./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-memory-alloca/java_LogBuiltIn-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4bd271-01be-495a-a2ae-854c4331d038/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4bd271-01be-495a-a2ae-854c4331d038/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4bd271-01be-495a-a2ae-854c4331d038/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4bd271-01be-495a-a2ae-854c4331d038/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-memory-alloca/java_LogBuiltIn-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4bd271-01be-495a-a2ae-854c4331d038/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4bd271-01be-495a-a2ae-854c4331d038/bin/uautomizer-verify-jihMAELWvX --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c8ee3d6cfd19d89eb63acd84af9095ccede1106773f9e76a6ea9a3caed85cc30 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:38:14,279 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:38:14,365 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4bd271-01be-495a-a2ae-854c4331d038/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2024-11-08 16:38:14,370 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:38:14,370 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:38:14,394 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:38:14,395 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:38:14,395 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:38:14,396 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:38:14,396 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:38:14,397 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:38:14,397 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:38:14,398 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:38:14,398 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:38:14,398 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:38:14,399 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:38:14,399 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:38:14,400 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:38:14,400 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 16:38:14,401 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 16:38:14,401 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 16:38:14,401 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:38:14,402 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 16:38:14,402 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:38:14,403 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:38:14,403 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:38:14,403 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:38:14,404 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:38:14,404 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:38:14,404 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:38:14,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:38:14,405 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:38:14,405 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:38:14,406 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:38:14,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:38:14,406 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:38:14,407 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:38:14,407 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:38:14,407 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:38:14,408 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_1d4bd271-01be-495a-a2ae-854c4331d038/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4bd271-01be-495a-a2ae-854c4331d038/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8ee3d6cfd19d89eb63acd84af9095ccede1106773f9e76a6ea9a3caed85cc30 [2024-11-08 16:38:14,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:38:14,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:38:14,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:38:14,903 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:38:14,903 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:38:14,905 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4bd271-01be-495a-a2ae-854c4331d038/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/termination-memory-alloca/java_LogBuiltIn-alloca.i Unable to find full path for "g++" [2024-11-08 16:38:17,101 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:38:17,377 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:38:17,377 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4bd271-01be-495a-a2ae-854c4331d038/sv-benchmarks/c/termination-memory-alloca/java_LogBuiltIn-alloca.i [2024-11-08 16:38:17,396 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4bd271-01be-495a-a2ae-854c4331d038/bin/uautomizer-verify-jihMAELWvX/data/cc62af7c4/a407002849304777bf87dc4fca31fcf7/FLAG719106919 [2024-11-08 16:38:17,417 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4bd271-01be-495a-a2ae-854c4331d038/bin/uautomizer-verify-jihMAELWvX/data/cc62af7c4/a407002849304777bf87dc4fca31fcf7 [2024-11-08 16:38:17,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:38:17,422 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:38:17,424 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:38:17,424 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:38:17,435 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:38:17,436 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:38:17" (1/1) ... [2024-11-08 16:38:17,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@391aa778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:38:17, skipping insertion in model container [2024-11-08 16:38:17,440 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:38:17" (1/1) ... [2024-11-08 16:38:17,502 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:38:17,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:38:18,013 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:38:18,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:38:18,120 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:38:18,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:38:18 WrapperNode [2024-11-08 16:38:18,121 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:38:18,122 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:38:18,123 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:38:18,123 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:38:18,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:38:18" (1/1) ... [2024-11-08 16:38:18,143 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:38:18" (1/1) ... [2024-11-08 16:38:18,166 INFO L138 Inliner]: procedures = 111, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2024-11-08 16:38:18,166 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:38:18,167 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:38:18,167 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:38:18,167 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:38:18,182 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:38:18" (1/1) ... [2024-11-08 16:38:18,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:38:18" (1/1) ... [2024-11-08 16:38:18,185 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:38:18" (1/1) ... [2024-11-08 16:38:18,206 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [4, 4]. 50 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0]. The 4 writes are split as follows [2, 2]. [2024-11-08 16:38:18,206 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:38:18" (1/1) ... [2024-11-08 16:38:18,206 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:38:18" (1/1) ... [2024-11-08 16:38:18,211 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:38:18" (1/1) ... [2024-11-08 16:38:18,215 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:38:18" (1/1) ... [2024-11-08 16:38:18,217 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:38:18" (1/1) ... [2024-11-08 16:38:18,218 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:38:18" (1/1) ... [2024-11-08 16:38:18,220 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:38:18,221 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:38:18,222 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:38:18,222 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:38:18,223 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:38:18" (1/1) ... [2024-11-08 16:38:18,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:38:18,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4bd271-01be-495a-a2ae-854c4331d038/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:38:18,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4bd271-01be-495a-a2ae-854c4331d038/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:38:18,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4bd271-01be-495a-a2ae-854c4331d038/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:38:18,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 16:38:18,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 16:38:18,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 16:38:18,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 16:38:18,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 16:38:18,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 16:38:18,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:38:18,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:38:18,444 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:38:18,447 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:38:18,665 INFO L? ?]: Removed 39 outVars from TransFormulas that were not future-live. [2024-11-08 16:38:18,666 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:38:18,692 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:38:18,693 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 16:38:18,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:38:18 BoogieIcfgContainer [2024-11-08 16:38:18,694 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:38:18,700 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:38:18,701 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:38:18,705 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:38:18,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:38:17" (1/3) ... [2024-11-08 16:38:18,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74536ac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:38:18, skipping insertion in model container [2024-11-08 16:38:18,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:38:18" (2/3) ... [2024-11-08 16:38:18,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74536ac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:38:18, skipping insertion in model container [2024-11-08 16:38:18,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:38:18" (3/3) ... [2024-11-08 16:38:18,708 INFO L112 eAbstractionObserver]: Analyzing ICFG java_LogBuiltIn-alloca.i [2024-11-08 16:38:18,726 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:38:18,726 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2024-11-08 16:38:18,775 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:38:18,782 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=PETRI_NET, 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;@320d9c06, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:38:18,782 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-08 16:38:18,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 35 states have internal predecessors, (37), 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) [2024-11-08 16:38:18,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-08 16:38:18,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:38:18,792 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-08 16:38:18,793 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-11-08 16:38:18,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:38:18,799 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2024-11-08 16:38:18,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:38:18,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23900358] [2024-11-08 16:38:18,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:18,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:38:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:19,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:19,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:38:19,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23900358] [2024-11-08 16:38:19,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23900358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:38:19,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:38:19,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:38:19,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519665120] [2024-11-08 16:38:19,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:38:19,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:38:19,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:38:19,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:38:19,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:38:19,207 INFO L87 Difference]: Start difference. First operand has 36 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 35 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:38:19,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:38:19,291 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2024-11-08 16:38:19,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:38:19,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-08 16:38:19,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:38:19,306 INFO L225 Difference]: With dead ends: 32 [2024-11-08 16:38:19,306 INFO L226 Difference]: Without dead ends: 30 [2024-11-08 16:38:19,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:38:19,315 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 21 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:38:19,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 16 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:38:19,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-08 16:38:19,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-08 16:38:19,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 29 states have internal predecessors, (30), 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) [2024-11-08 16:38:19,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2024-11-08 16:38:19,351 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 3 [2024-11-08 16:38:19,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:38:19,351 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2024-11-08 16:38:19,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:38:19,352 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2024-11-08 16:38:19,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-08 16:38:19,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:38:19,353 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-08 16:38:19,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:38:19,353 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-11-08 16:38:19,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:38:19,354 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-11-08 16:38:19,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:38:19,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523198178] [2024-11-08 16:38:19,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:19,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:38:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:19,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:19,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:38:19,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523198178] [2024-11-08 16:38:19,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523198178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:38:19,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:38:19,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:38:19,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942872286] [2024-11-08 16:38:19,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:38:19,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:38:19,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:38:19,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:38:19,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:38:19,631 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:38:19,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:38:19,680 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2024-11-08 16:38:19,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:38:19,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-08 16:38:19,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:38:19,682 INFO L225 Difference]: With dead ends: 26 [2024-11-08 16:38:19,683 INFO L226 Difference]: Without dead ends: 26 [2024-11-08 16:38:19,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:38:19,685 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 22 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:38:19,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 16 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:38:19,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-08 16:38:19,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-08 16:38:19,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 25 states have internal predecessors, (26), 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) [2024-11-08 16:38:19,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2024-11-08 16:38:19,695 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 3 [2024-11-08 16:38:19,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:38:19,696 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2024-11-08 16:38:19,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:38:19,696 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2024-11-08 16:38:19,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-08 16:38:19,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:38:19,697 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-08 16:38:19,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:38:19,697 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-11-08 16:38:19,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:38:19,698 INFO L85 PathProgramCache]: Analyzing trace with hash 925543, now seen corresponding path program 1 times [2024-11-08 16:38:19,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:38:19,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896889465] [2024-11-08 16:38:19,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:19,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:38:19,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:19,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:19,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:38:19,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896889465] [2024-11-08 16:38:19,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896889465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:38:19,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:38:19,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:38:19,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106174392] [2024-11-08 16:38:19,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:38:19,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:38:19,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:38:19,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:38:19,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:38:19,818 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. 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) [2024-11-08 16:38:19,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:38:19,879 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2024-11-08 16:38:19,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:38:19,880 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 [2024-11-08 16:38:19,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:38:19,881 INFO L225 Difference]: With dead ends: 22 [2024-11-08 16:38:19,881 INFO L226 Difference]: Without dead ends: 22 [2024-11-08 16:38:19,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:38:19,884 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:38:19,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 10 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:38:19,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-08 16:38:19,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-11-08 16:38:19,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 21 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) [2024-11-08 16:38:19,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2024-11-08 16:38:19,893 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 4 [2024-11-08 16:38:19,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:38:19,895 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2024-11-08 16:38:19,895 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) [2024-11-08 16:38:19,896 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2024-11-08 16:38:19,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-08 16:38:19,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:38:19,896 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-08 16:38:19,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:38:19,897 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-11-08 16:38:19,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:38:19,898 INFO L85 PathProgramCache]: Analyzing trace with hash 925544, now seen corresponding path program 1 times [2024-11-08 16:38:19,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:38:19,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54976663] [2024-11-08 16:38:19,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:19,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:38:19,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:20,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:20,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:38:20,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54976663] [2024-11-08 16:38:20,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54976663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:38:20,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:38:20,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:38:20,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952441996] [2024-11-08 16:38:20,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:38:20,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:38:20,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:38:20,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:38:20,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:38:20,035 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. 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) [2024-11-08 16:38:20,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:38:20,090 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2024-11-08 16:38:20,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:38:20,091 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 [2024-11-08 16:38:20,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:38:20,092 INFO L225 Difference]: With dead ends: 18 [2024-11-08 16:38:20,092 INFO L226 Difference]: Without dead ends: 18 [2024-11-08 16:38:20,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:38:20,095 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 11 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:38:20,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 13 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:38:20,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-08 16:38:20,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-08 16:38:20,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 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) [2024-11-08 16:38:20,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2024-11-08 16:38:20,103 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 4 [2024-11-08 16:38:20,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:38:20,103 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2024-11-08 16:38:20,104 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) [2024-11-08 16:38:20,104 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2024-11-08 16:38:20,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-08 16:38:20,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:38:20,105 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:38:20,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:38:20,105 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-11-08 16:38:20,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:38:20,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1207048016, now seen corresponding path program 1 times [2024-11-08 16:38:20,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:38:20,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625047004] [2024-11-08 16:38:20,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:20,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:38:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:20,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:20,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:38:20,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625047004] [2024-11-08 16:38:20,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625047004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:38:20,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:38:20,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:38:20,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539944025] [2024-11-08 16:38:20,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:38:20,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:38:20,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:38:20,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:38:20,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:38:20,361 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-08 16:38:20,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:38:20,397 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2024-11-08 16:38:20,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:38:20,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2024-11-08 16:38:20,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:38:20,399 INFO L225 Difference]: With dead ends: 17 [2024-11-08 16:38:20,399 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 16:38:20,400 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 [2024-11-08 16:38:20,401 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 8 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:38:20,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 13 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:38:20,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 16:38:20,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 16:38:20,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:38:20,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 16:38:20,403 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2024-11-08 16:38:20,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:38:20,404 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 16:38:20,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-08 16:38:20,404 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 16:38:20,404 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 16:38:20,407 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 17 remaining) [2024-11-08 16:38:20,408 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 17 remaining) [2024-11-08 16:38:20,408 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 17 remaining) [2024-11-08 16:38:20,408 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 17 remaining) [2024-11-08 16:38:20,409 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 17 remaining) [2024-11-08 16:38:20,409 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 17 remaining) [2024-11-08 16:38:20,409 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 17 remaining) [2024-11-08 16:38:20,409 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 17 remaining) [2024-11-08 16:38:20,410 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 17 remaining) [2024-11-08 16:38:20,410 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 17 remaining) [2024-11-08 16:38:20,410 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 17 remaining) [2024-11-08 16:38:20,411 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 17 remaining) [2024-11-08 16:38:20,411 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 17 remaining) [2024-11-08 16:38:20,411 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 17 remaining) [2024-11-08 16:38:20,411 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 17 remaining) [2024-11-08 16:38:20,412 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 17 remaining) [2024-11-08 16:38:20,412 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK (0 of 17 remaining) [2024-11-08 16:38:20,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:38:20,416 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-08 16:38:20,418 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 16:38:20,422 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:38:20 BoogieIcfgContainer [2024-11-08 16:38:20,422 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 16:38:20,423 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 16:38:20,423 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 16:38:20,423 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 16:38:20,425 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:38:18" (3/4) ... [2024-11-08 16:38:20,428 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 16:38:20,439 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-08 16:38:20,439 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 16:38:20,440 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-08 16:38:20,440 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 16:38:20,536 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4bd271-01be-495a-a2ae-854c4331d038/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 16:38:20,537 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4bd271-01be-495a-a2ae-854c4331d038/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 16:38:20,537 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 16:38:20,537 INFO L158 Benchmark]: Toolchain (without parser) took 3115.47ms. Allocated memory is still 155.2MB. Free memory was 117.0MB in the beginning and 93.2MB in the end (delta: 23.9MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2024-11-08 16:38:20,538 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory was 78.4MB in the beginning and 78.3MB in the end (delta: 99.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:38:20,538 INFO L158 Benchmark]: CACSL2BoogieTranslator took 697.60ms. Allocated memory is still 155.2MB. Free memory was 116.3MB in the beginning and 114.1MB in the end (delta: 2.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 16:38:20,538 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.13ms. Allocated memory is still 155.2MB. Free memory was 114.1MB in the beginning and 112.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:38:20,539 INFO L158 Benchmark]: Boogie Preprocessor took 53.60ms. Allocated memory is still 155.2MB. Free memory was 112.6MB in the beginning and 110.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:38:20,539 INFO L158 Benchmark]: RCFGBuilder took 474.00ms. Allocated memory is still 155.2MB. Free memory was 110.6MB in the beginning and 95.9MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 16:38:20,541 INFO L158 Benchmark]: TraceAbstraction took 1721.84ms. Allocated memory is still 155.2MB. Free memory was 95.3MB in the beginning and 97.4MB in the end (delta: -2.1MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. [2024-11-08 16:38:20,542 INFO L158 Benchmark]: Witness Printer took 114.11ms. Allocated memory is still 155.2MB. Free memory was 97.4MB in the beginning and 93.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 16:38:20,543 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory was 78.4MB in the beginning and 78.3MB in the end (delta: 99.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 697.60ms. Allocated memory is still 155.2MB. Free memory was 116.3MB in the beginning and 114.1MB in the end (delta: 2.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.13ms. Allocated memory is still 155.2MB. Free memory was 114.1MB in the beginning and 112.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.60ms. Allocated memory is still 155.2MB. Free memory was 112.6MB in the beginning and 110.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 474.00ms. Allocated memory is still 155.2MB. Free memory was 110.6MB in the beginning and 95.9MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1721.84ms. Allocated memory is still 155.2MB. Free memory was 95.3MB in the beginning and 97.4MB in the end (delta: -2.1MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. * Witness Printer took 114.11ms. Allocated memory is still 155.2MB. Free memory was 97.4MB in the beginning and 93.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 559]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 17 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 68 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 57 mSDtfsCounter, 92 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 16, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 137 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 17 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-08 16:38:20,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4bd271-01be-495a-a2ae-854c4331d038/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE