./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8c9c88-6f51-4c39-a6c1-cccf8199d7da/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8c9c88-6f51-4c39-a6c1-cccf8199d7da/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8c9c88-6f51-4c39-a6c1-cccf8199d7da/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8c9c88-6f51-4c39-a6c1-cccf8199d7da/bin/utaipan-g80aRyZoba/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8c9c88-6f51-4c39-a6c1-cccf8199d7da/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8c9c88-6f51-4c39-a6c1-cccf8199d7da/bin/utaipan-g80aRyZoba --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 c983783f5358911c3fbbb6a10a3bc1f70631f1803357161b1c0bc876f490a9b5 --- 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-b5237d8 [2022-11-22 02:30:29,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:30:29,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:30:29,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:30:29,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:30:29,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:30:29,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:30:29,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:30:29,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:30:29,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:30:29,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:30:29,318 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:30:29,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:30:29,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:30:29,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:30:29,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:30:29,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:30:29,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:30:29,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:30:29,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:30:29,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:30:29,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:30:29,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:30:29,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:30:29,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:30:29,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:30:29,345 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:30:29,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:30:29,346 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:30:29,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:30:29,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:30:29,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:30:29,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:30:29,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:30:29,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:30:29,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:30:29,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:30:29,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:30:29,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:30:29,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:30:29,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:30:29,355 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8c9c88-6f51-4c39-a6c1-cccf8199d7da/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-22 02:30:29,381 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:30:29,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:30:29,381 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:30:29,381 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:30:29,382 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:30:29,382 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:30:29,382 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:30:29,383 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:30:29,383 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:30:29,383 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:30:29,383 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:30:29,383 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:30:29,384 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:30:29,384 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:30:29,384 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:30:29,384 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:30:29,384 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:30:29,384 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:30:29,385 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-22 02:30:29,385 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-22 02:30:29,386 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:30:29,386 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:30:29,386 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:30:29,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:30:29,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:30:29,387 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:30:29,387 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-22 02:30:29,387 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-22 02:30:29,387 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-22 02:30:29,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:30:29,388 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 02:30:29,388 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:30:29,388 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:30:29,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:30:29,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:30:29,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:30:29,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:30:29,389 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:30:29,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:30:29,389 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:30:29,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:30:29,390 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:30:29,390 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_5e8c9c88-6f51-4c39-a6c1-cccf8199d7da/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8c9c88-6f51-4c39-a6c1-cccf8199d7da/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c983783f5358911c3fbbb6a10a3bc1f70631f1803357161b1c0bc876f490a9b5 [2022-11-22 02:30:29,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:30:29,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:30:29,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:30:29,661 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:30:29,661 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:30:29,663 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8c9c88-6f51-4c39-a6c1-cccf8199d7da/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_true.i [2022-11-22 02:30:32,840 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:30:33,120 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:30:33,126 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8c9c88-6f51-4c39-a6c1-cccf8199d7da/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_true.i [2022-11-22 02:30:33,144 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8c9c88-6f51-4c39-a6c1-cccf8199d7da/bin/utaipan-g80aRyZoba/data/5f8da525b/882a9cc40f584f1eabb249094de5a3cc/FLAG178d24be5 [2022-11-22 02:30:33,159 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8c9c88-6f51-4c39-a6c1-cccf8199d7da/bin/utaipan-g80aRyZoba/data/5f8da525b/882a9cc40f584f1eabb249094de5a3cc [2022-11-22 02:30:33,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:30:33,164 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:30:33,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:30:33,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:30:33,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:30:33,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:30:33" (1/1) ... [2022-11-22 02:30:33,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44f5d69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:33, skipping insertion in model container [2022-11-22 02:30:33,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:30:33" (1/1) ... [2022-11-22 02:30:33,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:30:33,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:30:33,386 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8c9c88-6f51-4c39-a6c1-cccf8199d7da/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_true.i[1094,1107] [2022-11-22 02:30:33,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:30:33,561 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:30:33,575 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8c9c88-6f51-4c39-a6c1-cccf8199d7da/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_true.i[1094,1107] [2022-11-22 02:30:33,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:30:33,639 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:30:33,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:33 WrapperNode [2022-11-22 02:30:33,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:30:33,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:30:33,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:30:33,642 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:30:33,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:33" (1/1) ... [2022-11-22 02:30:33,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:33" (1/1) ... [2022-11-22 02:30:33,685 INFO L138 Inliner]: procedures = 162, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2022-11-22 02:30:33,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:30:33,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:30:33,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:30:33,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:30:33,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:33" (1/1) ... [2022-11-22 02:30:33,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:33" (1/1) ... [2022-11-22 02:30:33,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:33" (1/1) ... [2022-11-22 02:30:33,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:33" (1/1) ... [2022-11-22 02:30:33,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:33" (1/1) ... [2022-11-22 02:30:33,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:33" (1/1) ... [2022-11-22 02:30:33,709 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:33" (1/1) ... [2022-11-22 02:30:33,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:33" (1/1) ... [2022-11-22 02:30:33,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:30:33,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:30:33,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:30:33,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:30:33,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:33" (1/1) ... [2022-11-22 02:30:33,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:30:33,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8c9c88-6f51-4c39-a6c1-cccf8199d7da/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:30:33,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8c9c88-6f51-4c39-a6c1-cccf8199d7da/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:30:33,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8c9c88-6f51-4c39-a6c1-cccf8199d7da/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:30:33,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:30:33,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:30:33,805 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 02:30:33,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:30:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:30:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-22 02:30:33,806 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-22 02:30:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:30:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:30:33,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:30:33,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:30:33,809 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 02:30:34,027 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:30:34,029 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:30:34,256 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:30:34,264 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:30:34,264 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 02:30:34,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:30:34 BoogieIcfgContainer [2022-11-22 02:30:34,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:30:34,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:30:34,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:30:34,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:30:34,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:30:33" (1/3) ... [2022-11-22 02:30:34,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e96e5bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:30:34, skipping insertion in model container [2022-11-22 02:30:34,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:33" (2/3) ... [2022-11-22 02:30:34,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e96e5bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:30:34, skipping insertion in model container [2022-11-22 02:30:34,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:30:34" (3/3) ... [2022-11-22 02:30:34,278 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_true.i [2022-11-22 02:30:34,304 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:30:34,305 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-22 02:30:34,305 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 02:30:34,371 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-22 02:30:34,410 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:30:34,449 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 89 transitions, 186 flow [2022-11-22 02:30:34,455 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 89 transitions, 186 flow [2022-11-22 02:30:34,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 89 transitions, 186 flow [2022-11-22 02:30:34,535 INFO L130 PetriNetUnfolder]: 2/88 cut-off events. [2022-11-22 02:30:34,536 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-22 02:30:34,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 88 events. 2/88 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2022-11-22 02:30:34,547 INFO L119 LiptonReduction]: Number of co-enabled transitions 384 [2022-11-22 02:30:38,867 INFO L134 LiptonReduction]: Checked pairs total: 1340 [2022-11-22 02:30:38,867 INFO L136 LiptonReduction]: Total number of compositions: 96 [2022-11-22 02:30:38,876 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 21 transitions, 50 flow [2022-11-22 02:30:38,890 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 47 states, 38 states have (on average 2.0789473684210527) internal successors, (79), 46 states have internal predecessors, (79), 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) [2022-11-22 02:30:38,908 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:30:38,915 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;@48288997, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:30:38,915 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-11-22 02:30:38,917 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 38 states have (on average 2.0789473684210527) internal successors, (79), 46 states have internal predecessors, (79), 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) [2022-11-22 02:30:38,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-22 02:30:38,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:30:38,923 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-22 02:30:38,924 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2022-11-22 02:30:38,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:30:38,929 INFO L85 PathProgramCache]: Analyzing trace with hash 336, now seen corresponding path program 1 times [2022-11-22 02:30:38,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:30:38,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231113214] [2022-11-22 02:30:38,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:30:38,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:30:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:30:39,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:30:39,050 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:30:39,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231113214] [2022-11-22 02:30:39,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231113214] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:30:39,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:30:39,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-22 02:30:39,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646798636] [2022-11-22 02:30:39,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:30:39,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 02:30:39,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:30:39,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 02:30:39,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:30:39,083 INFO L87 Difference]: Start difference. First operand has 47 states, 38 states have (on average 2.0789473684210527) internal successors, (79), 46 states have internal predecessors, (79), 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) [2022-11-22 02:30:39,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:30:39,134 INFO L93 Difference]: Finished difference Result 44 states and 71 transitions. [2022-11-22 02:30:39,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 02:30:39,137 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 [2022-11-22 02:30:39,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:30:39,145 INFO L225 Difference]: With dead ends: 44 [2022-11-22 02:30:39,146 INFO L226 Difference]: Without dead ends: 44 [2022-11-22 02:30:39,146 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 [2022-11-22 02:30:39,150 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:30:39,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:30:39,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-22 02:30:39,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-22 02:30:39,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 38 states have (on average 1.868421052631579) internal successors, (71), 43 states have internal predecessors, (71), 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) [2022-11-22 02:30:39,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 71 transitions. [2022-11-22 02:30:39,187 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 71 transitions. Word has length 1 [2022-11-22 02:30:39,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:30:39,188 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 71 transitions. [2022-11-22 02:30:39,188 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) [2022-11-22 02:30:39,188 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 71 transitions. [2022-11-22 02:30:39,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 02:30:39,189 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:30:39,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 02:30:39,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:30:39,190 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2022-11-22 02:30:39,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:30:39,190 INFO L85 PathProgramCache]: Analyzing trace with hash 10282857, now seen corresponding path program 1 times [2022-11-22 02:30:39,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:30:39,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583348151] [2022-11-22 02:30:39,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:30:39,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:30:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:30:39,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:30:39,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:30:39,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583348151] [2022-11-22 02:30:39,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583348151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:30:39,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:30:39,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:30:39,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811555765] [2022-11-22 02:30:39,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:30:39,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:30:39,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:30:39,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:30:39,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:30:39,415 INFO L87 Difference]: Start difference. First operand 44 states and 71 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-22 02:30:39,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:30:39,449 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2022-11-22 02:30:39,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:30:39,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-11-22 02:30:39,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:30:39,453 INFO L225 Difference]: With dead ends: 36 [2022-11-22 02:30:39,453 INFO L226 Difference]: Without dead ends: 36 [2022-11-22 02:30:39,455 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 [2022-11-22 02:30:39,456 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:30:39,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:30:39,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-22 02:30:39,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-11-22 02:30:39,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 32 states have (on average 1.75) internal successors, (56), 35 states have internal predecessors, (56), 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) [2022-11-22 02:30:39,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2022-11-22 02:30:39,468 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 4 [2022-11-22 02:30:39,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:30:39,469 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2022-11-22 02:30:39,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-22 02:30:39,473 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2022-11-22 02:30:39,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 02:30:39,474 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:30:39,474 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 02:30:39,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:30:39,475 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2022-11-22 02:30:39,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:30:39,476 INFO L85 PathProgramCache]: Analyzing trace with hash 10282858, now seen corresponding path program 1 times [2022-11-22 02:30:39,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:30:39,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379124901] [2022-11-22 02:30:39,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:30:39,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:30:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:30:39,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:30:39,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:30:39,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379124901] [2022-11-22 02:30:39,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379124901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:30:39,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:30:39,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:30:39,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913995218] [2022-11-22 02:30:39,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:30:39,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:30:39,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:30:39,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:30:39,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:30:39,644 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-22 02:30:39,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:30:39,667 INFO L93 Difference]: Finished difference Result 28 states and 41 transitions. [2022-11-22 02:30:39,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:30:39,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-11-22 02:30:39,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:30:39,668 INFO L225 Difference]: With dead ends: 28 [2022-11-22 02:30:39,668 INFO L226 Difference]: Without dead ends: 28 [2022-11-22 02:30:39,669 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 [2022-11-22 02:30:39,670 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:30:39,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:30:39,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-22 02:30:39,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-22 02:30:39,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 27 states have internal predecessors, (41), 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) [2022-11-22 02:30:39,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 41 transitions. [2022-11-22 02:30:39,675 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 41 transitions. Word has length 4 [2022-11-22 02:30:39,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:30:39,675 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 41 transitions. [2022-11-22 02:30:39,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-22 02:30:39,675 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2022-11-22 02:30:39,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 02:30:39,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:30:39,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 02:30:39,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:30:39,677 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2022-11-22 02:30:39,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:30:39,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1291014848, now seen corresponding path program 1 times [2022-11-22 02:30:39,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:30:39,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632698151] [2022-11-22 02:30:39,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:30:39,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:30:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:30:39,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:30:39,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:30:39,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632698151] [2022-11-22 02:30:39,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632698151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:30:39,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:30:39,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:30:39,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791438828] [2022-11-22 02:30:39,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:30:39,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:30:39,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:30:39,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:30:39,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:30:39,771 INFO L87 Difference]: Start difference. First operand 28 states and 41 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-11-22 02:30:39,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:30:39,802 INFO L93 Difference]: Finished difference Result 25 states and 36 transitions. [2022-11-22 02:30:39,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:30:39,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) Word has length 6 [2022-11-22 02:30:39,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:30:39,804 INFO L225 Difference]: With dead ends: 25 [2022-11-22 02:30:39,804 INFO L226 Difference]: Without dead ends: 25 [2022-11-22 02:30:39,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:30:39,808 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:30:39,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:30:39,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-22 02:30:39,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-22 02:30:39,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.5) internal successors, (36), 24 states have internal predecessors, (36), 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) [2022-11-22 02:30:39,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 36 transitions. [2022-11-22 02:30:39,828 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 36 transitions. Word has length 6 [2022-11-22 02:30:39,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:30:39,829 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 36 transitions. [2022-11-22 02:30:39,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-11-22 02:30:39,829 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2022-11-22 02:30:39,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 02:30:39,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:30:39,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:30:39,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:30:39,832 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2022-11-22 02:30:39,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:30:39,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1623857526, now seen corresponding path program 1 times [2022-11-22 02:30:39,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:30:39,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986130792] [2022-11-22 02:30:39,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:30:39,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:30:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:30:40,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:30:40,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:30:40,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986130792] [2022-11-22 02:30:40,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986130792] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:30:40,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:30:40,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:30:40,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513309941] [2022-11-22 02:30:40,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:30:40,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:30:40,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:30:40,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:30:40,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:30:40,028 INFO L87 Difference]: Start difference. First operand 25 states and 36 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-22 02:30:40,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:30:40,060 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2022-11-22 02:30:40,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:30:40,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-11-22 02:30:40,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:30:40,061 INFO L225 Difference]: With dead ends: 23 [2022-11-22 02:30:40,061 INFO L226 Difference]: Without dead ends: 23 [2022-11-22 02:30:40,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:30:40,062 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:30:40,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 0 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:30:40,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-22 02:30:40,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-22 02:30:40,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 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) [2022-11-22 02:30:40,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2022-11-22 02:30:40,066 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 12 [2022-11-22 02:30:40,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:30:40,066 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2022-11-22 02:30:40,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-22 02:30:40,066 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2022-11-22 02:30:40,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 02:30:40,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:30:40,067 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:30:40,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:30:40,068 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2022-11-22 02:30:40,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:30:40,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1597064388, now seen corresponding path program 2 times [2022-11-22 02:30:40,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:30:40,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818014045] [2022-11-22 02:30:40,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:30:40,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:30:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:30:40,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:30:40,185 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:30:40,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818014045] [2022-11-22 02:30:40,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818014045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:30:40,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:30:40,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:30:40,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658498313] [2022-11-22 02:30:40,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:30:40,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:30:40,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:30:40,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:30:40,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:30:40,189 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-11-22 02:30:40,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:30:40,209 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2022-11-22 02:30:40,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:30:40,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2022-11-22 02:30:40,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:30:40,211 INFO L225 Difference]: With dead ends: 22 [2022-11-22 02:30:40,211 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 02:30:40,211 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 [2022-11-22 02:30:40,213 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 [2022-11-22 02:30:40,213 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] [2022-11-22 02:30:40,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 02:30:40,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 02:30:40,214 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) [2022-11-22 02:30:40,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 02:30:40,215 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-11-22 02:30:40,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:30:40,216 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 02:30:40,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-11-22 02:30:40,217 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 02:30:40,217 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 02:30:40,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (8 of 9 remaining) [2022-11-22 02:30:40,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 9 remaining) [2022-11-22 02:30:40,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 9 remaining) [2022-11-22 02:30:40,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 9 remaining) [2022-11-22 02:30:40,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 9 remaining) [2022-11-22 02:30:40,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 9 remaining) [2022-11-22 02:30:40,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 9 remaining) [2022-11-22 02:30:40,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 9 remaining) [2022-11-22 02:30:40,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 9 remaining) [2022-11-22 02:30:40,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:30:40,226 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2022-11-22 02:30:40,230 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 02:30:40,230 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:30:40,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:30:40 BasicIcfg [2022-11-22 02:30:40,232 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:30:40,233 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:30:40,233 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:30:40,233 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:30:40,234 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:30:34" (3/4) ... [2022-11-22 02:30:40,236 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 02:30:40,242 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-22 02:30:40,245 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-22 02:30:40,246 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-22 02:30:40,246 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-22 02:30:40,246 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 02:30:40,276 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8c9c88-6f51-4c39-a6c1-cccf8199d7da/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:30:40,276 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:30:40,277 INFO L158 Benchmark]: Toolchain (without parser) took 7113.62ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 127.8MB in the beginning and 130.7MB in the end (delta: -2.9MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2022-11-22 02:30:40,277 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:30:40,278 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.67ms. Allocated memory is still 161.5MB. Free memory was 127.1MB in the beginning and 108.2MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-22 02:30:40,278 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.81ms. Allocated memory is still 161.5MB. Free memory was 108.2MB in the beginning and 106.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:30:40,278 INFO L158 Benchmark]: Boogie Preprocessor took 26.68ms. Allocated memory is still 161.5MB. Free memory was 106.2MB in the beginning and 104.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:30:40,279 INFO L158 Benchmark]: RCFGBuilder took 552.65ms. Allocated memory is still 161.5MB. Free memory was 104.8MB in the beginning and 90.8MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 02:30:40,279 INFO L158 Benchmark]: TraceAbstraction took 5962.65ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 90.1MB in the beginning and 132.8MB in the end (delta: -42.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:30:40,279 INFO L158 Benchmark]: Witness Printer took 43.67ms. Allocated memory is still 195.0MB. Free memory was 132.8MB in the beginning and 130.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:30:40,281 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 475.67ms. Allocated memory is still 161.5MB. Free memory was 127.1MB in the beginning and 108.2MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.81ms. Allocated memory is still 161.5MB. Free memory was 108.2MB in the beginning and 106.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.68ms. Allocated memory is still 161.5MB. Free memory was 106.2MB in the beginning and 104.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 552.65ms. Allocated memory is still 161.5MB. Free memory was 104.8MB in the beginning and 90.8MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5962.65ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 90.1MB in the beginning and 132.8MB in the end (delta: -42.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 43.67ms. Allocated memory is still 195.0MB. Free memory was 132.8MB in the beginning and 130.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.4s, 91 PlacesBefore, 24 PlacesAfterwards, 89 TransitionsBefore, 21 TransitionsAfterwards, 384 CoEnabledTransitionPairs, 8 FixpointIterations, 59 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 96 TotalNumberOfCompositions, 1340 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 585, independent: 433, independent conditional: 0, independent unconditional: 433, dependent: 152, dependent conditional: 0, dependent unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 333, independent: 301, independent conditional: 0, independent unconditional: 301, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 333, independent: 267, independent conditional: 0, independent unconditional: 267, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 66, independent: 34, independent conditional: 0, independent unconditional: 34, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 196, independent: 89, independent conditional: 0, independent unconditional: 89, dependent: 108, dependent conditional: 0, dependent unconditional: 108, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 585, independent: 132, independent conditional: 0, independent unconditional: 132, dependent: 120, dependent conditional: 0, dependent unconditional: 120, unknown: 333, unknown conditional: 0, unknown unconditional: 333] , Statistics on independence cache: Total cache size (in pairs): 28, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, 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: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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: -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: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 696]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 19]: 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, 113 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 5.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 102 IncrementalHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 0 mSDtfsCounter, 102 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 154 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-22 02:30:40,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8c9c88-6f51-4c39-a6c1-cccf8199d7da/bin/utaipan-g80aRyZoba/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: TRUE