./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-properties/splice-1.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2484fe0-f52c-48cc-a831-5e1a0e7d23ee/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2484fe0-f52c-48cc-a831-5e1a0e7d23ee/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2484fe0-f52c-48cc-a831-5e1a0e7d23ee/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2484fe0-f52c-48cc-a831-5e1a0e7d23ee/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/list-properties/splice-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2484fe0-f52c-48cc-a831-5e1a0e7d23ee/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2484fe0-f52c-48cc-a831-5e1a0e7d23ee/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3368805c1b8fd734b0faf0a6dc34f33a5f2dfc4632d20a018a29950383fb6a5c
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 01:21:35,410 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-24 01:21:35,520 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2484fe0-f52c-48cc-a831-5e1a0e7d23ee/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-24 01:21:35,531 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 01:21:35,532 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 01:21:35,568 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 01:21:35,570 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 01:21:35,570 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 01:21:35,571 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 01:21:35,571 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-24 01:21:35,572 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 01:21:35,572 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 01:21:35,573 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 01:21:35,573 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-24 01:21:35,573 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-24 01:21:35,573 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 01:21:35,574 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-24 01:21:35,574 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-24 01:21:35,574 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-24 01:21:35,574 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-24 01:21:35,574 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-24 01:21:35,575 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-24 01:21:35,575 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 01:21:35,575 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-24 01:21:35,575 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-24 01:21:35,575 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-24 01:21:35,575 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 01:21:35,575 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-24 01:21:35,575 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 01:21:35,576 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:21:35,576 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:21:35,576 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:21:35,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:21:35,577 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 01:21:35,577 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:21:35,577 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:21:35,577 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:21:35,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:21:35,578 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 01:21:35,578 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 01:21:35,578 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-24 01:21:35,578 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-24 01:21:35,578 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-24 01:21:35,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-24 01:21:35,578 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 01:21:35,578 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 01:21:35,578 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 01:21:35,579 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 01:21:35,579 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_e2484fe0-f52c-48cc-a831-5e1a0e7d23ee/bin/uautomizer-verify-LYvppIcaGC
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 ! call(reach_error())) )
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 -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3368805c1b8fd734b0faf0a6dc34f33a5f2dfc4632d20a018a29950383fb6a5c
[2024-11-24 01:21:35,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 01:21:35,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 01:21:35,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 01:21:35,924 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-24 01:21:35,925 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-24 01:21:35,927 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2484fe0-f52c-48cc-a831-5e1a0e7d23ee/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/list-properties/splice-1.i
[2024-11-24 01:21:38,896 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2484fe0-f52c-48cc-a831-5e1a0e7d23ee/bin/uautomizer-verify-LYvppIcaGC/data/d69b5301b/78150ff6e3cb4d7199a5b02af8ab1d6c/FLAG22e54797d
[2024-11-24 01:21:39,325 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-24 01:21:39,326 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2484fe0-f52c-48cc-a831-5e1a0e7d23ee/sv-benchmarks/c/list-properties/splice-1.i
[2024-11-24 01:21:39,346 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2484fe0-f52c-48cc-a831-5e1a0e7d23ee/bin/uautomizer-verify-LYvppIcaGC/data/d69b5301b/78150ff6e3cb4d7199a5b02af8ab1d6c/FLAG22e54797d
[2024-11-24 01:21:39,465 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2484fe0-f52c-48cc-a831-5e1a0e7d23ee/bin/uautomizer-verify-LYvppIcaGC/data/d69b5301b/78150ff6e3cb4d7199a5b02af8ab1d6c
[2024-11-24 01:21:39,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 01:21:39,469 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 01:21:39,471 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 01:21:39,472 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 01:21:39,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 01:21:39,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:21:39" (1/1) ...
[2024-11-24 01:21:39,483 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57b0e5b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:39, skipping insertion in model container
[2024-11-24 01:21:39,483 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:21:39" (1/1) ...
[2024-11-24 01:21:39,538 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-24 01:21:39,843 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2484fe0-f52c-48cc-a831-5e1a0e7d23ee/sv-benchmarks/c/list-properties/splice-1.i[23721,23734]
[2024-11-24 01:21:39,848 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:21:39,860 INFO L200 MainTranslator]: Completed pre-run
[2024-11-24 01:21:39,906 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2484fe0-f52c-48cc-a831-5e1a0e7d23ee/sv-benchmarks/c/list-properties/splice-1.i[23721,23734]
[2024-11-24 01:21:39,907 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:21:39,935 INFO L204 MainTranslator]: Completed translation
[2024-11-24 01:21:39,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:39 WrapperNode
[2024-11-24 01:21:39,936 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 01:21:39,937 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 01:21:39,937 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 01:21:39,937 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 01:21:39,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:39" (1/1) ...
[2024-11-24 01:21:39,963 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:39" (1/1) ...
[2024-11-24 01:21:39,985 INFO L138 Inliner]: procedures = 124, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 100
[2024-11-24 01:21:39,988 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 01:21:39,988 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 01:21:39,989 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 01:21:39,990 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 01:21:39,998 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:39" (1/1) ...
[2024-11-24 01:21:39,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:39" (1/1) ...
[2024-11-24 01:21:40,001 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:39" (1/1) ...
[2024-11-24 01:21:40,015 INFO L175 MemorySlicer]: Split 16 memory accesses to 2 slices as follows [2, 14]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 6 writes are split as follows [0, 6].
[2024-11-24 01:21:40,015 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:39" (1/1) ...
[2024-11-24 01:21:40,016 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:39" (1/1) ...
[2024-11-24 01:21:40,022 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:39" (1/1) ...
[2024-11-24 01:21:40,023 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:39" (1/1) ...
[2024-11-24 01:21:40,027 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:39" (1/1) ...
[2024-11-24 01:21:40,028 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:39" (1/1) ...
[2024-11-24 01:21:40,029 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:39" (1/1) ...
[2024-11-24 01:21:40,032 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 01:21:40,033 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 01:21:40,033 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 01:21:40,033 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-24 01:21:40,034 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:39" (1/1) ...
[2024-11-24 01:21:40,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:21:40,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2484fe0-f52c-48cc-a831-5e1a0e7d23ee/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:21:40,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2484fe0-f52c-48cc-a831-5e1a0e7d23ee/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 01:21:40,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2484fe0-f52c-48cc-a831-5e1a0e7d23ee/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 01:21:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure myexit
[2024-11-24 01:21:40,109 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit
[2024-11-24 01:21:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-24 01:21:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-24 01:21:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-24 01:21:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-24 01:21:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-24 01:21:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 01:21:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-11-24 01:21:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-11-24 01:21:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-24 01:21:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-24 01:21:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-24 01:21:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-24 01:21:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 01:21:40,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 01:21:40,240 INFO L234 CfgBuilder]: Building ICFG
[2024-11-24 01:21:40,242 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 01:21:40,261 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true;
[2024-11-24 01:21:40,460 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live.
[2024-11-24 01:21:40,460 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-24 01:21:40,470 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 01:21:40,471 INFO L312 CfgBuilder]: Removed 4 assume(true) statements.
[2024-11-24 01:21:40,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:21:40 BoogieIcfgContainer
[2024-11-24 01:21:40,472 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 01:21:40,474 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 01:21:40,474 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 01:21:40,480 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-24 01:21:40,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:21:39" (1/3) ...
[2024-11-24 01:21:40,481 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf90a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:21:40, skipping insertion in model container
[2024-11-24 01:21:40,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:39" (2/3) ...
[2024-11-24 01:21:40,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf90a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:21:40, skipping insertion in model container
[2024-11-24 01:21:40,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:21:40" (3/3) ...
[2024-11-24 01:21:40,483 INFO L128 eAbstractionObserver]: Analyzing ICFG splice-1.i
[2024-11-24 01:21:40,503 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 01:21:40,505 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG splice-1.i that has 2 procedures, 35 locations, 1 initial locations, 4 loop locations, and 1 error locations.
[2024-11-24 01:21:40,580 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 01:21:40,601 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=LoopHeads, 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;@7ef161f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 01:21:40,602 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-24 01:21:40,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 30 states have (on average 1.5333333333333334) internal successors, (46), 32 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:21:40,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-11-24 01:21:40,616 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:21:40,617 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:21:40,618 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:21:40,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:21:40,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1715086027, now seen corresponding path program 1 times
[2024-11-24 01:21:40,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:21:40,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625537547]
[2024-11-24 01:21:40,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:21:40,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:21:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:21:40,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:21:40,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:21:40,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625537547]
[2024-11-24 01:21:40,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625537547] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:21:40,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:21:40,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:21:40,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240744469]
[2024-11-24 01:21:40,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:21:40,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-24 01:21:40,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:21:40,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-24 01:21:40,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-24 01:21:40,839 INFO L87 Difference]: Start difference. First operand has 34 states, 30 states have (on average 1.5333333333333334) internal successors, (46), 32 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:21:40,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:21:40,862 INFO L93 Difference]: Finished difference Result 54 states and 77 transitions.
[2024-11-24 01:21:40,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-24 01:21:40,864 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13
[2024-11-24 01:21:40,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:21:40,872 INFO L225 Difference]: With dead ends: 54
[2024-11-24 01:21:40,872 INFO L226 Difference]: Without dead ends: 26
[2024-11-24 01:21:40,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-24 01:21:40,882 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 01:21:40,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:21:40,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states.
[2024-11-24 01:21:40,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26.
[2024-11-24 01:21:40,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 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)
[2024-11-24 01:21:40,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions.
[2024-11-24 01:21:40,928 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 13
[2024-11-24 01:21:40,929 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:21:40,929 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions.
[2024-11-24 01:21:40,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:21:40,930 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions.
[2024-11-24 01:21:40,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-11-24 01:21:40,931 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:21:40,933 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:21:40,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-24 01:21:40,933 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:21:40,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:21:40,934 INFO L85 PathProgramCache]: Analyzing trace with hash 206933105, now seen corresponding path program 1 times
[2024-11-24 01:21:40,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:21:40,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97029903]
[2024-11-24 01:21:40,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:21:40,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:21:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:21:41,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:21:41,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:21:41,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97029903]
[2024-11-24 01:21:41,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97029903] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:21:41,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:21:41,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 01:21:41,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825483124]
[2024-11-24 01:21:41,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:21:41,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:21:41,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:21:41,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:21:41,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:21:41,203 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:21:41,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:21:41,287 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions.
[2024-11-24 01:21:41,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 01:21:41,288 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2024-11-24 01:21:41,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:21:41,289 INFO L225 Difference]: With dead ends: 41
[2024-11-24 01:21:41,289 INFO L226 Difference]: Without dead ends: 32
[2024-11-24 01:21:41,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:21:41,290 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 3 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 01:21:41,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 68 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 01:21:41,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2024-11-24 01:21:41,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32.
[2024-11-24 01:21:41,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 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)
[2024-11-24 01:21:41,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions.
[2024-11-24 01:21:41,301 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 15
[2024-11-24 01:21:41,301 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:21:41,302 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions.
[2024-11-24 01:21:41,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:21:41,302 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions.
[2024-11-24 01:21:41,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-24 01:21:41,302 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:21:41,303 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:21:41,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-24 01:21:41,303 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:21:41,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:21:41,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1360138473, now seen corresponding path program 1 times
[2024-11-24 01:21:41,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:21:41,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383093163]
[2024-11-24 01:21:41,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:21:41,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:21:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:21:41,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:21:41,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:21:41,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383093163]
[2024-11-24 01:21:41,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383093163] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:21:41,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:21:41,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 01:21:41,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316952134]
[2024-11-24 01:21:41,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:21:41,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:21:41,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:21:41,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:21:41,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:21:41,453 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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)
[2024-11-24 01:21:41,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:21:41,507 INFO L93 Difference]: Finished difference Result 55 states and 68 transitions.
[2024-11-24 01:21:41,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 01:21:41,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 17
[2024-11-24 01:21:41,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:21:41,511 INFO L225 Difference]: With dead ends: 55
[2024-11-24 01:21:41,511 INFO L226 Difference]: Without dead ends: 46
[2024-11-24 01:21:41,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:21:41,512 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 8 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 01:21:41,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 70 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:21:41,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states.
[2024-11-24 01:21:41,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44.
[2024-11-24 01:21:41,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.302325581395349) internal successors, (56), 43 states have internal predecessors, (56), 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)
[2024-11-24 01:21:41,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions.
[2024-11-24 01:21:41,526 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 17
[2024-11-24 01:21:41,526 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:21:41,526 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions.
[2024-11-24 01:21:41,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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)
[2024-11-24 01:21:41,527 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions.
[2024-11-24 01:21:41,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-11-24 01:21:41,527 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:21:41,528 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:21:41,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-24 01:21:41,528 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:21:41,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:21:41,531 INFO L85 PathProgramCache]: Analyzing trace with hash -633857077, now seen corresponding path program 1 times
[2024-11-24 01:21:41,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:21:41,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908437718]
[2024-11-24 01:21:41,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:21:41,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:21:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:21:41,886 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:21:41,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:21:41,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908437718]
[2024-11-24 01:21:41,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908437718] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:21:41,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:21:41,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-24 01:21:41,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407255735]
[2024-11-24 01:21:41,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:21:41,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-24 01:21:41,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:21:41,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-24 01:21:41,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-24 01:21:41,890 INFO L87 Difference]: Start difference. First operand 44 states and 56 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:21:42,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:21:42,051 INFO L93 Difference]: Finished difference Result 84 states and 108 transitions.
[2024-11-24 01:21:42,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-24 01:21:42,052 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19
[2024-11-24 01:21:42,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:21:42,052 INFO L225 Difference]: With dead ends: 84
[2024-11-24 01:21:42,052 INFO L226 Difference]: Without dead ends: 50
[2024-11-24 01:21:42,053 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-11-24 01:21:42,054 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 6 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 01:21:42,054 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 93 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 01:21:42,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states.
[2024-11-24 01:21:42,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46.
[2024-11-24 01:21:42,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.288888888888889) internal successors, (58), 45 states have internal predecessors, (58), 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)
[2024-11-24 01:21:42,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions.
[2024-11-24 01:21:42,065 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 19
[2024-11-24 01:21:42,065 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:21:42,065 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions.
[2024-11-24 01:21:42,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:21:42,066 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions.
[2024-11-24 01:21:42,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2024-11-24 01:21:42,066 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:21:42,066 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:21:42,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-24 01:21:42,067 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:21:42,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:21:42,067 INFO L85 PathProgramCache]: Analyzing trace with hash 2137822274, now seen corresponding path program 1 times
[2024-11-24 01:21:42,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:21:42,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253446138]
[2024-11-24 01:21:42,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:21:42,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:21:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-24 01:21:42,142 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-24 01:21:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-24 01:21:42,206 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-24 01:21:42,207 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-11-24 01:21:42,208 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-24 01:21:42,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-24 01:21:42,214 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2024-11-24 01:21:42,252 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-24 01:21:42,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:21:42 BoogieIcfgContainer
[2024-11-24 01:21:42,261 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-24 01:21:42,263 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-24 01:21:42,263 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-24 01:21:42,263 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-24 01:21:42,265 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:21:40" (3/4) ...
[2024-11-24 01:21:42,266 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample
[2024-11-24 01:21:42,334 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 12.
[2024-11-24 01:21:42,392 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2484fe0-f52c-48cc-a831-5e1a0e7d23ee/bin/uautomizer-verify-LYvppIcaGC/witness.graphml
[2024-11-24 01:21:42,392 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2484fe0-f52c-48cc-a831-5e1a0e7d23ee/bin/uautomizer-verify-LYvppIcaGC/witness.yml
[2024-11-24 01:21:42,393 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-24 01:21:42,393 INFO L158 Benchmark]: Toolchain (without parser) took 2924.51ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 92.8MB in the beginning and 310.6MB in the end (delta: -217.8MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB.
[2024-11-24 01:21:42,394 INFO L158 Benchmark]: CDTParser took 0.65ms. Allocated memory is still 167.8MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:21:42,394 INFO L158 Benchmark]: CACSL2BoogieTranslator took 465.84ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 75.2MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-24 01:21:42,394 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.54ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 73.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:21:42,394 INFO L158 Benchmark]: Boogie Preprocessor took 44.00ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 71.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:21:42,395 INFO L158 Benchmark]: RCFGBuilder took 438.85ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 56.9MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-24 01:21:42,395 INFO L158 Benchmark]: TraceAbstraction took 1786.81ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 56.6MB in the beginning and 316.0MB in the end (delta: -259.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:21:42,395 INFO L158 Benchmark]: Witness Printer took 129.70ms. Allocated memory is still 352.3MB. Free memory was 316.0MB in the beginning and 310.6MB in the end (delta: 5.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:21:42,397 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.65ms. Allocated memory is still 167.8MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 465.84ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 75.2MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 50.54ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 73.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 44.00ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 71.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 438.85ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 56.9MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 1786.81ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 56.6MB in the beginning and 316.0MB in the end (delta: -259.5MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 129.70ms. Allocated memory is still 352.3MB. Free memory was 316.0MB in the beginning and 310.6MB in the end (delta: 5.4MB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- CounterExampleResult [Line: 584]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L532] int flag = 1;
[L533] List a = (List) malloc(sizeof(struct node));
[L534] COND FALSE !(a == 0)
VAL [a={-1:0}, flag=1]
[L535] List t;
[L536] List l1;
[L537] List l2;
[L538] List b;
[L539] List u;
[L540] List p = a;
VAL [a={-1:0}, flag=1, p={-1:0}]
[L541] COND TRUE __VERIFIER_nondet_int()
[L542] COND TRUE \read(flag)
[L543] p->h = 1
[L544] flag = 0
VAL [a={-1:0}, flag=0, p={-1:0}]
[L549] t = (List) malloc(sizeof(struct node))
[L550] COND FALSE !(t == 0)
VAL [a={-1:0}, flag=0, p={-1:0}, t={-2:0}]
[L551] p->n = t
[L552] EXPR p->n
[L552] p = p->n
[L541] COND FALSE !(__VERIFIER_nondet_int())
[L554] p->h = 3
[L555] EXPR a->h
[L555] COND FALSE !(a->h == 3)
[L556] flag = 1
[L557] l1 = 0
[L558] l2 = 0
[L559] p = a
VAL [flag=1, l1={0:0}, l2={0:0}, p={-1:0}]
[L560] EXPR p->h
[L560] COND TRUE p->h != 3
[L561] t = p
[L562] EXPR p->n
[L562] p = p->n
[L563] COND TRUE \read(flag)
[L564] t->n = l1
[L565] l1 = t
[L566] flag = 0
VAL [flag=0, l1={-1:0}, l2={0:0}, p={-2:0}]
[L560] EXPR p->h
[L560] COND FALSE !(p->h != 3)
[L573] p = l1
VAL [flag=0, l2={0:0}, p={-1:0}]
[L574] COND TRUE p != 0
VAL [flag=0, l2={0:0}, p={-1:0}]
[L575] EXPR p->h
[L575] COND TRUE p->h != 2
[L584] reach_error()
VAL [flag=0, l2={0:0}, p={-1:0}]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 274 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 146 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 118 IncrementalHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 128 mSDtfsCounter, 118 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=4, 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 152 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2/2 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
RESULT: Ultimate proved your program to be incorrect!
[2024-11-24 01:21:42,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2484fe0-f52c-48cc-a831-5e1a0e7d23ee/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE