This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m
[2024-09-20 13:30:00,303 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-09-20 13:30:00,377 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-09-20 13:30:00,384 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-09-20 13:30:00,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-20 13:30:00,416 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-20 13:30:00,417 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-20 13:30:00,418 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-20 13:30:00,419 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-20 13:30:00,420 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-09-20 13:30:00,420 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-20 13:30:00,421 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-20 13:30:00,421 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-20 13:30:00,422 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-09-20 13:30:00,424 INFO L153 SettingsManager]: * Use SBE=true
[2024-09-20 13:30:00,425 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-20 13:30:00,425 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-09-20 13:30:00,425 INFO L153 SettingsManager]: * sizeof long=4
[2024-09-20 13:30:00,426 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-09-20 13:30:00,426 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-09-20 13:30:00,426 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-09-20 13:30:00,427 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-09-20 13:30:00,430 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-20 13:30:00,431 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-09-20 13:30:00,431 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-09-20 13:30:00,431 INFO L153 SettingsManager]: * sizeof long double=12
[2024-09-20 13:30:00,431 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-09-20 13:30:00,432 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-09-20 13:30:00,432 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-20 13:30:00,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-09-20 13:30:00,432 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-09-20 13:30:00,433 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-09-20 13:30:00,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-20 13:30:00,433 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-20 13:30:00,434 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-09-20 13:30:00,434 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-20 13:30:00,434 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-09-20 13:30:00,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-09-20 13:30:00,434 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-20 13:30:00,435 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-20 13:30:00,435 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-09-20 13:30:00,436 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-20 13:30:00,437 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/automizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None
[2024-09-20 13:30:00,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-20 13:30:00,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-20 13:30:00,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-20 13:30:00,721 INFO L270 PluginConnector]: Initializing Witness Parser...
[2024-09-20 13:30:00,722 INFO L274 PluginConnector]: Witness Parser initialized
[2024-09-20 13:30:00,723 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/heavy-2.yml/witness-2.1.yml
[2024-09-20 13:30:00,804 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-09-20 13:30:00,804 INFO L274 PluginConnector]: CDTParser initialized
[2024-09-20 13:30:00,804 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loops/heavy-2.c
[2024-09-20 13:30:02,197 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-09-20 13:30:02,382 INFO L384 CDTParser]: Found 1 translation units.
[2024-09-20 13:30:02,382 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops/heavy-2.c
[2024-09-20 13:30:02,388 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/f70450fd7/f90260a8f8b147bbae65a05fc5a41c52/FLAG99ff05354
[2024-09-20 13:30:02,401 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/f70450fd7/f90260a8f8b147bbae65a05fc5a41c52
[2024-09-20 13:30:02,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-20 13:30:02,403 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements.
[2024-09-20 13:30:02,404 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-20 13:30:02,405 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-20 13:30:02,409 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-20 13:30:02,410 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:30:00" (1/2) ...
[2024-09-20 13:30:02,411 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1252fc08 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:30:02, skipping insertion in model container
[2024-09-20 13:30:02,411 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:30:00" (1/2) ...
[2024-09-20 13:30:02,412 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1d327609 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:30:02, skipping insertion in model container
[2024-09-20 13:30:02,412 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:02" (2/2) ...
[2024-09-20 13:30:02,413 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1252fc08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:02, skipping insertion in model container
[2024-09-20 13:30:02,413 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:02" (2/2) ...
[2024-09-20 13:30:02,420 INFO L93 nessWitnessExtractor]: Found the following entries in the witness:
[2024-09-20 13:30:02,420 INFO L1541 ArrayList]: Loop invariant at [L14-L15] (a == 1)
[2024-09-20 13:30:02,421 INFO L1541 ArrayList]: Loop invariant at [L12-L15] (a == 1)
[2024-09-20 13:30:02,421 INFO L1541 ArrayList]: Loop invariant at [L13-L15] (a == 1)
[2024-09-20 13:30:02,421 INFO L1541 ArrayList]: Location invariant before [L21-L21] 0
[2024-09-20 13:30:02,457 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-09-20 13:30:02,633 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops/heavy-2.c[600,613]
[2024-09-20 13:30:02,638 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-20 13:30:02,681 INFO L200 MainTranslator]: Completed pre-run
Start Parsing Local
Start Parsing Local
Start Parsing Local
[2024-09-20 13:30:02,719 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops/heavy-2.c[600,613]
Start Parsing Local
[2024-09-20 13:30:02,722 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-20 13:30:02,798 INFO L204 MainTranslator]: Completed translation
[2024-09-20 13:30:02,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:02 WrapperNode
[2024-09-20 13:30:02,799 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-20 13:30:02,800 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-09-20 13:30:02,800 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-09-20 13:30:02,800 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-09-20 13:30:02,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:02" (1/1) ...
[2024-09-20 13:30:02,815 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:02" (1/1) ...
[2024-09-20 13:30:02,838 INFO L138 Inliner]: procedures = 12, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 59
[2024-09-20 13:30:02,839 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-09-20 13:30:02,840 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-20 13:30:02,840 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-20 13:30:02,840 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-09-20 13:30:02,851 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:02" (1/1) ...
[2024-09-20 13:30:02,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:02" (1/1) ...
[2024-09-20 13:30:02,853 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:02" (1/1) ...
[2024-09-20 13:30:02,870 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3].
[2024-09-20 13:30:02,873 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:02" (1/1) ...
[2024-09-20 13:30:02,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:02" (1/1) ...
[2024-09-20 13:30:02,882 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:02" (1/1) ...
[2024-09-20 13:30:02,886 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:02" (1/1) ...
[2024-09-20 13:30:02,890 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:02" (1/1) ...
[2024-09-20 13:30:02,891 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:02" (1/1) ...
[2024-09-20 13:30:02,893 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-20 13:30:02,898 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-20 13:30:02,898 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-09-20 13:30:02,898 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-09-20 13:30:02,899 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:02" (1/1) ...
[2024-09-20 13:30:02,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-20 13:30:02,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 13:30:02,935 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-09-20 13:30:02,940 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-09-20 13:30:02,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-09-20 13:30:02,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-09-20 13:30:02,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-20 13:30:02,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-20 13:30:02,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-20 13:30:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-09-20 13:30:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-09-20 13:30:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-09-20 13:30:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-09-20 13:30:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0
[2024-09-20 13:30:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1
[2024-09-20 13:30:03,080 INFO L242 CfgBuilder]: Building ICFG
[2024-09-20 13:30:03,082 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-20 13:30:03,273 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live.
[2024-09-20 13:30:03,273 INFO L291 CfgBuilder]: Performing block encoding
[2024-09-20 13:30:03,317 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-20 13:30:03,318 INFO L318 CfgBuilder]: Removed 3 assume(true) statements.
[2024-09-20 13:30:03,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:03 BoogieIcfgContainer
[2024-09-20 13:30:03,318 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-20 13:30:03,323 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-09-20 13:30:03,324 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-09-20 13:30:03,327 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-09-20 13:30:03,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:30:00" (1/4) ...
[2024-09-20 13:30:03,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c51e6f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.09 01:30:03, skipping insertion in model container
[2024-09-20 13:30:03,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:02" (2/4) ...
[2024-09-20 13:30:03,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c51e6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:03, skipping insertion in model container
[2024-09-20 13:30:03,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:02" (3/4) ...
[2024-09-20 13:30:03,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c51e6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:03, skipping insertion in model container
[2024-09-20 13:30:03,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:03" (4/4) ...
[2024-09-20 13:30:03,332 INFO L112 eAbstractionObserver]: Analyzing ICFG heavy-2.c
[2024-09-20 13:30:03,350 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-09-20 13:30:03,351 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations.
[2024-09-20 13:30:03,399 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-09-20 13:30:03,408 INFO L336 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;@38c55a07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-20 13:30:03,411 INFO L337 AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2024-09-20 13:30:03,416 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 18 states have internal predecessors, (25), 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)
[2024-09-20 13:30:03,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3
[2024-09-20 13:30:03,422 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:30:03,422 INFO L216 NwaCegarLoop]: trace histogram [1, 1]
[2024-09-20 13:30:03,423 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] ===
[2024-09-20 13:30:03,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:30:03,434 INFO L85 PathProgramCache]: Analyzing trace with hash 2825, now seen corresponding path program 1 times
[2024-09-20 13:30:03,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:30:03,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393964419]
[2024-09-20 13:30:03,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:30:03,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:30:03,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:30:03,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:30:03,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:30:03,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393964419]
[2024-09-20 13:30:03,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393964419] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:30:03,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 13:30:03,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-09-20 13:30:03,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666284468]
[2024-09-20 13:30:03,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:30:03,679 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-20 13:30:03,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:30:03,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-20 13:30:03,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-20 13:30:03,727 INFO L87 Difference]: Start difference. First operand has 19 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 18 states have internal predecessors, (25), 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 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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)
[2024-09-20 13:30:03,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:30:03,798 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions.
[2024-09-20 13:30:03,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-09-20 13:30:03,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2
[2024-09-20 13:30:03,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:30:03,805 INFO L225 Difference]: With dead ends: 12
[2024-09-20 13:30:03,805 INFO L226 Difference]: Without dead ends: 0
[2024-09-20 13:30:03,806 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-20 13:30:03,810 INFO L434 NwaCegarLoop]: 7 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-20 13:30:03,811 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 7 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-20 13:30:03,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-09-20 13:30:03,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-09-20 13:30:03,831 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)
[2024-09-20 13:30:03,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-09-20 13:30:03,833 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2
[2024-09-20 13:30:03,833 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:30:03,833 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-09-20 13:30:03,833 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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)
[2024-09-20 13:30:03,833 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-09-20 13:30:03,833 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-09-20 13:30:03,836 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 5 remaining)
[2024-09-20 13:30:03,836 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 5 remaining)
[2024-09-20 13:30:03,837 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 5 remaining)
[2024-09-20 13:30:03,837 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 5 remaining)
[2024-09-20 13:30:03,837 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining)
[2024-09-20 13:30:03,837 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-09-20 13:30:03,840 INFO L408 BasicCegarLoop]: Path program histogram: [1]
[2024-09-20 13:30:03,842 INFO L165 ceAbstractionStarter]: Computing trace abstraction results
[2024-09-20 13:30:03,844 INFO L469 ceAbstractionStarter]: Automizer considered 4 witness invariants
[2024-09-20 13:30:03,845 INFO L470 ceAbstractionStarter]: WitnessConsidered=4
[2024-09-20 13:30:03,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:03 BoogieIcfgContainer
[2024-09-20 13:30:03,845 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-09-20 13:30:03,846 INFO L158 Benchmark]: Toolchain (without parser) took 1442.99ms. Allocated memory was 167.8MB in the beginning and 230.7MB in the end (delta: 62.9MB). Free memory was 91.7MB in the beginning and 194.4MB in the end (delta: -102.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-20 13:30:03,846 INFO L158 Benchmark]: Witness Parser took 0.23ms. Allocated memory is still 167.8MB. Free memory is still 119.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-20 13:30:03,847 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 167.8MB. Free memory is still 136.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-20 13:30:03,847 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.82ms. Allocated memory was 167.8MB in the beginning and 230.7MB in the end (delta: 62.9MB). Free memory was 91.5MB in the beginning and 162.4MB in the end (delta: -70.9MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB.
[2024-09-20 13:30:03,848 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.00ms. Allocated memory is still 230.7MB. Free memory was 162.4MB in the beginning and 161.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-20 13:30:03,849 INFO L158 Benchmark]: Boogie Preprocessor took 57.20ms. Allocated memory is still 230.7MB. Free memory was 161.3MB in the beginning and 159.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-20 13:30:03,849 INFO L158 Benchmark]: RCFGBuilder took 420.67ms. Allocated memory is still 230.7MB. Free memory was 159.2MB in the beginning and 143.5MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2024-09-20 13:30:03,850 INFO L158 Benchmark]: TraceAbstraction took 522.84ms. Allocated memory is still 230.7MB. Free memory was 143.5MB in the beginning and 194.4MB in the end (delta: -51.0MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-20 13:30:03,853 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* Witness Parser took 0.23ms. Allocated memory is still 167.8MB. Free memory is still 119.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CDTParser took 0.10ms. Allocated memory is still 167.8MB. Free memory is still 136.9MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 394.82ms. Allocated memory was 167.8MB in the beginning and 230.7MB in the end (delta: 62.9MB). Free memory was 91.5MB in the beginning and 162.4MB in the end (delta: -70.9MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 39.00ms. Allocated memory is still 230.7MB. Free memory was 162.4MB in the beginning and 161.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 57.20ms. Allocated memory is still 230.7MB. Free memory was 161.3MB in the beginning and 159.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 420.67ms. Allocated memory is still 230.7MB. Free memory was 159.2MB in the beginning and 143.5MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 522.84ms. Allocated memory is still 230.7MB. Free memory was 143.5MB in the beginning and 194.4MB in the end (delta: -51.0MB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 12]: invariant of correctness witness holds
For all program executions holds that invariant of correctness witness holds at this location
- PositiveResult [Line: 13]: invariant of correctness witness holds
For all program executions holds that invariant of correctness witness holds at this location
- PositiveResult [Line: 14]: invariant of correctness witness holds
For all program executions holds that invariant of correctness witness holds at this location
- PositiveResult [Line: 21]: invariant of correctness witness holds
For all program executions holds that invariant of correctness witness holds at this location
- PositiveResult [Line: 21]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 19 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 7 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 1 ConstructedInterpolants, 0 QuantifiedInterpolants, 3 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
5 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-09-20 13:30:03,883 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...