./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --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 165c3d31baf6e9e6eb3241886fc1e2aed511e6788979a2e699609d2c8b9e748b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:21:17,118 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:21:17,208 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-09 05:21:17,217 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:21:17,219 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:21:17,264 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:21:17,265 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:21:17,265 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:21:17,266 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:21:17,267 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:21:17,267 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:21:17,268 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:21:17,268 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:21:17,269 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:21:17,271 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:21:17,272 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:21:17,272 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:21:17,272 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:21:17,273 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:21:17,273 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:21:17,273 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:21:17,278 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:21:17,279 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 05:21:17,279 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 05:21:17,280 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:21:17,280 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:21:17,280 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:21:17,281 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:21:17,281 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:21:17,282 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 05:21:17,282 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 05:21:17,282 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 05:21:17,283 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:21:17,283 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:21:17,283 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:21:17,284 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:21:17,284 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:21:17,285 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:21:17,285 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:21:17,285 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:21:17,286 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:21:17,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:21:17,287 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:21:17,287 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:21:17,287 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:21:17,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:21:17,288 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:21:17,288 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:21:17,288 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:21:17,288 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_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 165c3d31baf6e9e6eb3241886fc1e2aed511e6788979a2e699609d2c8b9e748b [2024-11-09 05:21:17,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:21:17,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:21:17,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:21:17,700 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:21:17,701 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:21:17,702 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i Unable to find full path for "g++" [2024-11-09 05:21:19,994 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:21:20,267 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:21:20,268 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2024-11-09 05:21:20,282 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/data/33d722396/69cc225f886e47eeb2532467fb3d9c1c/FLAG2d16da6b6 [2024-11-09 05:21:20,581 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/data/33d722396/69cc225f886e47eeb2532467fb3d9c1c [2024-11-09 05:21:20,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:21:20,587 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:21:20,590 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:21:20,591 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:21:20,598 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:21:20,602 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:21:20" (1/1) ... [2024-11-09 05:21:20,603 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75d5c2e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:20, skipping insertion in model container [2024-11-09 05:21:20,604 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:21:20" (1/1) ... [2024-11-09 05:21:20,667 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:21:21,039 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:21:21,058 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:21:21,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:21:21,085 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:21:21,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:21:21,206 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:21:21,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:21 WrapperNode [2024-11-09 05:21:21,207 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:21:21,208 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:21:21,208 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:21:21,209 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:21:21,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:21" (1/1) ... [2024-11-09 05:21:21,238 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:21" (1/1) ... [2024-11-09 05:21:21,268 INFO L138 Inliner]: procedures = 117, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 48 [2024-11-09 05:21:21,271 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:21:21,272 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:21:21,272 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:21:21,273 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:21:21,286 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:21" (1/1) ... [2024-11-09 05:21:21,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:21" (1/1) ... [2024-11-09 05:21:21,294 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:21" (1/1) ... [2024-11-09 05:21:21,294 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:21" (1/1) ... [2024-11-09 05:21:21,307 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:21" (1/1) ... [2024-11-09 05:21:21,314 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:21" (1/1) ... [2024-11-09 05:21:21,315 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:21" (1/1) ... [2024-11-09 05:21:21,317 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:21" (1/1) ... [2024-11-09 05:21:21,319 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:21:21,321 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:21:21,321 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:21:21,321 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:21:21,322 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:21" (1/1) ... [2024-11-09 05:21:21,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:21:21,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:21:21,381 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:21:21,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:21:21,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:21:21,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 05:21:21,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:21:21,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:21:21,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:21:21,618 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:21:21,622 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:21:21,903 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-11-09 05:21:21,903 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:21:21,989 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:21:21,990 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:21:21,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:21:21 BoogieIcfgContainer [2024-11-09 05:21:21,990 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:21:21,993 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:21:21,994 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:21:21,997 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:21:21,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:21:20" (1/3) ... [2024-11-09 05:21:21,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69bc924c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:21:21, skipping insertion in model container [2024-11-09 05:21:21,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:21" (2/3) ... [2024-11-09 05:21:21,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69bc924c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:21:21, skipping insertion in model container [2024-11-09 05:21:21,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:21:21" (3/3) ... [2024-11-09 05:21:22,001 INFO L112 eAbstractionObserver]: Analyzing ICFG array-realloc-3.i [2024-11-09 05:21:22,020 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:21:22,020 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-09 05:21:22,069 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:21:22,077 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@74fe63c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:21:22,077 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-09 05:21:22,084 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 8 states have (on average 1.875) internal successors, (15), 11 states have internal predecessors, (15), 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) [2024-11-09 05:21:22,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 05:21:22,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:22,092 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 05:21:22,094 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:21:22,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:22,104 INFO L85 PathProgramCache]: Analyzing trace with hash 72270, now seen corresponding path program 1 times [2024-11-09 05:21:22,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:22,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562642493] [2024-11-09 05:21:22,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:22,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:22,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:21:22,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:22,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562642493] [2024-11-09 05:21:22,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562642493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:22,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:21:22,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 05:21:22,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011971616] [2024-11-09 05:21:22,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:22,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:21:22,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:21:22,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:21:22,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:21:22,407 INFO L87 Difference]: Start difference. First operand has 12 states, 8 states have (on average 1.875) internal successors, (15), 11 states have internal predecessors, (15), 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), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:21:22,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:22,479 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2024-11-09 05:21:22,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:21:22,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-09 05:21:22,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:22,494 INFO L225 Difference]: With dead ends: 13 [2024-11-09 05:21:22,494 INFO L226 Difference]: Without dead ends: 11 [2024-11-09 05:21:22,496 INFO L431 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 [2024-11-09 05:21:22,501 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:22,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:21:22,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-11-09 05:21:22,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-11-09 05:21:22,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.625) internal successors, (13), 10 states have internal predecessors, (13), 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) [2024-11-09 05:21:22,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2024-11-09 05:21:22,555 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 3 [2024-11-09 05:21:22,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:22,556 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2024-11-09 05:21:22,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:21:22,563 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2024-11-09 05:21:22,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 05:21:22,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:22,564 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 05:21:22,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:21:22,568 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:21:22,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:22,569 INFO L85 PathProgramCache]: Analyzing trace with hash 2241402, now seen corresponding path program 1 times [2024-11-09 05:21:22,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:22,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944212719] [2024-11-09 05:21:22,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:22,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:22,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:21:22,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:22,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944212719] [2024-11-09 05:21:22,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944212719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:22,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:21:22,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:21:22,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119602587] [2024-11-09 05:21:22,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:22,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:21:22,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:21:22,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:21:22,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:21:22,686 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:21:22,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:22,741 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2024-11-09 05:21:22,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:21:22,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-09 05:21:22,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:22,743 INFO L225 Difference]: With dead ends: 11 [2024-11-09 05:21:22,743 INFO L226 Difference]: Without dead ends: 11 [2024-11-09 05:21:22,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:21:22,746 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:22,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:21:22,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-11-09 05:21:22,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-11-09 05:21:22,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.5) internal successors, (12), 10 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) [2024-11-09 05:21:22,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2024-11-09 05:21:22,750 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 4 [2024-11-09 05:21:22,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:22,751 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2024-11-09 05:21:22,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:21:22,751 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2024-11-09 05:21:22,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 05:21:22,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:22,752 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 05:21:22,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:21:22,753 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:21:22,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:22,754 INFO L85 PathProgramCache]: Analyzing trace with hash -2140941907, now seen corresponding path program 1 times [2024-11-09 05:21:22,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:22,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53896534] [2024-11-09 05:21:22,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:22,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:23,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:21:23,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:23,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53896534] [2024-11-09 05:21:23,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53896534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:23,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:21:23,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:21:23,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585505906] [2024-11-09 05:21:23,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:23,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:21:23,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:21:23,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:21:23,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:21:23,141 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:21:23,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:23,196 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2024-11-09 05:21:23,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:21:23,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-09 05:21:23,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:23,199 INFO L225 Difference]: With dead ends: 13 [2024-11-09 05:21:23,199 INFO L226 Difference]: Without dead ends: 13 [2024-11-09 05:21:23,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:21:23,202 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:23,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 17 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:21:23,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-09 05:21:23,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 10. [2024-11-09 05:21:23,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 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) [2024-11-09 05:21:23,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2024-11-09 05:21:23,207 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2024-11-09 05:21:23,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:23,208 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2024-11-09 05:21:23,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:21:23,209 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2024-11-09 05:21:23,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 05:21:23,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:23,210 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 05:21:23,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:21:23,210 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:21:23,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:23,212 INFO L85 PathProgramCache]: Analyzing trace with hash -2140941906, now seen corresponding path program 1 times [2024-11-09 05:21:23,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:23,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005370645] [2024-11-09 05:21:23,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:23,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:23,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:21:23,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:23,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005370645] [2024-11-09 05:21:23,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005370645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:23,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:21:23,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:21:23,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689352371] [2024-11-09 05:21:23,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:23,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:21:23,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:21:23,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:21:23,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:21:23,552 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:21:23,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:23,595 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2024-11-09 05:21:23,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:21:23,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-09 05:21:23,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:23,596 INFO L225 Difference]: With dead ends: 16 [2024-11-09 05:21:23,596 INFO L226 Difference]: Without dead ends: 16 [2024-11-09 05:21:23,597 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:21:23,598 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:23,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:21:23,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-09 05:21:23,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2024-11-09 05:21:23,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 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) [2024-11-09 05:21:23,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2024-11-09 05:21:23,602 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 6 [2024-11-09 05:21:23,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:23,602 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2024-11-09 05:21:23,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:21:23,603 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2024-11-09 05:21:23,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 05:21:23,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:23,603 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 05:21:23,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 05:21:23,604 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:21:23,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:23,605 INFO L85 PathProgramCache]: Analyzing trace with hash -2140924785, now seen corresponding path program 1 times [2024-11-09 05:21:23,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:23,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375163840] [2024-11-09 05:21:23,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:23,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:23,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:21:23,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:23,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375163840] [2024-11-09 05:21:23,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375163840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:23,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:21:23,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:21:23,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774321780] [2024-11-09 05:21:23,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:23,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:21:23,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:21:23,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:21:23,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:21:23,654 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:21:23,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:23,690 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2024-11-09 05:21:23,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:21:23,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-09 05:21:23,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:23,692 INFO L225 Difference]: With dead ends: 13 [2024-11-09 05:21:23,692 INFO L226 Difference]: Without dead ends: 13 [2024-11-09 05:21:23,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:21:23,694 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:23,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 5 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:21:23,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-09 05:21:23,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-09 05:21:23,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 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) [2024-11-09 05:21:23,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2024-11-09 05:21:23,701 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 6 [2024-11-09 05:21:23,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:23,702 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2024-11-09 05:21:23,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:21:23,704 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-11-09 05:21:23,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 05:21:23,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:23,705 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-09 05:21:23,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:21:23,705 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:21:23,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:23,706 INFO L85 PathProgramCache]: Analyzing trace with hash -535512255, now seen corresponding path program 1 times [2024-11-09 05:21:23,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:23,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186949817] [2024-11-09 05:21:23,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:23,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:24,013 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:21:24,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:24,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186949817] [2024-11-09 05:21:24,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186949817] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:21:24,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722172674] [2024-11-09 05:21:24,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:24,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:21:24,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:21:24,019 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:21:24,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:21:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:24,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:21:24,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:21:24,300 INFO L378 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 8 treesize of output 1 [2024-11-09 05:21:24,331 INFO L378 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 8 treesize of output 1 [2024-11-09 05:21:24,339 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-09 05:21:24,450 INFO L378 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 8 treesize of output 1 [2024-11-09 05:21:24,477 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:21:24,477 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:21:25,456 INFO L349 Elim1Store]: treesize reduction 10, result has 70.6 percent of original size [2024-11-09 05:21:25,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 110 treesize of output 135 [2024-11-09 05:21:25,490 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:21:25,490 INFO L378 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 98 [2024-11-09 05:21:25,846 INFO L349 Elim1Store]: treesize reduction 68, result has 36.4 percent of original size [2024-11-09 05:21:25,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 139 treesize of output 159 [2024-11-09 05:21:25,889 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:21:25,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 162 treesize of output 180 [2024-11-09 05:21:26,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:21:26,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722172674] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:21:26,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1680196013] [2024-11-09 05:21:26,488 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2024-11-09 05:21:26,488 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:21:26,494 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:21:26,500 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:21:26,501 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:21:27,054 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:21:27,431 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '219#(and (<= 1 |#StackHeapBarrier|) (<= ~num~0 99) (exists ((|v_ULTIMATE.start_expandArray_~b~0#1.offset_27| Int) (|v_ULTIMATE.start_expandArray_~b~0#1.base_29| Int)) (and (= ~ind~0 0) (or (< (select |#length| |v_ULTIMATE.start_expandArray_~b~0#1.base_29|) (+ (* ~newsize~0 4) |v_ULTIMATE.start_expandArray_~b~0#1.offset_27|)) (< (+ (* ~newsize~0 4) |v_ULTIMATE.start_expandArray_~b~0#1.offset_27|) 4)) (= ~i~0 1))) (<= 1 ~newsize~0) (<= 1 ~num~0))' at error location [2024-11-09 05:21:27,431 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:21:27,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:21:27,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-09 05:21:27,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896671737] [2024-11-09 05:21:27,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:21:27,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:21:27,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:21:27,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:21:27,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2024-11-09 05:21:27,434 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 13 states, 12 states have (on average 1.75) internal successors, (21), 13 states have internal predecessors, (21), 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) [2024-11-09 05:21:27,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:27,928 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2024-11-09 05:21:27,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 05:21:27,929 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.75) internal successors, (21), 13 states have internal predecessors, (21), 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 9 [2024-11-09 05:21:27,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:27,930 INFO L225 Difference]: With dead ends: 29 [2024-11-09 05:21:27,930 INFO L226 Difference]: Without dead ends: 29 [2024-11-09 05:21:27,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2024-11-09 05:21:27,932 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 20 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:27,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 6 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:21:27,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-09 05:21:27,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 22. [2024-11-09 05:21:27,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.45) internal successors, (29), 21 states have internal predecessors, (29), 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) [2024-11-09 05:21:27,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2024-11-09 05:21:27,936 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 29 transitions. Word has length 9 [2024-11-09 05:21:27,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:27,936 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 29 transitions. [2024-11-09 05:21:27,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.75) internal successors, (21), 13 states have internal predecessors, (21), 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) [2024-11-09 05:21:27,937 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2024-11-09 05:21:27,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 05:21:27,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:27,937 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:21:27,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 05:21:28,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:21:28,138 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:21:28,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:28,139 INFO L85 PathProgramCache]: Analyzing trace with hash -535495134, now seen corresponding path program 1 times [2024-11-09 05:21:28,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:28,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140703914] [2024-11-09 05:21:28,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:28,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:28,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:21:28,171 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:21:28,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:21:28,203 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 05:21:28,203 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:21:28,204 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (2 of 3 remaining) [2024-11-09 05:21:28,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 3 remaining) [2024-11-09 05:21:28,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 3 remaining) [2024-11-09 05:21:28,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 05:21:28,212 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:21:28,242 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:21:28,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:21:28 BoogieIcfgContainer [2024-11-09 05:21:28,246 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:21:28,247 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:21:28,248 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:21:28,248 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:21:28,249 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:21:21" (3/4) ... [2024-11-09 05:21:28,253 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 05:21:28,254 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:21:28,256 INFO L158 Benchmark]: Toolchain (without parser) took 7669.19ms. Allocated memory was 132.1MB in the beginning and 230.7MB in the end (delta: 98.6MB). Free memory was 92.8MB in the beginning and 144.0MB in the end (delta: -51.2MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2024-11-09 05:21:28,256 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 132.1MB. Free memory was 95.2MB in the beginning and 95.1MB in the end (delta: 34.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:21:28,257 INFO L158 Benchmark]: CACSL2BoogieTranslator took 617.40ms. Allocated memory is still 132.1MB. Free memory was 92.8MB in the beginning and 74.0MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 05:21:28,257 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.35ms. Allocated memory is still 132.1MB. Free memory was 74.0MB in the beginning and 72.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:21:28,258 INFO L158 Benchmark]: Boogie Preprocessor took 47.63ms. Allocated memory is still 132.1MB. Free memory was 72.2MB in the beginning and 70.7MB in the end (delta: 1.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 05:21:28,259 INFO L158 Benchmark]: RCFGBuilder took 669.68ms. Allocated memory was 132.1MB in the beginning and 190.8MB in the end (delta: 58.7MB). Free memory was 70.7MB in the beginning and 155.9MB in the end (delta: -85.2MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2024-11-09 05:21:28,259 INFO L158 Benchmark]: TraceAbstraction took 6253.31ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 154.9MB in the beginning and 145.1MB in the end (delta: 9.8MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. [2024-11-09 05:21:28,259 INFO L158 Benchmark]: Witness Printer took 7.96ms. Allocated memory is still 230.7MB. Free memory was 145.1MB in the beginning and 144.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:21:28,265 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 132.1MB. Free memory was 95.2MB in the beginning and 95.1MB in the end (delta: 34.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 617.40ms. Allocated memory is still 132.1MB. Free memory was 92.8MB in the beginning and 74.0MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.35ms. Allocated memory is still 132.1MB. Free memory was 74.0MB in the beginning and 72.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.63ms. Allocated memory is still 132.1MB. Free memory was 72.2MB in the beginning and 70.7MB in the end (delta: 1.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 669.68ms. Allocated memory was 132.1MB in the beginning and 190.8MB in the end (delta: 58.7MB). Free memory was 70.7MB in the beginning and 155.9MB in the end (delta: -85.2MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6253.31ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 154.9MB in the beginning and 145.1MB in the end (delta: 9.8MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. * Witness Printer took 7.96ms. Allocated memory is still 230.7MB. Free memory was 145.1MB in the beginning and 144.0MB in the end (delta: 1.0MB). 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: 525]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 525. Possible FailurePath: [L512] int num; [L513] int ind, newsize, i = 1; [L526] num = __VERIFIER_nondet_int() [L527] COND FALSE !(!(num > 0 && num < 100)) [L530] int *a = (int *)malloc(sizeof(int)); [L531] COND FALSE !(a == ((void *)0)) [L534] newsize = 0 [L535] CALL expandArray(a) [L515] int *a = (int *)arg; VAL [a={-1:0}, i=1, ind=0, newsize=0, num=1] [L516] COND FALSE !(newsize < num) VAL [a={-1:0}, i=1, ind=0, newsize=0, num=1] [L516] COND TRUE newsize < num [L517] newsize = newsize + 1 [L518] int *b = ((void *)0); [L519] EXPR, FCALL realloc(a, sizeof(int) * newsize) [L519] b = realloc(a, sizeof(int) * newsize) [L520] b[newsize - 1] = i [L521] a = b [L516] COND TRUE newsize < num VAL [a={-2:0}, i=1, ind=0, newsize=1, num=1] [L523] return 0; [L535] RET expandArray(a) [L536] return 0; VAL [\result=0, i=1, ind=0, newsize=1, num=1] - 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, 12 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6.2s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 178 IncrementalHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 32 mSDtfsCounter, 178 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=6, InterpolantAutomatonStates: 30, 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, 6 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 44 ConstructedInterpolants, 3 QuantifiedInterpolants, 449 SizeOfPredicates, 13 NumberOfNonLiveVariables, 84 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 0/9 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 [2024-11-09 05:21:28,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --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 165c3d31baf6e9e6eb3241886fc1e2aed511e6788979a2e699609d2c8b9e748b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:21:30,954 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:21:31,067 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2024-11-09 05:21:31,073 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:21:31,074 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:21:31,101 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:21:31,102 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:21:31,102 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:21:31,103 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:21:31,104 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:21:31,104 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:21:31,105 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:21:31,105 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:21:31,106 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:21:31,106 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:21:31,106 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:21:31,107 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 05:21:31,108 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 05:21:31,108 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:21:31,108 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:21:31,109 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:21:31,113 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:21:31,113 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:21:31,114 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 05:21:31,114 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 05:21:31,114 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 05:21:31,114 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:21:31,115 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:21:31,115 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 05:21:31,115 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:21:31,116 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 05:21:31,116 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:21:31,116 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:21:31,116 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:21:31,117 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:21:31,117 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 05:21:31,117 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:21:31,117 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:21:31,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:21:31,118 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:21:31,118 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:21:31,119 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 05:21:31,119 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 05:21:31,119 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:21:31,119 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:21:31,120 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 165c3d31baf6e9e6eb3241886fc1e2aed511e6788979a2e699609d2c8b9e748b [2024-11-09 05:21:31,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:21:31,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:21:31,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:21:31,617 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:21:31,617 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:21:31,620 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i Unable to find full path for "g++" [2024-11-09 05:21:34,017 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:21:34,295 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:21:34,296 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2024-11-09 05:21:34,314 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/data/a48c82ff5/0d97193c9f594beab55595f949ca8413/FLAG060588982 [2024-11-09 05:21:34,336 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/data/a48c82ff5/0d97193c9f594beab55595f949ca8413 [2024-11-09 05:21:34,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:21:34,341 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:21:34,343 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:21:34,343 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:21:34,349 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:21:34,350 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:21:34" (1/1) ... [2024-11-09 05:21:34,351 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25ff3651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:34, skipping insertion in model container [2024-11-09 05:21:34,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:21:34" (1/1) ... [2024-11-09 05:21:34,395 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:21:34,759 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:21:34,773 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:21:34,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:21:34,794 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:21:34,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:21:34,904 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:21:34,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:34 WrapperNode [2024-11-09 05:21:34,905 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:21:34,906 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:21:34,906 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:21:34,907 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:21:34,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:34" (1/1) ... [2024-11-09 05:21:34,941 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:34" (1/1) ... [2024-11-09 05:21:34,959 INFO L138 Inliner]: procedures = 118, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 48 [2024-11-09 05:21:34,960 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:21:34,961 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:21:34,961 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:21:34,961 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:21:34,971 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:34" (1/1) ... [2024-11-09 05:21:34,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:34" (1/1) ... [2024-11-09 05:21:34,975 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:34" (1/1) ... [2024-11-09 05:21:34,975 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:34" (1/1) ... [2024-11-09 05:21:34,983 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:34" (1/1) ... [2024-11-09 05:21:34,990 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:34" (1/1) ... [2024-11-09 05:21:34,993 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:34" (1/1) ... [2024-11-09 05:21:34,995 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:34" (1/1) ... [2024-11-09 05:21:35,003 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:21:35,004 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:21:35,005 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:21:35,006 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:21:35,007 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:34" (1/1) ... [2024-11-09 05:21:35,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:21:35,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:21:35,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:21:35,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:21:35,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 05:21:35,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:21:35,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 05:21:35,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:21:35,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:21:35,243 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:21:35,246 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:21:35,547 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-11-09 05:21:35,547 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:21:35,563 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:21:35,563 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:21:35,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:21:35 BoogieIcfgContainer [2024-11-09 05:21:35,564 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:21:35,566 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:21:35,566 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:21:35,569 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:21:35,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:21:34" (1/3) ... [2024-11-09 05:21:35,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734b640e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:21:35, skipping insertion in model container [2024-11-09 05:21:35,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:34" (2/3) ... [2024-11-09 05:21:35,571 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734b640e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:21:35, skipping insertion in model container [2024-11-09 05:21:35,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:21:35" (3/3) ... [2024-11-09 05:21:35,573 INFO L112 eAbstractionObserver]: Analyzing ICFG array-realloc-3.i [2024-11-09 05:21:35,590 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:21:35,590 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-09 05:21:35,639 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:21:35,647 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@11213c81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:21:35,647 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-09 05:21:35,652 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 17 states have internal predecessors, (22), 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) [2024-11-09 05:21:35,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 05:21:35,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:35,660 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 05:21:35,660 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:21:35,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:35,667 INFO L85 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2024-11-09 05:21:35,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:21:35,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349090087] [2024-11-09 05:21:35,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:35,682 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 [2024-11-09 05:21:35,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:21:35,686 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:21:35,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:21:35,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:35,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 05:21:35,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:21:35,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:21:35,816 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:21:35,817 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:21:35,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349090087] [2024-11-09 05:21:35,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [349090087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:35,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:21:35,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:21:35,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743563603] [2024-11-09 05:21:35,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:35,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:21:35,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:21:35,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:21:35,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:21:35,870 INFO L87 Difference]: Start difference. First operand has 18 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 17 states have internal predecessors, (22), 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 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:21:35,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:35,928 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2024-11-09 05:21:35,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:21:35,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-09 05:21:35,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:35,940 INFO L225 Difference]: With dead ends: 19 [2024-11-09 05:21:35,940 INFO L226 Difference]: Without dead ends: 16 [2024-11-09 05:21:35,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:21:35,952 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:35,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:21:35,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-09 05:21:35,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-09 05:21:35,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 15 states have internal predecessors, (19), 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) [2024-11-09 05:21:35,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2024-11-09 05:21:35,983 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 4 [2024-11-09 05:21:35,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:35,984 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2024-11-09 05:21:35,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:21:35,984 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2024-11-09 05:21:35,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 05:21:35,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:35,985 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 05:21:35,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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)] Forceful destruction successful, exit code 0 [2024-11-09 05:21:36,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:21:36,187 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:21:36,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:36,187 INFO L85 PathProgramCache]: Analyzing trace with hash 28695810, now seen corresponding path program 1 times [2024-11-09 05:21:36,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:21:36,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403637368] [2024-11-09 05:21:36,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:36,189 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 [2024-11-09 05:21:36,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:21:36,192 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:21:36,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:21:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:36,273 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 05:21:36,274 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:21:36,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:21:36,290 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:21:36,290 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:21:36,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403637368] [2024-11-09 05:21:36,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [403637368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:36,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:21:36,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:21:36,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167444162] [2024-11-09 05:21:36,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:36,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:21:36,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:21:36,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:21:36,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:21:36,298 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2024-11-09 05:21:36,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:36,312 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2024-11-09 05:21:36,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:21:36,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) Word has length 5 [2024-11-09 05:21:36,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:36,315 INFO L225 Difference]: With dead ends: 16 [2024-11-09 05:21:36,315 INFO L226 Difference]: Without dead ends: 16 [2024-11-09 05:21:36,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:21:36,317 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:36,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:21:36,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-09 05:21:36,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-09 05:21:36,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 15 states have internal predecessors, (18), 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) [2024-11-09 05:21:36,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2024-11-09 05:21:36,325 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 5 [2024-11-09 05:21:36,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:36,326 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2024-11-09 05:21:36,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2024-11-09 05:21:36,326 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-09 05:21:36,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 05:21:36,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:36,327 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:21:36,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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)] Ended with exit code 0 [2024-11-09 05:21:36,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:21:36,531 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:21:36,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:36,532 INFO L85 PathProgramCache]: Analyzing trace with hash 180087916, now seen corresponding path program 1 times [2024-11-09 05:21:36,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:21:36,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [686951010] [2024-11-09 05:21:36,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:36,534 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 [2024-11-09 05:21:36,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:21:36,535 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:21:36,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:21:36,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:36,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:21:36,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:21:36,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:21:36,733 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:21:36,734 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:21:36,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [686951010] [2024-11-09 05:21:36,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [686951010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:36,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:21:36,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:21:36,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93085549] [2024-11-09 05:21:36,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:36,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:21:36,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:21:36,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:21:36,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:21:36,744 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2024-11-09 05:21:36,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:36,808 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2024-11-09 05:21:36,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:21:36,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) Word has length 8 [2024-11-09 05:21:36,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:36,811 INFO L225 Difference]: With dead ends: 18 [2024-11-09 05:21:36,811 INFO L226 Difference]: Without dead ends: 18 [2024-11-09 05:21:36,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:21:36,813 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 16 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:36,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 22 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:21:36,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-09 05:21:36,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-09 05:21:36,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 17 states have internal predecessors, (20), 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) [2024-11-09 05:21:36,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2024-11-09 05:21:36,818 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 8 [2024-11-09 05:21:36,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:36,819 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2024-11-09 05:21:36,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2024-11-09 05:21:36,819 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2024-11-09 05:21:36,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 05:21:36,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:36,820 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:21:36,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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)] Ended with exit code 0 [2024-11-09 05:21:37,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:21:37,022 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:21:37,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:37,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1270674061, now seen corresponding path program 1 times [2024-11-09 05:21:37,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:21:37,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912592678] [2024-11-09 05:21:37,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:37,024 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 [2024-11-09 05:21:37,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:21:37,027 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:21:37,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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 (5)] Waiting until timeout for monitored process [2024-11-09 05:21:37,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:37,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:21:37,131 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:21:37,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:21:37,188 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:21:37,188 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:21:37,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912592678] [2024-11-09 05:21:37,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1912592678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:37,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:21:37,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:21:37,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601717773] [2024-11-09 05:21:37,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:37,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:21:37,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:21:37,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:21:37,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:21:37,195 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2024-11-09 05:21:37,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:37,241 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2024-11-09 05:21:37,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:21:37,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 9 [2024-11-09 05:21:37,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:37,243 INFO L225 Difference]: With dead ends: 19 [2024-11-09 05:21:37,243 INFO L226 Difference]: Without dead ends: 19 [2024-11-09 05:21:37,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:21:37,245 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:37,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:21:37,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-09 05:21:37,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-09 05:21:37,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.3125) internal successors, (21), 18 states have internal predecessors, (21), 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) [2024-11-09 05:21:37,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2024-11-09 05:21:37,249 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2024-11-09 05:21:37,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:37,249 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2024-11-09 05:21:37,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2024-11-09 05:21:37,250 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2024-11-09 05:21:37,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 05:21:37,250 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:37,250 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:21:37,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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 (5)] Ended with exit code 0 [2024-11-09 05:21:37,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:21:37,451 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:21:37,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:37,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1270675983, now seen corresponding path program 1 times [2024-11-09 05:21:37,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:21:37,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1925649380] [2024-11-09 05:21:37,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:37,453 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 [2024-11-09 05:21:37,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:21:37,456 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:21:37,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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 (6)] Waiting until timeout for monitored process [2024-11-09 05:21:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:37,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:21:37,531 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:21:37,576 INFO L378 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 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-09 05:21:37,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 05:21:37,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-11-09 05:21:37,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:21:37,631 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:21:37,631 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:21:37,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1925649380] [2024-11-09 05:21:37,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1925649380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:37,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:21:37,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:21:37,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372530890] [2024-11-09 05:21:37,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:37,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:21:37,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:21:37,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:21:37,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:21:37,637 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-11-09 05:21:37,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:37,723 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2024-11-09 05:21:37,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:21:37,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2024-11-09 05:21:37,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:37,725 INFO L225 Difference]: With dead ends: 18 [2024-11-09 05:21:37,726 INFO L226 Difference]: Without dead ends: 18 [2024-11-09 05:21:37,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:21:37,727 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:37,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 24 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:21:37,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-09 05:21:37,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-09 05:21:37,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 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) [2024-11-09 05:21:37,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2024-11-09 05:21:37,736 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2024-11-09 05:21:37,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:37,737 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2024-11-09 05:21:37,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-11-09 05:21:37,737 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2024-11-09 05:21:37,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 05:21:37,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:37,738 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:21:37,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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 (6)] Ended with exit code 0 [2024-11-09 05:21:37,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:21:37,939 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:21:37,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:37,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1270675984, now seen corresponding path program 1 times [2024-11-09 05:21:37,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:21:37,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [341152461] [2024-11-09 05:21:37,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:37,941 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 [2024-11-09 05:21:37,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:21:37,942 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:21:37,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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 (7)] Waiting until timeout for monitored process [2024-11-09 05:21:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:38,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:21:38,029 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:21:38,097 INFO L378 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 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 05:21:38,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:21:38,175 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:21:38,175 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:21:38,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [341152461] [2024-11-09 05:21:38,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [341152461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:38,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:21:38,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:21:38,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068330870] [2024-11-09 05:21:38,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:38,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:21:38,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:21:38,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:21:38,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:21:38,181 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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) [2024-11-09 05:21:38,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:38,309 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2024-11-09 05:21:38,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:21:38,311 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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 9 [2024-11-09 05:21:38,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:38,311 INFO L225 Difference]: With dead ends: 21 [2024-11-09 05:21:38,312 INFO L226 Difference]: Without dead ends: 21 [2024-11-09 05:21:38,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:21:38,313 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:38,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 27 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:21:38,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-09 05:21:38,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2024-11-09 05:21:38,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 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) [2024-11-09 05:21:38,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2024-11-09 05:21:38,320 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 9 [2024-11-09 05:21:38,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:38,322 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2024-11-09 05:21:38,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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) [2024-11-09 05:21:38,322 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2024-11-09 05:21:38,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 05:21:38,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:38,323 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:21:38,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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 (7)] Ended with exit code 0 [2024-11-09 05:21:38,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:21:38,525 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:21:38,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:38,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1594232662, now seen corresponding path program 1 times [2024-11-09 05:21:38,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:21:38,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1789373077] [2024-11-09 05:21:38,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:38,526 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 [2024-11-09 05:21:38,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:21:38,528 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:21:38,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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 (8)] Waiting until timeout for monitored process [2024-11-09 05:21:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:21:38,625 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:21:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:21:38,751 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 05:21:38,751 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:21:38,753 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (2 of 3 remaining) [2024-11-09 05:21:38,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 3 remaining) [2024-11-09 05:21:38,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 3 remaining) [2024-11-09 05:21:38,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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 (8)] Ended with exit code 0 [2024-11-09 05:21:38,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:21:38,961 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:21:38,988 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:21:38,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:21:38 BoogieIcfgContainer [2024-11-09 05:21:38,992 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:21:38,992 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:21:38,992 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:21:38,993 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:21:38,993 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:21:35" (3/4) ... [2024-11-09 05:21:38,996 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 05:21:38,998 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:21:38,999 INFO L158 Benchmark]: Toolchain (without parser) took 4657.00ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 46.1MB in the beginning and 40.9MB in the end (delta: 5.2MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2024-11-09 05:21:38,999 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 71.3MB. Free memory was 46.8MB in the beginning and 46.7MB in the end (delta: 92.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:21:39,000 INFO L158 Benchmark]: CACSL2BoogieTranslator took 562.78ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 45.9MB in the beginning and 63.2MB in the end (delta: -17.3MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2024-11-09 05:21:39,000 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.73ms. Allocated memory is still 94.4MB. Free memory was 63.2MB in the beginning and 61.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:21:39,000 INFO L158 Benchmark]: Boogie Preprocessor took 43.09ms. Allocated memory is still 94.4MB. Free memory was 61.5MB in the beginning and 60.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:21:39,001 INFO L158 Benchmark]: RCFGBuilder took 559.59ms. Allocated memory is still 94.4MB. Free memory was 59.8MB in the beginning and 70.3MB in the end (delta: -10.5MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2024-11-09 05:21:39,001 INFO L158 Benchmark]: TraceAbstraction took 3425.56ms. Allocated memory is still 94.4MB. Free memory was 69.6MB in the beginning and 40.9MB in the end (delta: 28.7MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2024-11-09 05:21:39,002 INFO L158 Benchmark]: Witness Printer took 5.67ms. Allocated memory is still 94.4MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:21:39,004 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 71.3MB. Free memory was 46.8MB in the beginning and 46.7MB in the end (delta: 92.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 562.78ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 45.9MB in the beginning and 63.2MB in the end (delta: -17.3MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.73ms. Allocated memory is still 94.4MB. Free memory was 63.2MB in the beginning and 61.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.09ms. Allocated memory is still 94.4MB. Free memory was 61.5MB in the beginning and 60.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 559.59ms. Allocated memory is still 94.4MB. Free memory was 59.8MB in the beginning and 70.3MB in the end (delta: -10.5MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3425.56ms. Allocated memory is still 94.4MB. Free memory was 69.6MB in the beginning and 40.9MB in the end (delta: 28.7MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * Witness Printer took 5.67ms. Allocated memory is still 94.4MB. Free memory is still 40.9MB. 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: 525]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 525. Possible FailurePath: [L512] int num; [L513] int ind, newsize, i = 1; VAL [i=1, ind=0, newsize=0, num=0] [L526] num = __VERIFIER_nondet_int() [L527] COND FALSE !(!(num > 0 && num < 100)) [L530] int *a = (int *)malloc(sizeof(int)); [L531] COND FALSE !(a == ((void *)0)) [L534] newsize = 0 [L535] CALL expandArray(a) [L515] int *a = (int *)arg; VAL [a={1:0}, i=1, ind=0, newsize=0, num=1] [L516] COND FALSE !(newsize < num) VAL [a={1:0}, i=1, ind=0, newsize=0, num=1] [L516] COND TRUE newsize < num [L517] newsize = newsize + 1 [L518] int *b = ((void *)0); [L519] EXPR, FCALL realloc(a, sizeof(int) * newsize) [L519] b = realloc(a, sizeof(int) * newsize) [L520] b[newsize - 1] = i VAL [b={1:0}, i=1, ind=0, newsize=1, num=1] [L521] a = b [L516] COND TRUE newsize < num VAL [a={1:0}, i=1, ind=0, newsize=1, num=1] [L523] return 0; VAL [a={1:0}, i=1, ind=0, newsize=1, num=1] [L535] RET expandArray(a) [L536] return 0; VAL [\result=0, i=1, ind=0, newsize=1, num=1] - 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, 18 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 191 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 101 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 121 IncrementalHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 90 mSDtfsCounter, 121 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=6, InterpolantAutomatonStates: 25, 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, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 116 SizeOfPredicates, 2 NumberOfNonLiveVariables, 245 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 05:21:39,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06469dc-a0e2-4405-863c-1e1d5ad18cca/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample