./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-examples/relax-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39348cf6-9bd4-417f-b692-dc5c6860112c/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39348cf6-9bd4-417f-b692-dc5c6860112c/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39348cf6-9bd4-417f-b692-dc5c6860112c/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39348cf6-9bd4-417f-b692-dc5c6860112c/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-examples/relax-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39348cf6-9bd4-417f-b692-dc5c6860112c/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39348cf6-9bd4-417f-b692-dc5c6860112c/bin/utaipan-verify-sOmjnqqW8E --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 4fcae0c4d0ca1fc30eac1578cd8b45001717e96b8c9c5f68d5df56e6c4fcd72c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:59:06,298 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:59:06,419 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39348cf6-9bd4-417f-b692-dc5c6860112c/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-14 03:59:06,427 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:59:06,427 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:59:06,472 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:59:06,474 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:59:06,474 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:59:06,474 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:59:06,475 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:59:06,475 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:59:06,475 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:59:06,475 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:59:06,475 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:59:06,475 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:59:06,476 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:59:06,476 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:59:06,476 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:59:06,478 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:59:06,478 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:59:06,478 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:59:06,478 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:59:06,479 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 03:59:06,479 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 03:59:06,479 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:59:06,479 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:59:06,479 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:59:06,479 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:59:06,479 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:59:06,480 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 03:59:06,480 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 03:59:06,480 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-14 03:59:06,480 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:59:06,480 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:59:06,480 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:59:06,480 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:59:06,480 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:59:06,480 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:59:06,481 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:59:06,481 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:59:06,481 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:59:06,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:59:06,482 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:59:06,482 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:59:06,482 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:59:06,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:59:06,483 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:59:06,483 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:59:06,483 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:59:06,483 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_39348cf6-9bd4-417f-b692-dc5c6860112c/bin/utaipan-verify-sOmjnqqW8E 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 -> 4fcae0c4d0ca1fc30eac1578cd8b45001717e96b8c9c5f68d5df56e6c4fcd72c [2024-11-14 03:59:06,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:59:06,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:59:06,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:59:06,902 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:59:06,902 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:59:06,904 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39348cf6-9bd4-417f-b692-dc5c6860112c/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/array-examples/relax-1.i Unable to find full path for "g++" [2024-11-14 03:59:08,964 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:59:09,385 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:59:09,387 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39348cf6-9bd4-417f-b692-dc5c6860112c/sv-benchmarks/c/array-examples/relax-1.i [2024-11-14 03:59:09,406 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39348cf6-9bd4-417f-b692-dc5c6860112c/bin/utaipan-verify-sOmjnqqW8E/data/d79e03b32/682f13a7fafd4be6a547423f3853d4d7/FLAGe36a8ceee [2024-11-14 03:59:09,430 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39348cf6-9bd4-417f-b692-dc5c6860112c/bin/utaipan-verify-sOmjnqqW8E/data/d79e03b32/682f13a7fafd4be6a547423f3853d4d7 [2024-11-14 03:59:09,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:59:09,435 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:59:09,438 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:59:09,438 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:59:09,443 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:59:09,444 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:59:09" (1/1) ... [2024-11-14 03:59:09,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f9fd4ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:09, skipping insertion in model container [2024-11-14 03:59:09,445 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:59:09" (1/1) ... [2024-11-14 03:59:09,495 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:59:09,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:59:09,977 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:59:10,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:59:10,074 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:59:10,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:10 WrapperNode [2024-11-14 03:59:10,075 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:59:10,076 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:59:10,076 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:59:10,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:59:10,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:10" (1/1) ... [2024-11-14 03:59:10,095 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:10" (1/1) ... [2024-11-14 03:59:10,122 INFO L138 Inliner]: procedures = 120, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 133 [2024-11-14 03:59:10,123 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:59:10,123 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:59:10,123 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:59:10,124 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:59:10,133 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:10" (1/1) ... [2024-11-14 03:59:10,134 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:10" (1/1) ... [2024-11-14 03:59:10,138 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:10" (1/1) ... [2024-11-14 03:59:10,138 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:10" (1/1) ... [2024-11-14 03:59:10,150 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:10" (1/1) ... [2024-11-14 03:59:10,155 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:10" (1/1) ... [2024-11-14 03:59:10,157 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:10" (1/1) ... [2024-11-14 03:59:10,158 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:10" (1/1) ... [2024-11-14 03:59:10,161 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:59:10,162 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:59:10,162 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:59:10,162 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:59:10,163 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:10" (1/1) ... [2024-11-14 03:59:10,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:59:10,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39348cf6-9bd4-417f-b692-dc5c6860112c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:59:10,204 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39348cf6-9bd4-417f-b692-dc5c6860112c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:59:10,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39348cf6-9bd4-417f-b692-dc5c6860112c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:59:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:59:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 03:59:10,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 03:59:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:59:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:59:10,228 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:59:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 03:59:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:59:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:59:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:59:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:59:10,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:59:10,349 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:59:10,351 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:59:10,836 INFO L? ?]: Removed 98 outVars from TransFormulas that were not future-live. [2024-11-14 03:59:10,836 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:59:10,970 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:59:10,973 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-14 03:59:10,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:59:10 BoogieIcfgContainer [2024-11-14 03:59:10,973 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:59:10,975 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:59:10,976 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:59:10,982 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:59:10,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:59:09" (1/3) ... [2024-11-14 03:59:10,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38308e98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:59:10, skipping insertion in model container [2024-11-14 03:59:10,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:10" (2/3) ... [2024-11-14 03:59:10,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38308e98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:59:10, skipping insertion in model container [2024-11-14 03:59:10,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:59:10" (3/3) ... [2024-11-14 03:59:10,986 INFO L112 eAbstractionObserver]: Analyzing ICFG relax-1.i [2024-11-14 03:59:11,002 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:59:11,005 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG relax-1.i that has 3 procedures, 83 locations, 1 initial locations, 3 loop locations, and 32 error locations. [2024-11-14 03:59:11,074 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:59:11,090 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;@489eb27b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:59:11,090 INFO L334 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2024-11-14 03:59:11,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 43 states have (on average 2.046511627906977) internal successors, (88), 78 states have internal predecessors, (88), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:59:11,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 03:59:11,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:59:11,103 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 03:59:11,103 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2024-11-14 03:59:11,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:59:11,107 INFO L85 PathProgramCache]: Analyzing trace with hash 7246422, now seen corresponding path program 1 times [2024-11-14 03:59:11,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:59:11,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60910631] [2024-11-14 03:59:11,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:59:11,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:59:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:59:11,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:59:11,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:59:11,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60910631] [2024-11-14 03:59:11,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60910631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:59:11,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:59:11,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:59:11,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457224016] [2024-11-14 03:59:11,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:59:11,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:59:11,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:59:11,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:59:11,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:59:11,457 INFO L87 Difference]: Start difference. First operand has 83 states, 43 states have (on average 2.046511627906977) internal successors, (88), 78 states have internal predecessors, (88), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:59:11,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:59:11,586 INFO L93 Difference]: Finished difference Result 81 states and 94 transitions. [2024-11-14 03:59:11,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:59:11,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-14 03:59:11,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:59:11,596 INFO L225 Difference]: With dead ends: 81 [2024-11-14 03:59:11,596 INFO L226 Difference]: Without dead ends: 80 [2024-11-14 03:59:11,598 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 [2024-11-14 03:59:11,601 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 11 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:59:11,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 126 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:59:11,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-14 03:59:11,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-14 03:59:11,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 42 states have (on average 1.9761904761904763) internal successors, (83), 75 states have internal predecessors, (83), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:59:11,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 93 transitions. [2024-11-14 03:59:11,642 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 93 transitions. Word has length 4 [2024-11-14 03:59:11,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:59:11,642 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 93 transitions. [2024-11-14 03:59:11,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:59:11,642 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 93 transitions. [2024-11-14 03:59:11,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 03:59:11,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:59:11,643 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 03:59:11,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:59:11,643 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2024-11-14 03:59:11,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:59:11,644 INFO L85 PathProgramCache]: Analyzing trace with hash 7246423, now seen corresponding path program 1 times [2024-11-14 03:59:11,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:59:11,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902427702] [2024-11-14 03:59:11,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:59:11,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:59:11,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:59:11,677 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:59:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:59:11,740 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 03:59:11,741 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:59:11,746 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 32 remaining) [2024-11-14 03:59:11,747 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 32 remaining) [2024-11-14 03:59:11,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 32 remaining) [2024-11-14 03:59:11,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 32 remaining) [2024-11-14 03:59:11,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 32 remaining) [2024-11-14 03:59:11,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 32 remaining) [2024-11-14 03:59:11,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 32 remaining) [2024-11-14 03:59:11,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 32 remaining) [2024-11-14 03:59:11,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 32 remaining) [2024-11-14 03:59:11,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 32 remaining) [2024-11-14 03:59:11,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 32 remaining) [2024-11-14 03:59:11,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 32 remaining) [2024-11-14 03:59:11,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 32 remaining) [2024-11-14 03:59:11,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 32 remaining) [2024-11-14 03:59:11,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 32 remaining) [2024-11-14 03:59:11,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 32 remaining) [2024-11-14 03:59:11,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 32 remaining) [2024-11-14 03:59:11,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 32 remaining) [2024-11-14 03:59:11,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 32 remaining) [2024-11-14 03:59:11,751 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 32 remaining) [2024-11-14 03:59:11,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 32 remaining) [2024-11-14 03:59:11,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 32 remaining) [2024-11-14 03:59:11,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 32 remaining) [2024-11-14 03:59:11,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 32 remaining) [2024-11-14 03:59:11,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE (7 of 32 remaining) [2024-11-14 03:59:11,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE (6 of 32 remaining) [2024-11-14 03:59:11,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE (5 of 32 remaining) [2024-11-14 03:59:11,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE (4 of 32 remaining) [2024-11-14 03:59:11,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE (3 of 32 remaining) [2024-11-14 03:59:11,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE (2 of 32 remaining) [2024-11-14 03:59:11,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (1 of 32 remaining) [2024-11-14 03:59:11,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 32 remaining) [2024-11-14 03:59:11,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:59:11,757 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-14 03:59:11,781 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:59:11,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:59:11 BoogieIcfgContainer [2024-11-14 03:59:11,786 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:59:11,786 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:59:11,786 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:59:11,787 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:59:11,791 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:59:10" (3/4) ... [2024-11-14 03:59:11,794 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-14 03:59:11,839 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39348cf6-9bd4-417f-b692-dc5c6860112c/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 03:59:11,839 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:59:11,841 INFO L158 Benchmark]: Toolchain (without parser) took 2405.45ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 54.2MB in the end (delta: 36.2MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2024-11-14 03:59:11,841 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 83.9MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:59:11,842 INFO L158 Benchmark]: CACSL2BoogieTranslator took 637.79ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 72.6MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:59:11,843 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.93ms. Allocated memory is still 117.4MB. Free memory was 72.6MB in the beginning and 70.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:59:11,844 INFO L158 Benchmark]: Boogie Preprocessor took 37.62ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 69.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:59:11,844 INFO L158 Benchmark]: RCFGBuilder took 811.60ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 39.5MB in the end (delta: 29.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 03:59:11,845 INFO L158 Benchmark]: TraceAbstraction took 810.35ms. Allocated memory is still 117.4MB. Free memory was 38.7MB in the beginning and 55.8MB in the end (delta: -17.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:59:11,846 INFO L158 Benchmark]: Witness Printer took 52.66ms. Allocated memory is still 117.4MB. Free memory was 55.8MB in the beginning and 54.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:59:11,847 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 83.9MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 637.79ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 72.6MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.93ms. Allocated memory is still 117.4MB. Free memory was 72.6MB in the beginning and 70.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.62ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 69.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 811.60ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 39.5MB in the end (delta: 29.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 810.35ms. Allocated memory is still 117.4MB. Free memory was 38.7MB in the beginning and 55.8MB in the end (delta: -17.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 52.66ms. Allocated memory is still 117.4MB. Free memory was 55.8MB in the beginning and 54.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L599] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L599] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L600] int *pat=malloc(sizeof(int)*pat_len); [L601] int *a=malloc(sizeof(int)*a_len); [L602] CALL is_relaxed_prefix(pat, pat_len, a, a_len) [L579] COND FALSE !(pat_length>a_length+1) [L581] int shift=0; [L582] int i=0; VAL [a={-1:0}, a_length=-2, i=0, pat={-2:0}, pat_length=-1073741824, shift=0] [L582] COND TRUE i