./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/list-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 9bd2c7ff 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_6c31cdc5-db16-4475-a6da-7bc7abf9ea94/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c31cdc5-db16-4475-a6da-7bc7abf9ea94/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c31cdc5-db16-4475-a6da-7bc7abf9ea94/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c31cdc5-db16-4475-a6da-7bc7abf9ea94/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c31cdc5-db16-4475-a6da-7bc7abf9ea94/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c31cdc5-db16-4475-a6da-7bc7abf9ea94/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a135e953d64ed0fec81eb2a1e42f4031e3e387fc71d5a5cd2177772a202dc706 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:06:52,360 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:06:52,479 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c31cdc5-db16-4475-a6da-7bc7abf9ea94/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2023-11-19 05:06:52,499 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:06:52,500 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:06:52,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:06:52,579 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:06:52,580 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:06:52,582 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:06:52,592 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:06:52,592 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:06:52,594 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:06:52,595 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:06:52,598 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:06:52,598 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:06:52,599 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:06:52,600 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:06:52,600 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:06:52,601 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:06:52,617 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:06:52,618 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:06:52,619 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:06:52,620 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 05:06:52,620 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 05:06:52,622 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:06:52,622 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:06:52,623 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:06:52,624 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:06:52,624 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:06:52,625 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:06:52,627 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:06:52,627 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 05:06:52,627 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 05:06:52,628 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:06:52,628 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:06:52,629 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:06:52,629 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:06:52,629 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:06:52,630 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:06:52,630 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:06:52,630 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:06:52,631 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:06:52,631 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:06:52,632 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:06:52,633 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:06:52,633 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:06:52,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:06:52,634 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:06:52,634 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:06:52,634 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_6c31cdc5-db16-4475-a6da-7bc7abf9ea94/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c31cdc5-db16-4475-a6da-7bc7abf9ea94/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a135e953d64ed0fec81eb2a1e42f4031e3e387fc71d5a5cd2177772a202dc706 [2023-11-19 05:06:53,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:06:53,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:06:53,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:06:53,116 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:06:53,116 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:06:53,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c31cdc5-db16-4475-a6da-7bc7abf9ea94/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/list-properties/list-2.i [2023-11-19 05:06:57,185 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:06:57,633 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:06:57,634 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c31cdc5-db16-4475-a6da-7bc7abf9ea94/sv-benchmarks/c/list-properties/list-2.i [2023-11-19 05:06:57,654 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c31cdc5-db16-4475-a6da-7bc7abf9ea94/bin/utaipan-verify-t7M7D8N6sZ/data/ff91167eb/7a2b98d9157a42b3b77f28650c7f2dd1/FLAG72fd9315d [2023-11-19 05:06:57,676 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c31cdc5-db16-4475-a6da-7bc7abf9ea94/bin/utaipan-verify-t7M7D8N6sZ/data/ff91167eb/7a2b98d9157a42b3b77f28650c7f2dd1 [2023-11-19 05:06:57,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:06:57,682 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:06:57,685 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:06:57,685 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:06:57,693 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:06:57,694 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:06:57" (1/1) ... [2023-11-19 05:06:57,696 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a6cfe12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:57, skipping insertion in model container [2023-11-19 05:06:57,697 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:06:57" (1/1) ... [2023-11-19 05:06:57,754 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:06:58,159 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:06:58,176 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:06:58,289 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:06:58,357 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:06:58,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:58 WrapperNode [2023-11-19 05:06:58,358 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:06:58,362 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:06:58,362 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:06:58,363 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:06:58,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:58" (1/1) ... [2023-11-19 05:06:58,426 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:58" (1/1) ... [2023-11-19 05:06:58,466 INFO L138 Inliner]: procedures = 124, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 85 [2023-11-19 05:06:58,466 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:06:58,472 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:06:58,473 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:06:58,473 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:06:58,487 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:58" (1/1) ... [2023-11-19 05:06:58,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:58" (1/1) ... [2023-11-19 05:06:58,502 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:58" (1/1) ... [2023-11-19 05:06:58,502 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:58" (1/1) ... [2023-11-19 05:06:58,523 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:58" (1/1) ... [2023-11-19 05:06:58,537 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:58" (1/1) ... [2023-11-19 05:06:58,541 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:58" (1/1) ... [2023-11-19 05:06:58,550 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:58" (1/1) ... [2023-11-19 05:06:58,553 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:06:58,562 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:06:58,562 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:06:58,562 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:06:58,563 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:58" (1/1) ... [2023-11-19 05:06:58,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:06:58,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c31cdc5-db16-4475-a6da-7bc7abf9ea94/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:06:58,609 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c31cdc5-db16-4475-a6da-7bc7abf9ea94/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:06:58,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c31cdc5-db16-4475-a6da-7bc7abf9ea94/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:06:58,662 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2023-11-19 05:06:58,662 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2023-11-19 05:06:58,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:06:58,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:06:58,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:06:58,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:06:58,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:06:58,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:06:58,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:06:58,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:06:58,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:06:58,831 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:06:58,834 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:06:58,886 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2023-11-19 05:06:59,123 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:06:59,149 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:06:59,149 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 05:06:59,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:06:59 BoogieIcfgContainer [2023-11-19 05:06:59,157 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:06:59,161 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:06:59,162 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:06:59,167 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:06:59,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:06:57" (1/3) ... [2023-11-19 05:06:59,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@658d237a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:06:59, skipping insertion in model container [2023-11-19 05:06:59,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:58" (2/3) ... [2023-11-19 05:06:59,169 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@658d237a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:06:59, skipping insertion in model container [2023-11-19 05:06:59,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:06:59" (3/3) ... [2023-11-19 05:06:59,172 INFO L112 eAbstractionObserver]: Analyzing ICFG list-2.i [2023-11-19 05:06:59,203 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:06:59,203 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 05:06:59,276 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:06:59,288 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;@3b3608b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:06:59,288 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 05:06:59,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 25 states have (on average 1.6) internal successors, (40), 29 states have internal predecessors, (40), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:06:59,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 05:06:59,307 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:06:59,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:06:59,308 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 05:06:59,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:06:59,317 INFO L85 PathProgramCache]: Analyzing trace with hash 204601885, now seen corresponding path program 1 times [2023-11-19 05:06:59,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:06:59,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849379945] [2023-11-19 05:06:59,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:06:59,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:06:59,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:06:59,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:06:59,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:06:59,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849379945] [2023-11-19 05:06:59,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849379945] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:06:59,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:06:59,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:06:59,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420844778] [2023-11-19 05:06:59,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:06:59,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:06:59,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:06:59,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:06:59,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:06:59,785 INFO L87 Difference]: Start difference. First operand has 31 states, 25 states have (on average 1.6) internal successors, (40), 29 states have internal predecessors, (40), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 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) [2023-11-19 05:06:59,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:06:59,839 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2023-11-19 05:06:59,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:06:59,843 INFO L78 Accepts]: Start accepts. Automaton has has 2 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 [2023-11-19 05:06:59,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:06:59,853 INFO L225 Difference]: With dead ends: 30 [2023-11-19 05:06:59,854 INFO L226 Difference]: Without dead ends: 24 [2023-11-19 05:06:59,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:06:59,863 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 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 [2023-11-19 05:06:59,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:06:59,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-11-19 05:06:59,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-11-19 05:06:59,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 23 states have internal predecessors, (27), 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) [2023-11-19 05:06:59,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2023-11-19 05:06:59,912 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 12 [2023-11-19 05:06:59,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:06:59,913 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2023-11-19 05:06:59,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 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) [2023-11-19 05:06:59,914 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2023-11-19 05:06:59,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 05:06:59,916 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:06:59,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:06:59,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:06:59,917 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 05:06:59,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:06:59,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1784285797, now seen corresponding path program 1 times [2023-11-19 05:06:59,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:06:59,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900087075] [2023-11-19 05:06:59,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:06:59,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:06:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:00,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:07:00,533 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:07:00,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900087075] [2023-11-19 05:07:00,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900087075] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:07:00,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:07:00,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:07:00,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611665855] [2023-11-19 05:07:00,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:07:00,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:07:00,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:07:00,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:07:00,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:07:00,543 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2023-11-19 05:07:00,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:07:00,766 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2023-11-19 05:07:00,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:07:00,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2023-11-19 05:07:00,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:07:00,771 INFO L225 Difference]: With dead ends: 54 [2023-11-19 05:07:00,771 INFO L226 Difference]: Without dead ends: 54 [2023-11-19 05:07:00,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:07:00,775 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 27 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:07:00,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 66 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:07:00,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-19 05:07:00,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 35. [2023-11-19 05:07:00,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 34 states have internal predecessors, (42), 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) [2023-11-19 05:07:00,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2023-11-19 05:07:00,789 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 16 [2023-11-19 05:07:00,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:07:00,790 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2023-11-19 05:07:00,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2023-11-19 05:07:00,790 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2023-11-19 05:07:00,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 05:07:00,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:00,792 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:07:00,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:07:00,793 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 05:07:00,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:00,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1784273561, now seen corresponding path program 1 times [2023-11-19 05:07:00,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:07:00,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143690773] [2023-11-19 05:07:00,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:00,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:07:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:07:00,819 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:07:00,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:07:00,863 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:07:00,863 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:07:00,865 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2023-11-19 05:07:00,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2023-11-19 05:07:00,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:07:00,874 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 05:07:00,880 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:07:00,900 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated [2023-11-19 05:07:00,903 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated [2023-11-19 05:07:00,904 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated [2023-11-19 05:07:00,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:07:00 BoogieIcfgContainer [2023-11-19 05:07:00,922 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:07:00,923 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:07:00,923 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:07:00,923 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:07:00,924 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:06:59" (3/4) ... [2023-11-19 05:07:00,926 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 05:07:00,933 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated [2023-11-19 05:07:00,934 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated [2023-11-19 05:07:00,935 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated [2023-11-19 05:07:00,984 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c31cdc5-db16-4475-a6da-7bc7abf9ea94/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 05:07:00,984 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:07:00,986 INFO L158 Benchmark]: Toolchain (without parser) took 3303.13ms. Allocated memory is still 161.5MB. Free memory was 130.1MB in the beginning and 104.5MB in the end (delta: 25.6MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2023-11-19 05:07:00,986 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 130.0MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:07:00,987 INFO L158 Benchmark]: CACSL2BoogieTranslator took 675.84ms. Allocated memory is still 161.5MB. Free memory was 130.1MB in the beginning and 113.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 05:07:00,987 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.99ms. Allocated memory is still 161.5MB. Free memory was 113.3MB in the beginning and 111.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:07:00,988 INFO L158 Benchmark]: Boogie Preprocessor took 88.24ms. Allocated memory is still 161.5MB. Free memory was 111.2MB in the beginning and 109.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:07:00,989 INFO L158 Benchmark]: RCFGBuilder took 595.38ms. Allocated memory is still 161.5MB. Free memory was 109.7MB in the beginning and 95.5MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 05:07:00,989 INFO L158 Benchmark]: TraceAbstraction took 1760.45ms. Allocated memory is still 161.5MB. Free memory was 94.4MB in the beginning and 106.6MB in the end (delta: -12.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:07:00,990 INFO L158 Benchmark]: Witness Printer took 61.99ms. Allocated memory is still 161.5MB. Free memory was 106.6MB in the beginning and 104.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:07:00,993 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 130.0MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 675.84ms. Allocated memory is still 161.5MB. Free memory was 130.1MB in the beginning and 113.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.99ms. Allocated memory is still 161.5MB. Free memory was 113.3MB in the beginning and 111.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 88.24ms. Allocated memory is still 161.5MB. Free memory was 111.2MB in the beginning and 109.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 595.38ms. Allocated memory is still 161.5MB. Free memory was 109.7MB in the beginning and 95.5MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1760.45ms. Allocated memory is still 161.5MB. Free memory was 94.4MB in the beginning and 106.6MB in the end (delta: -12.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 61.99ms. Allocated memory is still 161.5MB. Free memory was 106.6MB in the beginning and 104.5MB 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - CounterExampleResult [Line: 531]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L532] List a = (List) malloc(sizeof(struct node)); [L533] COND FALSE !(a == 0) VAL [a={-1:0}] [L534] List t; [L535] List p = a; VAL [a={-1:0}, p={-1:0}] [L536] COND FALSE !(__VERIFIER_nondet_int()) [L543] COND FALSE !(__VERIFIER_nondet_int()) [L550] p->h = 3 [L551] p = a VAL [a={-1:0}, p={-1:0}] [L552] EXPR p->h VAL [a={-1:0}, p={-1:0}] [L552] COND FALSE !(p->h == 2) [L554] EXPR p->h VAL [a={-1:0}, p={-1:0}] [L554] COND FALSE !(p->h == 1) [L556] EXPR p->h VAL [a={-1:0}, p={-1:0}] [L556] COND FALSE !(p->h != 3) [L558] return 0; VAL [\result=0, a={-1:0}, p={-1:0}] - UnprovableResult [Line: 12]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 50 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 61 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 49 mSDtfsCounter, 61 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=2, InterpolantAutomatonStates: 7, 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, 19 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 88 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-19 05:07:01,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c31cdc5-db16-4475-a6da-7bc7abf9ea94/bin/utaipan-verify-t7M7D8N6sZ/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup)