:40,105 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 12 places, 8 transitions, 21 flow [2022-11-19 08:02:40,119 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8 states, 5 states have (on average 1.6) internal successors, (8), 7 states have internal predecessors, (8), 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 08:02:40,145 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:02:40,158 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;@9594655, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:02:40,158 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-19 08:02:40,161 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 5 states have (on average 1.6) internal successors, (8), 7 states have internal predecessors, (8), 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 08:02:40,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-19 08:02:40,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:02:40,168 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-19 08:02:40,169 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2022-11-19 08:02:40,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:02:40,179 INFO L85 PathProgramCache]: Analyzing trace with hash 211, now seen corresponding path program 1 times [2022-11-19 08:02:40,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:02:40,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045525970] [2022-11-19 08:02:40,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:40,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:02:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:40,323 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 08:02:40,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:02:40,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045525970] [2022-11-19 08:02:40,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045525970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:02:40,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:02:40,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-19 08:02:40,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697458990] [2022-11-19 08:02:40,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:02:40,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:02:40,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:02:40,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:02:40,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:02:40,364 INFO L87 Difference]: Start difference. First operand has 8 states, 5 states have (on average 1.6) internal successors, (8), 7 states have internal predecessors, (8), 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 08:02:40,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:02:40,394 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2022-11-19 08:02:40,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:02:40,397 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 08:02:40,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:02:40,405 INFO L225 Difference]: With dead ends: 6 [2022-11-19 08:02:40,405 INFO L226 Difference]: Without dead ends: 6 [2022-11-19 08:02:40,406 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 08:02:40,412 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:02:40,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:02:40,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2022-11-19 08:02:40,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2022-11-19 08:02:40,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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 08:02:40,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2022-11-19 08:02:40,450 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 1 [2022-11-19 08:02:40,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:02:40,451 INFO L495 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2022-11-19 08:02:40,451 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 08:02:40,453 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2022-11-19 08:02:40,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-19 08:02:40,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:02:40,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-19 08:02:40,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:02:40,455 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2022-11-19 08:02:40,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:02:40,457 INFO L85 PathProgramCache]: Analyzing trace with hash 207752, now seen corresponding path program 1 times [2022-11-19 08:02:40,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:02:40,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065924609] [2022-11-19 08:02:40,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:40,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:02:40,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:40,670 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 08:02:40,671 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:02:40,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065924609] [2022-11-19 08:02:40,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065924609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:02:40,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:02:40,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:02:40,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527891008] [2022-11-19 08:02:40,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:02:40,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:02:40,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:02:40,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:02:40,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:02:40,675 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 08:02:40,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:02:40,688 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions. [2022-11-19 08:02:40,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:02:40,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-11-19 08:02:40,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:02:40,689 INFO L225 Difference]: With dead ends: 4 [2022-11-19 08:02:40,690 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 08:02:40,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:02:40,691 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:02:40,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 0 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:02:40,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 08:02:40,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 08:02:40,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 08:02:40,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 08:02:40,697 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2022-11-19 08:02:40,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:02:40,697 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 08:02:40,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 08:02:40,700 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 08:02:40,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 08:02:40,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 4 remaining) [2022-11-19 08:02:40,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 4 remaining) [2022-11-19 08:02:40,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 4 remaining) [2022-11-19 08:02:40,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-11-19 08:02:40,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:02:40,710 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-19 08:02:40,721 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 08:02:40,721 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:02:40,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:02:40 BasicIcfg [2022-11-19 08:02:40,727 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:02:40,728 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:02:40,729 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:02:40,729 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:02:40,730 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:37" (3/4) ... [2022-11-19 08:02:40,734 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 08:02:40,742 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-19 08:02:40,748 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-19 08:02:40,748 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-19 08:02:40,748 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 08:02:40,784 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f985b0-8233-4a3f-957e-0316dd5f922f/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:02:40,791 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:02:40,792 INFO L158 Benchmark]: Toolchain (without parser) took 5142.74ms. Allocated memory was 113.2MB in the beginning and 138.4MB in the end (delta: 25.2MB). Free memory was 73.7MB in the beginning and 58.0MB in the end (delta: 15.7MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2022-11-19 08:02:40,793 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 91.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:02:40,797 INFO L158 Benchmark]: CACSL2BoogieTranslator took 841.28ms. Allocated memory is still 113.2MB. Free memory was 73.5MB in the beginning and 70.7MB in the end (delta: 2.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 08:02:40,797 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.62ms. Allocated memory is still 113.2MB. Free memory was 70.7MB in the beginning and 68.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:02:40,798 INFO L158 Benchmark]: Boogie Preprocessor took 56.32ms. Allocated memory is still 113.2MB. Free memory was 68.6MB in the beginning and 67.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:02:40,798 INFO L158 Benchmark]: RCFGBuilder took 534.87ms. Allocated memory is still 113.2MB. Free memory was 67.0MB in the beginning and 54.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 08:02:40,799 INFO L158 Benchmark]: TraceAbstraction took 3557.31ms. Allocated memory was 113.2MB in the beginning and 138.4MB in the end (delta: 25.2MB). Free memory was 54.4MB in the beginning and 61.2MB in the end (delta: -6.8MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2022-11-19 08:02:40,799 INFO L158 Benchmark]: Witness Printer took 63.59ms. Allocated memory is still 138.4MB. Free memory was 61.2MB in the beginning and 58.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 08:02:40,801 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 91.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 841.28ms. Allocated memory is still 113.2MB. Free memory was 73.5MB in the beginning and 70.7MB in the end (delta: 2.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.62ms. Allocated memory is still 113.2MB. Free memory was 70.7MB in the beginning and 68.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.32ms. Allocated memory is still 113.2MB. Free memory was 68.6MB in the beginning and 67.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 534.87ms. Allocated memory is still 113.2MB. Free memory was 67.0MB in the beginning and 54.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3557.31ms. Allocated memory was 113.2MB in the beginning and 138.4MB in the end (delta: 25.2MB). Free memory was 54.4MB in the beginning and 61.2MB in the end (delta: -6.8MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * Witness Printer took 63.59ms. Allocated memory is still 138.4MB. Free memory was 61.2MB in the beginning and 58.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 62 PlacesBefore, 12 PlacesAfterwards, 58 TransitionsBefore, 8 TransitionsAfterwards, 196 CoEnabledTransitionPairs, 6 FixpointIterations, 38 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 58 TotalNumberOfCompositions, 124 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 124, independent: 124, independent conditional: 0, independent unconditional: 124, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 122, independent: 122, independent conditional: 0, independent unconditional: 122, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 122, independent: 122, independent conditional: 0, independent unconditional: 122, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 124, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 122, unknown conditional: 0, unknown unconditional: 122] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 927]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 68 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-19 08:02:40,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f985b0-8233-4a3f-957e-0316dd5f922f/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 Writing output log to file Ultimate.log Result: TRUE