./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0158-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b 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_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp --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 71b5f65f2f8d87850f90a0c5b95ff806d4054a596ed67d86f7cc490935279607 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:56:56,229 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:56:56,377 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 20:56:56,386 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:56:56,387 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:56:56,430 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:56:56,431 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:56:56,431 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:56:56,432 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:56:56,437 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:56:56,438 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:56:56,438 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:56:56,439 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:56:56,441 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 20:56:56,441 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:56:56,442 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:56:56,442 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 20:56:56,442 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 20:56:56,443 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:56:56,443 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 20:56:56,444 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 20:56:56,444 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 20:56:56,445 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:56:56,445 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:56:56,446 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:56:56,447 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:56:56,447 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:56:56,448 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:56:56,448 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:56:56,449 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:56:56,450 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:56:56,450 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:56:56,451 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:56:56,451 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:56:56,451 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:56:56,451 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:56:56,451 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:56:56,452 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:56:56,452 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:56:56,452 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:56:56,453 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:56:56,453 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:56:56,453 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 20:56:56,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 20:56:56,454 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:56:56,454 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:56:56,455 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_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71b5f65f2f8d87850f90a0c5b95ff806d4054a596ed67d86f7cc490935279607 [2023-11-06 20:56:56,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:56:56,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:56:56,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:56:56,856 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:56:56,857 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:56:56,859 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/memsafety/test-0158-2.i [2023-11-06 20:56:59,946 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:57:00,216 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:57:00,216 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/sv-benchmarks/c/memsafety/test-0158-2.i [2023-11-06 20:57:00,231 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/data/c2ce78ccc/e44d33c951904f3893a89bb149b4bd68/FLAG79538602e [2023-11-06 20:57:00,248 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/data/c2ce78ccc/e44d33c951904f3893a89bb149b4bd68 [2023-11-06 20:57:00,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:57:00,252 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:57:00,254 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:57:00,254 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:57:00,260 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:57:00,261 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:57:00" (1/1) ... [2023-11-06 20:57:00,262 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2faebffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:00, skipping insertion in model container [2023-11-06 20:57:00,263 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:57:00" (1/1) ... [2023-11-06 20:57:00,305 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:57:00,693 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:57:00,705 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:57:00,773 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:57:00,803 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:57:00,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:00 WrapperNode [2023-11-06 20:57:00,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:57:00,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:57:00,804 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:57:00,805 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:57:00,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:00" (1/1) ... [2023-11-06 20:57:00,825 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:00" (1/1) ... [2023-11-06 20:57:00,844 INFO L138 Inliner]: procedures = 123, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2023-11-06 20:57:00,844 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:57:00,845 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:57:00,845 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:57:00,846 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:57:00,855 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:00" (1/1) ... [2023-11-06 20:57:00,855 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:00" (1/1) ... [2023-11-06 20:57:00,858 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:00" (1/1) ... [2023-11-06 20:57:00,859 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:00" (1/1) ... [2023-11-06 20:57:00,864 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:00" (1/1) ... [2023-11-06 20:57:00,866 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:00" (1/1) ... [2023-11-06 20:57:00,867 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:00" (1/1) ... [2023-11-06 20:57:00,868 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:00" (1/1) ... [2023-11-06 20:57:00,871 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:57:00,872 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:57:00,872 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:57:00,872 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:57:00,873 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:00" (1/1) ... [2023-11-06 20:57:00,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:57:00,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:57:00,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:57:00,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:57:00,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 20:57:00,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 20:57:00,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:57:00,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 20:57:00,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:57:00,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:57:00,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 20:57:00,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:57:00,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:57:01,040 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:57:01,042 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:57:01,182 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:57:01,217 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:57:01,217 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 20:57:01,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:57:01 BoogieIcfgContainer [2023-11-06 20:57:01,220 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:57:01,228 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:57:01,228 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:57:01,232 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:57:01,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:57:00" (1/3) ... [2023-11-06 20:57:01,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197b3a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:57:01, skipping insertion in model container [2023-11-06 20:57:01,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:00" (2/3) ... [2023-11-06 