./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-memory-alloca/ex3a-alloca.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b04762-096f-4689-8b88-920d444effed/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b04762-096f-4689-8b88-920d444effed/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b04762-096f-4689-8b88-920d444effed/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b04762-096f-4689-8b88-920d444effed/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-memory-alloca/ex3a-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b04762-096f-4689-8b88-920d444effed/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b04762-096f-4689-8b88-920d444effed/bin/uautomizer-verify-84ZbGMXZE1 --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 a5b1197714500d659d0acf4ebb2204b824a1c828702d044651e5c066ddbe97af
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 12:43:09,509 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 12:43:09,568 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b04762-096f-4689-8b88-920d444effed/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf
[2024-12-02 12:43:09,573 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 12:43:09,574 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 12:43:09,595 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 12:43:09,595 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 12:43:09,596 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 12:43:09,596 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 12:43:09,596 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 12:43:09,596 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 12:43:09,596 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 12:43:09,597 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 12:43:09,597 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 12:43:09,597 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 12:43:09,597 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 12:43:09,597 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 12:43:09,597 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 12:43:09,597 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-12-02 12:43:09,597 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-12-02 12:43:09,597 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-12-02 12:43:09,597 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 12:43:09,597 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-12-02 12:43:09,597 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 12:43:09,598 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 12:43:09,598 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 12:43:09,598 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 12:43:09,598 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 12:43:09,598 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 12:43:09,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 12:43:09,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:43:09,598 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 12:43:09,598 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 12:43:09,598 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 12:43:09,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 12:43:09,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:43:09,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 12:43:09,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 12:43:09,599 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 12:43:09,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 12:43:09,599 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 12:43:09,599 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 12:43:09,599 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 12:43:09,599 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 12:43:09,599 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
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_00b04762-096f-4689-8b88-920d444effed/bin/uautomizer-verify-84ZbGMXZE1
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 -> a5b1197714500d659d0acf4ebb2204b824a1c828702d044651e5c066ddbe97af
[2024-12-02 12:43:09,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 12:43:09,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 12:43:09,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 12:43:09,838 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 12:43:09,839 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 12:43:09,840 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b04762-096f-4689-8b88-920d444effed/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/termination-memory-alloca/ex3a-alloca.i
[2024-12-02 12:43:12,500 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b04762-096f-4689-8b88-920d444effed/bin/uautomizer-verify-84ZbGMXZE1/data/d4ff5d388/ea039407d6104a7191eb4a512e8c9118/FLAGcef277c23
[2024-12-02 12:43:12,718 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 12:43:12,718 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b04762-096f-4689-8b88-920d444effed/sv-benchmarks/c/termination-memory-alloca/ex3a-alloca.i
[2024-12-02 12:43:12,728 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b04762-096f-4689-8b88-920d444effed/bin/uautomizer-verify-84ZbGMXZE1/data/d4ff5d388/ea039407d6104a7191eb4a512e8c9118/FLAGcef277c23
[2024-12-02 12:43:13,083 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b04762-096f-4689-8b88-920d444effed/bin/uautomizer-verify-84ZbGMXZE1/data/d4ff5d388/ea039407d6104a7191eb4a512e8c9118
[2024-12-02 12:43:13,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 12:43:13,086 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 12:43:13,087 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 12:43:13,087 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 12:43:13,091 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 12:43:13,092 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:43:13" (1/1) ...
[2024-12-02 12:43:13,092 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7633aa6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:13, skipping insertion in model container
[2024-12-02 12:43:13,093 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:43:13" (1/1) ...
[2024-12-02 12:43:13,118 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 12:43:13,336 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 12:43:13,347 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 12:43:13,380 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 12:43:13,404 INFO L204 MainTranslator]: Completed translation
[2024-12-02 12:43:13,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:13 WrapperNode
[2024-12-02 12:43:13,404 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 12:43:13,405 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 12:43:13,405 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 12:43:13,406 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 12:43:13,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:13" (1/1) ...
[2024-12-02 12:43:13,421 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:13" (1/1) ...
[2024-12-02 12:43:13,436 INFO L138 Inliner]: procedures = 111, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56
[2024-12-02 12:43:13,437 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 12:43:13,437 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 12:43:13,437 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 12:43:13,437 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 12:43:13,445 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:13" (1/1) ...
[2024-12-02 12:43:13,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:13" (1/1) ...
[2024-12-02 12:43:13,447 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:13" (1/1) ...
[2024-12-02 12:43:13,458 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [6, 4]. 60 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].
[2024-12-02 12:43:13,459 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:13" (1/1) ...
[2024-12-02 12:43:13,459 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:13" (1/1) ...
[2024-12-02 12:43:13,462 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:13" (1/1) ...
[2024-12-02 12:43:13,463 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:13" (1/1) ...
[2024-12-02 12:43:13,466 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:13" (1/1) ...
[2024-12-02 12:43:13,467 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:13" (1/1) ...
[2024-12-02 12:43:13,468 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:13" (1/1) ...
[2024-12-02 12:43:13,469 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 12:43:13,470 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 12:43:13,470 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 12:43:13,470 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 12:43:13,471 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:13" (1/1) ...
[2024-12-02 12:43:13,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:43:13,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b04762-096f-4689-8b88-920d444effed/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:43:13,502 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b04762-096f-4689-8b88-920d444effed/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 12:43:13,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b04762-096f-4689-8b88-920d444effed/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 12:43:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-12-02 12:43:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-12-02 12:43:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-12-02 12:43:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-12-02 12:43:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-12-02 12:43:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-12-02 12:43:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 12:43:13,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 12:43:13,610 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 12:43:13,612 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 12:43:13,752 INFO L? ?]: Removed 48 outVars from TransFormulas that were not future-live.
[2024-12-02 12:43:13,752 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 12:43:13,760 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 12:43:13,760 INFO L312 CfgBuilder]: Removed 1 assume(true) statements.
[2024-12-02 12:43:13,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:43:13 BoogieIcfgContainer
[2024-12-02 12:43:13,760 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 12:43:13,762 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 12:43:13,762 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 12:43:13,765 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 12:43:13,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:43:13" (1/3) ...
[2024-12-02 12:43:13,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5daf97d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:43:13, skipping insertion in model container
[2024-12-02 12:43:13,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:13" (2/3) ...
[2024-12-02 12:43:13,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5daf97d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:43:13, skipping insertion in model container
[2024-12-02 12:43:13,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:43:13" (3/3) ...
[2024-12-02 12:43:13,767 INFO L128 eAbstractionObserver]: Analyzing ICFG ex3a-alloca.i
[2024-12-02 12:43:13,777 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 12:43:13,779 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ex3a-alloca.i that has 1 procedures, 44 locations, 1 initial locations, 1 loop locations, and 21 error locations.
[2024-12-02 12:43:13,808 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 12:43:13,818 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;@3603f725, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 12:43:13,818 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations.
[2024-12-02 12:43:13,821 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 22 states have (on average 2.090909090909091) internal successors, (46), 43 states have internal predecessors, (46), 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)
[2024-12-02 12:43:13,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-12-02 12:43:13,824 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:43:13,824 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-12-02 12:43:13,825 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] ===
[2024-12-02 12:43:13,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:43:13,829 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times
[2024-12-02 12:43:13,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:43:13,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001322416]
[2024-12-02 12:43:13,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:43:13,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:43:13,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:43:14,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:43:14,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:43:14,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001322416]
[2024-12-02 12:43:14,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001322416] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:43:14,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:43:14,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 12:43:14,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307766085]
[2024-12-02 12:43:14,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:43:14,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 12:43:14,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:43:14,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 12:43:14,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 12:43:14,062 INFO L87 Difference]: Start difference. First operand has 44 states, 22 states have (on average 2.090909090909091) internal successors, (46), 43 states have internal predecessors, (46), 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)
[2024-12-02 12:43:14,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:43:14,133 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions.
[2024-12-02 12:43:14,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 12:43:14,135 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
[2024-12-02 12:43:14,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:43:14,148 INFO L225 Difference]: With dead ends: 38
[2024-12-02 12:43:14,148 INFO L226 Difference]: Without dead ends: 36
[2024-12-02 12:43:14,150 INFO L434 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
[2024-12-02 12:43:14,153 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 26 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 12:43:14,153 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 19 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 12:43:14,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states.
[2024-12-02 12:43:14,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36.
[2024-12-02 12:43:14,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 21 states have (on average 1.7619047619047619) 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)
[2024-12-02 12:43:14,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions.
[2024-12-02 12:43:14,180 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 3
[2024-12-02 12:43:14,181 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:43:14,181 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions.
[2024-12-02 12:43:14,181 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)
[2024-12-02 12:43:14,181 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions.
[2024-12-02 12:43:14,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-12-02 12:43:14,181 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:43:14,181 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-12-02 12:43:14,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 12:43:14,182 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] ===
[2024-12-02 12:43:14,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:43:14,183 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times
[2024-12-02 12:43:14,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:43:14,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031954591]
[2024-12-02 12:43:14,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:43:14,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:43:14,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:43:14,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:43:14,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:43:14,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031954591]
[2024-12-02 12:43:14,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031954591] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:43:14,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:43:14,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 12:43:14,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236061786]
[2024-12-02 12:43:14,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:43:14,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 12:43:14,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:43:14,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 12:43:14,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 12:43:14,329 INFO L87 Difference]: Start difference. First operand 36 states and 37 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)
[2024-12-02 12:43:14,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:43:14,370 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions.
[2024-12-02 12:43:14,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 12:43:14,371 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
[2024-12-02 12:43:14,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:43:14,371 INFO L225 Difference]: With dead ends: 30
[2024-12-02 12:43:14,371 INFO L226 Difference]: Without dead ends: 30
[2024-12-02 12:43:14,372 INFO L434 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
[2024-12-02 12:43:14,373 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 27 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 12:43:14,373 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 19 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 12:43:14,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2024-12-02 12:43:14,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30.
[2024-12-02 12:43:14,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 29 states have internal predecessors, (31), 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)
[2024-12-02 12:43:14,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions.
[2024-12-02 12:43:14,377 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 3
[2024-12-02 12:43:14,377 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:43:14,377 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions.
[2024-12-02 12:43:14,377 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)
[2024-12-02 12:43:14,378 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions.
[2024-12-02 12:43:14,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2024-12-02 12:43:14,378 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:43:14,378 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2024-12-02 12:43:14,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 12:43:14,378 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] ===
[2024-12-02 12:43:14,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:43:14,379 INFO L85 PathProgramCache]: Analyzing trace with hash 925543, now seen corresponding path program 1 times
[2024-12-02 12:43:14,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:43:14,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439267884]
[2024-12-02 12:43:14,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:43:14,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:43:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:43:14,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:43:14,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:43:14,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439267884]
[2024-12-02 12:43:14,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439267884] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:43:14,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:43:14,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 12:43:14,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326894761]
[2024-12-02 12:43:14,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:43:14,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 12:43:14,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:43:14,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 12:43:14,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 12:43:14,437 INFO L87 Difference]: Start difference. First operand 30 states and 31 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)
[2024-12-02 12:43:14,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:43:14,477 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions.
[2024-12-02 12:43:14,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 12:43:14,478 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
[2024-12-02 12:43:14,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:43:14,478 INFO L225 Difference]: With dead ends: 26
[2024-12-02 12:43:14,478 INFO L226 Difference]: Without dead ends: 26
[2024-12-02 12:43:14,479 INFO L434 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
[2024-12-02 12:43:14,479 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 12:43:14,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 13 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 12:43:14,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states.
[2024-12-02 12:43:14,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26.
[2024-12-02 12:43:14,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 25 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:43:14,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions.
[2024-12-02 12:43:14,483 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 4
[2024-12-02 12:43:14,483 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:43:14,483 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions.
[2024-12-02 12:43:14,483 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)
[2024-12-02 12:43:14,483 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions.
[2024-12-02 12:43:14,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2024-12-02 12:43:14,484 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:43:14,484 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2024-12-02 12:43:14,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 12:43:14,484 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] ===
[2024-12-02 12:43:14,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:43:14,485 INFO L85 PathProgramCache]: Analyzing trace with hash 925544, now seen corresponding path program 1 times
[2024-12-02 12:43:14,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:43:14,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245637187]
[2024-12-02 12:43:14,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:43:14,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:43:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:43:14,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:43:14,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:43:14,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245637187]
[2024-12-02 12:43:14,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245637187] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:43:14,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:43:14,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 12:43:14,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952308171]
[2024-12-02 12:43:14,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:43:14,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 12:43:14,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:43:14,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 12:43:14,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 12:43:14,560 INFO L87 Difference]: Start difference. First operand 26 states and 27 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)
[2024-12-02 12:43:14,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:43:14,585 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions.
[2024-12-02 12:43:14,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 12:43:14,586 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
[2024-12-02 12:43:14,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:43:14,586 INFO L225 Difference]: With dead ends: 22
[2024-12-02 12:43:14,586 INFO L226 Difference]: Without dead ends: 22
[2024-12-02 12:43:14,587 INFO L434 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
[2024-12-02 12:43:14,587 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 16 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 12:43:14,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 16 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 12:43:14,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2024-12-02 12:43:14,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22.
[2024-12-02 12:43:14,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 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)
[2024-12-02 12:43:14,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions.
[2024-12-02 12:43:14,590 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 4
[2024-12-02 12:43:14,590 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:43:14,590 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions.
[2024-12-02 12:43:14,590 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)
[2024-12-02 12:43:14,591 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions.
[2024-12-02 12:43:14,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-12-02 12:43:14,591 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:43:14,591 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:43:14,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-12-02 12:43:14,591 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] ===
[2024-12-02 12:43:14,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:43:14,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1853721196, now seen corresponding path program 1 times
[2024-12-02 12:43:14,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:43:14,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408287508]
[2024-12-02 12:43:14,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:43:14,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:43:14,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:43:14,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:43:14,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:43:14,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408287508]
[2024-12-02 12:43:14,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408287508] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:43:14,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:43:14,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 12:43:14,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447698436]
[2024-12-02 12:43:14,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:43:14,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 12:43:14,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:43:14,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 12:43:14,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 12:43:14,731 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:43:14,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:43:14,768 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions.
[2024-12-02 12:43:14,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 12:43:14,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12
[2024-12-02 12:43:14,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:43:14,768 INFO L225 Difference]: With dead ends: 21
[2024-12-02 12:43:14,768 INFO L226 Difference]: Without dead ends: 0
[2024-12-02 12:43:14,769 INFO L434 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
[2024-12-02 12:43:14,769 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 11 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 12:43:14,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 19 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 12:43:14,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-12-02 12:43:14,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-12-02 12:43:14,770 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)
[2024-12-02 12:43:14,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-12-02 12:43:14,771 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12
[2024-12-02 12:43:14,771 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:43:14,771 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-12-02 12:43:14,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:43:14,771 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-12-02 12:43:14,771 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-12-02 12:43:14,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 21 remaining)
[2024-12-02 12:43:14,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 21 remaining)
[2024-12-02 12:43:14,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 21 remaining)
[2024-12-02 12:43:14,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 21 remaining)
[2024-12-02 12:43:14,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 21 remaining)
[2024-12-02 12:43:14,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 21 remaining)
[2024-12-02 12:43:14,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 21 remaining)
[2024-12-02 12:43:14,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 21 remaining)
[2024-12-02 12:43:14,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 21 remaining)
[2024-12-02 12:43:14,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 21 remaining)
[2024-12-02 12:43:14,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 21 remaining)
[2024-12-02 12:43:14,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 21 remaining)
[2024-12-02 12:43:14,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 21 remaining)
[2024-12-02 12:43:14,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 21 remaining)
[2024-12-02 12:43:14,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 21 remaining)
[2024-12-02 12:43:14,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 21 remaining)
[2024-12-02 12:43:14,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 21 remaining)
[2024-12-02 12:43:14,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 21 remaining)
[2024-12-02 12:43:14,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 21 remaining)
[2024-12-02 12:43:14,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 21 remaining)
[2024-12-02 12:43:14,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK (0 of 21 remaining)
[2024-12-02 12:43:14,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-12-02 12:43:14,779 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2024-12-02 12:43:14,781 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 12:43:14,784 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:43:14 BoogieIcfgContainer
[2024-12-02 12:43:14,784 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 12:43:14,785 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 12:43:14,785 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 12:43:14,785 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 12:43:14,786 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:43:13" (3/4) ...
[2024-12-02 12:43:14,787 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-12-02 12:43:14,794 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges
[2024-12-02 12:43:14,794 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-12-02 12:43:14,794 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2024-12-02 12:43:14,795 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-12-02 12:43:14,861 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b04762-096f-4689-8b88-920d444effed/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml
[2024-12-02 12:43:14,861 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b04762-096f-4689-8b88-920d444effed/bin/uautomizer-verify-84ZbGMXZE1/witness.yml
[2024-12-02 12:43:14,861 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 12:43:14,862 INFO L158 Benchmark]: Toolchain (without parser) took 1775.88ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 89.6MB in the end (delta: 2.3MB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB.
[2024-12-02 12:43:14,862 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 72.4MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 12:43:14,862 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.88ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 75.9MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-12-02 12:43:14,862 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.38ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 74.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 12:43:14,863 INFO L158 Benchmark]: Boogie Preprocessor took 32.36ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 72.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 12:43:14,863 INFO L158 Benchmark]: RCFGBuilder took 290.06ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 59.5MB in the end (delta: 13.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-12-02 12:43:14,863 INFO L158 Benchmark]: TraceAbstraction took 1022.78ms. Allocated memory is still 117.4MB. Free memory was 58.7MB in the beginning and 36.9MB in the end (delta: 21.8MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB.
[2024-12-02 12:43:14,863 INFO L158 Benchmark]: Witness Printer took 76.40ms. Allocated memory is still 117.4MB. Free memory was 36.9MB in the beginning and 89.6MB in the end (delta: -52.6MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB.
[2024-12-02 12:43:14,865 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 72.4MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 317.88ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 75.9MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 31.38ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 74.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 32.36ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 72.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 290.06ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 59.5MB in the end (delta: 13.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 1022.78ms. Allocated memory is still 117.4MB. Free memory was 58.7MB in the beginning and 36.9MB in the end (delta: 21.8MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB.
* Witness Printer took 76.40ms. Allocated memory is still 117.4MB. Free memory was 36.9MB in the beginning and 89.6MB in the end (delta: -52.6MB). Peak memory consumption was 13.7MB. 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: -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, 44 locations, 21 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 96 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 96 mSDsluCounter, 86 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 108 IncrementalHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 72 mSDtfsCounter, 108 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=44occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 165 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, ConComCheckerStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
21 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-12-02 12:43:14,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b04762-096f-4689-8b88-920d444effed/bin/uautomizer-verify-84ZbGMXZE1/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