20:57:01,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197b3a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:57:01, skipping insertion in model container [2023-11-06 20:57:01,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:57:01" (3/3) ... [2023-11-06 20:57:01,245 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2023-11-06 20:57:01,269 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:57:01,270 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-11-06 20:57:01,347 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 20:57:01,357 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;@72cfdad4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 20:57:01,358 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-06 20:57:01,363 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 5 states have (on average 2.4) internal successors, (12), 12 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) [2023-11-06 20:57:01,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-06 20:57:01,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:57:01,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-06 20:57:01,374 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-06 20:57:01,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:57:01,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1554, now seen corresponding path program 1 times [2023-11-06 20:57:01,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 20:57:01,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759349044] [2023-11-06 20:57:01,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:57:01,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 20:57:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:57:01,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:57:01,733 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 20:57:01,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759349044] [2023-11-06 20:57:01,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759349044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:57:01,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:57:01,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 20:57:01,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667688615] [2023-11-06 20:57:01,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:57:01,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 20:57:01,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 20:57:01,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 20:57:01,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 20:57:01,779 INFO L87 Difference]: Start difference. First operand has 13 states, 5 states have (on average 2.4) internal successors, (12), 12 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) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-06 20:57:01,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:57:01,824 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2023-11-06 20:57:01,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 20:57:01,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-06 20:57:01,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:57:01,835 INFO L225 Difference]: With dead ends: 10 [2023-11-06 20:57:01,835 INFO L226 Difference]: Without dead ends: 9 [2023-11-06 20:57:01,837 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 [2023-11-06 20:57:01,841 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 20:57:01,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 20:57:01,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-06 20:57:01,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-11-06 20:57:01,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 5 states have (on average 1.6) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:57:01,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2023-11-06 20:57:01,876 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 2 [2023-11-06 20:57:01,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:57:01,877 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2023-11-06 20:57:01,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-06 20:57:01,878 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2023-11-06 20:57:01,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-06 20:57:01,878 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:57:01,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-06 20:57:01,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 20:57:01,879 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-06 20:57:01,880 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:57:01,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1555, now seen corresponding path program 1 times [2023-11-06 20:57:01,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 20:57:01,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553817424] [2023-11-06 20:57:01,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:57:01,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 20:57:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:57:02,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:57:02,038 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 20:57:02,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553817424] [2023-11-06 20:57:02,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553817424] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:57:02,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:57:02,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 20:57:02,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812285859] [2023-11-06 20:57:02,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:57:02,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 20:57:02,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 20:57:02,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 20:57:02,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 20:57:02,044 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-06 20:57:02,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:57:02,071 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2023-11-06 20:57:02,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 20:57:02,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-06 20:57:02,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:57:02,073 INFO L225 Difference]: With dead ends: 6 [2023-11-06 20:57:02,074 INFO L226 Difference]: Without dead ends: 6 [2023-11-06 20:57:02,077 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 [2023-11-06 20:57:02,079 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 20:57:02,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 20:57:02,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2023-11-06 20:57:02,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2023-11-06 20:57:02,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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) [2023-11-06 20:57:02,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2023-11-06 20:57:02,086 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 2 [2023-11-06 20:57:02,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:57:02,087 INFO L495 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2023-11-06 20:57:02,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-06 20:57:02,087 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2023-11-06 20:57:02,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 20:57:02,088 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:57:02,088 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 20:57:02,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 20:57:02,089 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-06 20:57:02,090 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:57:02,090 INFO L85 PathProgramCache]: Analyzing trace with hash 46808961, now seen corresponding path program 1 times [2023-11-06 20:57:02,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 20:57:02,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773088348] [2023-11-06 20:57:02,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:57:02,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 20:57:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 20:57:02,160 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 20:57:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 20:57:02,198 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-06 20:57:02,198 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 20:57:02,200 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2023-11-06 20:57:02,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2023-11-06 20:57:02,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2023-11-06 20:57:02,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2023-11-06 20:57:02,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2023-11-06 20:57:02,204 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 7 remaining) [2023-11-06 20:57:02,204 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 7 remaining) [2023-11-06 20:57:02,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 20:57:02,208 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-06 20:57:02,213 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 20:57:02,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 08:57:02 BoogieIcfgContainer [2023-11-06 20:57:02,229 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 20:57:02,230 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 20:57:02,230 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 20:57:02,231 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 20:57:02,231 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:57:01" (3/4) ... [2023-11-06 20:57:02,237 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 20:57:02,239 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 20:57:02,241 INFO L158 Benchmark]: Toolchain (without parser) took 1988.72ms. Allocated memory is still 182.5MB. Free memory was 145.2MB in the beginning and 89.6MB in the end (delta: 55.6MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2023-11-06 20:57:02,241 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 123.7MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:57:02,242 INFO L158 Benchmark]: CACSL2BoogieTranslator took 549.68ms. Allocated memory is still 182.5MB. Free memory was 145.2MB in the beginning and 144.8MB in the end (delta: 385.0kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 20:57:02,242 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.31ms. Allocated memory is still 182.5MB. Free memory was 144.8MB in the beginning and 143.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 20:57:02,243 INFO L158 Benchmark]: Boogie Preprocessor took 25.60ms. Allocated memory is still 182.5MB. Free memory was 143.3MB in the beginning and 142.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:57:02,243 INFO L158 Benchmark]: RCFGBuilder took 348.48ms. Allocated memory is still 182.5MB. Free memory was 142.0MB in the beginning and 129.9MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 20:57:02,244 INFO L158 Benchmark]: TraceAbstraction took 1001.71ms. Allocated memory is still 182.5MB. Free memory was 128.7MB in the beginning and 89.6MB in the end (delta: 39.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-06 20:57:02,244 INFO L158 Benchmark]: Witness Printer took 10.39ms. Allocated memory is still 182.5MB. Free memory is still 89.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:57:02,247 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 123.7MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 549.68ms. Allocated memory is still 182.5MB. Free memory was 145.2MB in the beginning and 144.8MB in the end (delta: 385.0kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.31ms. Allocated memory is still 182.5MB. Free memory was 144.8MB in the beginning and 143.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.60ms. Allocated memory is still 182.5MB. Free memory was 143.3MB in the beginning and 142.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 348.48ms. Allocated memory is still 182.5MB. Free memory was 142.0MB in the beginning and 129.9MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1001.71ms. Allocated memory is still 182.5MB. Free memory was 128.7MB in the beginning and 89.6MB in the end (delta: 39.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 10.39ms. Allocated memory is still 182.5MB. Free memory is still 89.6MB. There was no memory consumed. Max. memory is 16.1GB. * 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 - UnprovableResult [Line: 523]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 523. Possible FailurePath: [L525-L532] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L533] data.p0 = malloc(37U) [L534] data.str.p2 = &data VAL [data={3:0}] [L535] data.str.c[1] = sizeof data.str.p1 [L536] return 0; [L536] return 0; VAL [\result=0] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 2 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 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 could not prove your program: unable to determine feasibility of some traces [2023-11-06 20:57:02,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp --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 71b5f65f2f8d87850f90a0c5b95ff806d4054a596ed67d86f7cc490935279607 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:57:04,913 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:57:05,044 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-06 20:57:05,051 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:57:05,052 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:57:05,093 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:57:05,094 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:57:05,095 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:57:05,096 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:57:05,100 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:57:05,101 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:57:05,101 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:57:05,102 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:57:05,103 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:57:05,104 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:57:05,104 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:57:05,105 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:57:05,105 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:57:05,106 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:57:05,107 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:57:05,108 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:57:05,108 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:57:05,109 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:57:05,109 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:57:05,110 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:57:05,110 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:57:05,111 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:57:05,111 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:57:05,112 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 20:57:05,112 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 20:57:05,113 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:57:05,114 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:57:05,114 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:57:05,114 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:57:05,115 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 20:57:05,115 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:57:05,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:57:05,116 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:57:05,116 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:57:05,117 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 20:57:05,117 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 20:57:05,117 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:57:05,118 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:57:05,118 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71b5f65f2f8d87850f90a0c5b95ff806d4054a596ed67d86f7cc490935279607 [2023-11-06 20:57:05,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:57:05,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:57:05,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:57:05,600 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:57:05,601 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:57:05,602 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/memsafety/test-0158-2.i [2023-11-06 20:57:08,881 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:57:09,235 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:57:09,236 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/sv-benchmarks/c/memsafety/test-0158-2.i [2023-11-06 20:57:09,255 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/data/55c0bd624/156ba7b3cdd94c53b2dde3dc9fe02794/FLAG8861d83da [2023-11-06 20:57:09,278 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/data/55c0bd624/156ba7b3cdd94c53b2dde3dc9fe02794 [2023-11-06 20:57:09,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:57:09,287 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:57:09,291 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:57:09,292 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:57:09,297 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:57:09,298 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:57:09" (1/1) ... [2023-11-06 20:57:09,299 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65938377 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:09, skipping insertion in model container [2023-11-06 20:57:09,300 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:57:09" (1/1) ... [2023-11-06 20:57:09,361 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:57:09,739 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:57:09,756 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:57:09,816 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:57:09,856 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:57:09,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:09 WrapperNode [2023-11-06 20:57:09,857 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:57:09,858 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:57:09,859 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:57:09,859 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:57:09,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:09" (1/1) ... [2023-11-06 20:57:09,902 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:09" (1/1) ... [2023-11-06 20:57:09,928 INFO L138 Inliner]: procedures = 124, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-11-06 20:57:09,930 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:57:09,931 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:57:09,931 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:57:09,932 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:57:09,941 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:09" (1/1) ... [2023-11-06 20:57:09,942 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:09" (1/1) ... [2023-11-06 20:57:09,958 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:09" (1/1) ... [2023-11-06 20:57:09,959 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:09" (1/1) ... [2023-11-06 20:57:09,965 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:09" (1/1) ... [2023-11-06 20:57:09,972 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:09" (1/1) ... [2023-11-06 20:57:09,974 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:09" (1/1) ... [2023-11-06 20:57:09,980 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:09" (1/1) ... [2023-11-06 20:57:09,984 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:57:09,987 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:57:09,987 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:57:09,987 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:57:09,988 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:09" (1/1) ... [2023-11-06 20:57:10,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:57:10,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:57:10,038 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:57:10,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:57:10,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 20:57:10,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:57:10,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 20:57:10,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:57:10,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-06 20:57:10,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:57:10,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 20:57:10,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:57:10,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:57:10,268 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:57:10,270 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:57:10,461 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:57:10,466 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:57:10,472 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 20:57:10,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:57:10 BoogieIcfgContainer [2023-11-06 20:57:10,474 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:57:10,477 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:57:10,478 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:57:10,481 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:57:10,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:57:09" (1/3) ... [2023-11-06 20:57:10,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27a85d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:57:10, skipping insertion in model container [2023-11-06 20:57:10,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:57:09" (2/3) ... [2023-11-06 20:57:10,486 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27a85d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:57:10, skipping insertion in model container [2023-11-06 20:57:10,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:57:10" (3/3) ... [2023-11-06 20:57:10,488 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2023-11-06 20:57:10,506 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:57:10,506 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-11-06 20:57:10,547 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 20:57:10,555 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;@478306a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 20:57:10,555 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-06 20:57:10,559 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 16 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) [2023-11-06 20:57:10,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 20:57:10,565 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:57:10,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 20:57:10,567 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-06 20:57:10,572 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:57:10,572 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2023-11-06 20:57:10,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 20:57:10,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1137180955] [2023-11-06 20:57:10,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:57:10,591 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 20:57:10,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 20:57:10,597 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 20:57:10,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 20:57:10,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:57:10,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 20:57:10,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 20:57:10,847 INFO L322 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-06 20:57:10,848 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2023-11-06 20:57:10,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:57:10,897 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 20:57:10,898 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-06 20:57:10,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1137180955] [2023-11-06 20:57:10,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1137180955] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:57:10,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:57:10,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 20:57:10,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517806069] [2023-11-06 20:57:10,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:57:10,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 20:57:10,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-06 20:57:10,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 20:57:10,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 20:57:10,941 INFO L87 Difference]: Start difference. First operand has 17 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 16 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:57:11,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:57:11,014 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2023-11-06 20:57:11,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 20:57:11,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-06 20:57:11,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:57:11,023 INFO L225 Difference]: With dead ends: 14 [2023-11-06 20:57:11,024 INFO L226 Difference]: Without dead ends: 12 [2023-11-06 20:57:11,025 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 [2023-11-06 20:57:11,030 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 20:57:11,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 7 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 20:57:11,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-06 20:57:11,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-06 20:57:11,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 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) [2023-11-06 20:57:11,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2023-11-06 20:57:11,064 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 3 [2023-11-06 20:57:11,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:57:11,065 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2023-11-06 20:57:11,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:57:11,066 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2023-11-06 20:57:11,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 20:57:11,066 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:57:11,066 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 20:57:11,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-06 20:57:11,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 20:57:11,271 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-06 20:57:11,271 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:57:11,272 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-11-06 20:57:11,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 20:57:11,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [455538343] [2023-11-06 20:57:11,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:57:11,273 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 20:57:11,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 20:57:11,275 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 20:57:11,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-06 20:57:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:57:11,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 20:57:11,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 20:57:11,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 20:57:11,426 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-11-06 20:57:11,445 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-06 20:57:11,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:57:11,482 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 20:57:11,482 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-06 20:57:11,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [455538343] [2023-11-06 20:57:11,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [455538343] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:57:11,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:57:11,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 20:57:11,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463173388] [2023-11-06 20:57:11,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:57:11,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 20:57:11,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-06 20:57:11,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 20:57:11,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 20:57:11,491 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:57:11,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:57:11,538 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2023-11-06 20:57:11,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 20:57:11,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-06 20:57:11,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:57:11,539 INFO L225 Difference]: With dead ends: 9 [2023-11-06 20:57:11,539 INFO L226 Difference]: Without dead ends: 9 [2023-11-06 20:57:11,540 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 [2023-11-06 20:57:11,542 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 20:57:11,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 20:57:11,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-06 20:57:11,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-11-06 20:57:11,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:57:11,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2023-11-06 20:57:11,550 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 3 [2023-11-06 20:57:11,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:57:11,551 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2023-11-06 20:57:11,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:57:11,554 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2023-11-06 20:57:11,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 20:57:11,555 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:57:11,555 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 20:57:11,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-06 20:57:11,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 20:57:11,756 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-06 20:57:11,757 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:57:11,757 INFO L85 PathProgramCache]: Analyzing trace with hash 59200043, now seen corresponding path program 1 times [2023-11-06 20:57:11,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 20:57:11,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251064999] [2023-11-06 20:57:11,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:57:11,759 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 20:57:11,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 20:57:11,762 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 20:57:11,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-06 20:57:11,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 20:57:11,908 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 20:57:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 20:57:11,976 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-06 20:57:11,976 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 20:57:11,977 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2023-11-06 20:57:11,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2023-11-06 20:57:11,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2023-11-06 20:57:11,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2023-11-06 20:57:11,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2023-11-06 20:57:11,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 7 remaining) [2023-11-06 20:57:11,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 7 remaining) [2023-11-06 20:57:11,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-06 20:57:12,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 20:57:12,185 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-06 20:57:12,191 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 20:57:12,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 08:57:12 BoogieIcfgContainer [2023-11-06 20:57:12,208 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 20:57:12,209 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 20:57:12,209 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 20:57:12,209 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 20:57:12,210 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:57:10" (3/4) ... [2023-11-06 20:57:12,213 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 20:57:12,214 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 20:57:12,219 INFO L158 Benchmark]: Toolchain (without parser) took 2928.97ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 56.1MB in the beginning and 49.4MB in the end (delta: 6.7MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2023-11-06 20:57:12,220 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 81.8MB. Free memory is still 56.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:57:12,220 INFO L158 Benchmark]: CACSL2BoogieTranslator took 566.25ms. Allocated memory is still 81.8MB. Free memory was 55.8MB in the beginning and 38.9MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-06 20:57:12,221 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.58ms. Allocated memory is still 81.8MB. Free memory was 38.9MB in the beginning and 37.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 20:57:12,221 INFO L158 Benchmark]: Boogie Preprocessor took 54.70ms. Allocated memory is still 81.8MB. Free memory was 37.0MB in the beginning and 35.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:57:12,222 INFO L158 Benchmark]: RCFGBuilder took 487.76ms. Allocated memory is still 81.8MB. Free memory was 35.7MB in the beginning and 50.1MB in the end (delta: -14.4MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2023-11-06 20:57:12,222 INFO L158 Benchmark]: TraceAbstraction took 1730.99ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 49.4MB in the beginning and 49.8MB in the end (delta: -426.2kB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2023-11-06 20:57:12,223 INFO L158 Benchmark]: Witness Printer took 5.36ms. Allocated memory is still 98.6MB. Free memory was 49.8MB in the beginning and 49.4MB in the end (delta: 472.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:57:12,226 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 81.8MB. Free memory is still 56.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 566.25ms. Allocated memory is still 81.8MB. Free memory was 55.8MB in the beginning and 38.9MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.58ms. Allocated memory is still 81.8MB. Free memory was 38.9MB in the beginning and 37.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.70ms. Allocated memory is still 81.8MB. Free memory was 37.0MB in the beginning and 35.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 487.76ms. Allocated memory is still 81.8MB. Free memory was 35.7MB in the beginning and 50.1MB in the end (delta: -14.4MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1730.99ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 49.4MB in the beginning and 49.8MB in the end (delta: -426.2kB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * Witness Printer took 5.36ms. Allocated memory is still 98.6MB. Free memory was 49.8MB in the beginning and 49.4MB in the end (delta: 472.7kB). There was no memory consumed. Max. memory is 16.1GB. * 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 - UnprovableResult [Line: 523]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 523. Possible FailurePath: [L525-L532] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L533] data.p0 = malloc(37U) VAL [data={13:0}, malloc(37U)={3:0}] [L534] data.str.p2 = &data VAL [data={13:0}] [L535] data.str.c[1] = sizeof data.str.p1 VAL [data={13:0}] [L536] return 0; [L536] return 0; VAL [\result=0] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 10 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 4 ConstructedInterpolants, 1 QuantifiedInterpolants, 27 SizeOfPredicates, 2 NumberOfNonLiveVariables, 54 ConjunctsInSsa, 10 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 could not prove your program: unable to determine feasibility of some traces [2023-11-06 20:57:12,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa3276-fe58-4b6f-a5d4-3ba17d21dbe0/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample