This is Ultimate 0.2.4-tmp.dk.referee-eval-04d6fb3-m
[2024-09-15 20:09:56,645 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-09-15 20:09:56,718 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-09-15 20:09:56,722 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-09-15 20:09:56,722 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-15 20:09:56,743 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-15 20:09:56,745 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-15 20:09:56,745 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-15 20:09:56,746 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-15 20:09:56,749 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-09-15 20:09:56,749 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-15 20:09:56,749 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-15 20:09:56,750 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-15 20:09:56,751 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-09-15 20:09:56,751 INFO L153 SettingsManager]: * Use SBE=true
[2024-09-15 20:09:56,752 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-15 20:09:56,752 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-09-15 20:09:56,752 INFO L153 SettingsManager]: * sizeof long=4
[2024-09-15 20:09:56,752 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-09-15 20:09:56,752 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-09-15 20:09:56,753 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-09-15 20:09:56,753 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-09-15 20:09:56,753 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-15 20:09:56,753 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-09-15 20:09:56,753 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-09-15 20:09:56,754 INFO L153 SettingsManager]: * sizeof long double=12
[2024-09-15 20:09:56,754 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-09-15 20:09:56,754 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-09-15 20:09:56,755 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-15 20:09:56,755 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-09-15 20:09:56,755 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-09-15 20:09:56,755 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-09-15 20:09:56,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-15 20:09:56,756 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-15 20:09:56,756 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-09-15 20:09:56,756 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-15 20:09:56,757 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-09-15 20:09:56,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-09-15 20:09:56,757 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-15 20:09:56,757 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-15 20:09:56,758 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-09-15 20:09:56,758 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-15 20:09:56,758 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None
[2024-09-15 20:09:57,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-15 20:09:57,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-15 20:09:57,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-15 20:09:57,060 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-09-15 20:09:57,060 INFO L274 PluginConnector]: CDTParser initialized
[2024-09-15 20:09:57,061 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-acceleration/array_1-2.c
[2024-09-15 20:09:58,409 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-09-15 20:09:58,564 INFO L384 CDTParser]: Found 1 translation units.
[2024-09-15 20:09:58,565 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/array_1-2.c
[2024-09-15 20:09:58,574 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/c6b160419/6e80da2e4eb1479ca14ba0f3de9ceeb8/FLAG99187f05f
[2024-09-15 20:09:58,589 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/c6b160419/6e80da2e4eb1479ca14ba0f3de9ceeb8
[2024-09-15 20:09:58,595 INFO L270 PluginConnector]: Initializing Witness Parser...
[2024-09-15 20:09:58,595 INFO L274 PluginConnector]: Witness Parser initialized
[2024-09-15 20:09:58,596 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/array_1-2.yml/witness-2.1.yml
[2024-09-15 20:09:58,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-15 20:09:58,637 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements.
[2024-09-15 20:09:58,638 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-15 20:09:58,638 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-15 20:09:58,642 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-15 20:09:58,642 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:09:58" (1/2) ...
[2024-09-15 20:09:58,643 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1195235d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:09:58, skipping insertion in model container
[2024-09-15 20:09:58,646 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:09:58" (1/2) ...
[2024-09-15 20:09:58,647 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4c2282cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:09:58, skipping insertion in model container
[2024-09-15 20:09:58,647 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:09:58" (2/2) ...
[2024-09-15 20:09:58,648 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1195235d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:09:58, skipping insertion in model container
[2024-09-15 20:09:58,648 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:09:58" (2/2) ...
[2024-09-15 20:09:58,653 INFO L93 nessWitnessExtractor]: Found the following entries in the witness:
[2024-09-15 20:09:58,655 INFO L1541 ArrayList]: Function contract at [L5]: requires (1 <= \old(cond)), ensures (1 <= \old(cond))
[2024-09-15 20:09:58,667 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-09-15 20:09:58,780 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/loop-acceleration/array_1-2.c[321,334]
[2024-09-15 20:09:58,797 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-15 20:09:58,807 INFO L200 MainTranslator]: Completed pre-run
Start Parsing Global
Start Parsing Global
[2024-09-15 20:09:58,841 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/loop-acceleration/array_1-2.c[321,334]
[2024-09-15 20:09:58,844 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-15 20:09:58,857 INFO L204 MainTranslator]: Completed translation
[2024-09-15 20:09:58,859 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:09:58 WrapperNode
[2024-09-15 20:09:58,859 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-15 20:09:58,860 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-09-15 20:09:58,860 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-09-15 20:09:58,861 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-09-15 20:09:58,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:09:58" (1/1) ...
[2024-09-15 20:09:58,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:09:58" (1/1) ...
[2024-09-15 20:09:58,885 INFO L138 Inliner]: procedures = 13, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31
[2024-09-15 20:09:58,885 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-09-15 20:09:58,886 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-15 20:09:58,886 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-15 20:09:58,886 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-09-15 20:09:58,894 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:09:58" (1/1) ...
[2024-09-15 20:09:58,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:09:58" (1/1) ...
[2024-09-15 20:09:58,896 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:09:58" (1/1) ...
[2024-09-15 20:09:58,911 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [2, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1].
[2024-09-15 20:09:58,913 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:09:58" (1/1) ...
[2024-09-15 20:09:58,913 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:09:58" (1/1) ...
[2024-09-15 20:09:58,917 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:09:58" (1/1) ...
[2024-09-15 20:09:58,920 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:09:58" (1/1) ...
[2024-09-15 20:09:58,921 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:09:58" (1/1) ...
[2024-09-15 20:09:58,924 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:09:58" (1/1) ...
[2024-09-15 20:09:58,926 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-15 20:09:58,926 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-15 20:09:58,926 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-09-15 20:09:58,926 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-09-15 20:09:58,927 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:09:58" (1/1) ...
[2024-09-15 20:09:58,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-15 20:09:58,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-15 20:09:58,952 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)
[2024-09-15 20:09:58,955 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
[2024-09-15 20:09:59,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-15 20:09:59,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-09-15 20:09:59,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-09-15 20:09:59,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-09-15 20:09:59,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-09-15 20:09:59,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-09-15 20:09:59,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-15 20:09:59,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-15 20:09:59,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-09-15 20:09:59,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-09-15 20:09:59,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-09-15 20:09:59,073 INFO L242 CfgBuilder]: Building ICFG
[2024-09-15 20:09:59,074 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-15 20:09:59,154 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live.
[2024-09-15 20:09:59,154 INFO L291 CfgBuilder]: Performing block encoding
[2024-09-15 20:09:59,177 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-15 20:09:59,181 INFO L318 CfgBuilder]: Removed 1 assume(true) statements.
[2024-09-15 20:09:59,182 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:09:59 BoogieIcfgContainer
[2024-09-15 20:09:59,183 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-15 20:09:59,185 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-09-15 20:09:59,185 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-09-15 20:09:59,188 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-09-15 20:09:59,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 08:09:58" (1/4) ...
[2024-09-15 20:09:59,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2741cd9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 08:09:59, skipping insertion in model container
[2024-09-15 20:09:59,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:09:58" (2/4) ...
[2024-09-15 20:09:59,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2741cd9a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 15.09 08:09:59, skipping insertion in model container
[2024-09-15 20:09:59,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:09:58" (3/4) ...
[2024-09-15 20:09:59,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2741cd9a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 15.09 08:09:59, skipping insertion in model container
[2024-09-15 20:09:59,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:09:59" (4/4) ...
[2024-09-15 20:09:59,191 INFO L112 eAbstractionObserver]: Analyzing ICFG array_1-2.c
[2024-09-15 20:09:59,208 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-09-15 20:09:59,208 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations.
[2024-09-15 20:09:59,249 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-09-15 20:09:59,256 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;@4638f930, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-15 20:09:59,256 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2024-09-15 20:09:59,259 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 10 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)
[2024-09-15 20:09:59,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2024-09-15 20:09:59,264 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-15 20:09:59,265 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2024-09-15 20:09:59,266 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION] ===
[2024-09-15 20:09:59,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:09:59,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1944616, now seen corresponding path program 1 times
[2024-09-15 20:09:59,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:09:59,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300788249]
[2024-09-15 20:09:59,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:09:59,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:09:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:09:59,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-15 20:09:59,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:09:59,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300788249]
[2024-09-15 20:09:59,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300788249] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-15 20:09:59,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-15 20:09:59,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-15 20:09:59,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689258449]
[2024-09-15 20:09:59,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-15 20:09:59,421 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-15 20:09:59,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:09:59,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-15 20:09:59,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-15 20:09:59,441 INFO L87 Difference]: Start difference. First operand has 11 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 10 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-15 20:09:59,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:09:59,461 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions.
[2024-09-15 20:09:59,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-09-15 20:09:59,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4
[2024-09-15 20:09:59,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:09:59,468 INFO L225 Difference]: With dead ends: 12
[2024-09-15 20:09:59,468 INFO L226 Difference]: Without dead ends: 11
[2024-09-15 20:09:59,470 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-15 20:09:59,474 INFO L434 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-15 20:09:59,475 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-15 20:09:59,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states.
[2024-09-15 20:09:59,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11.
[2024-09-15 20:09:59,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 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)
[2024-09-15 20:09:59,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions.
[2024-09-15 20:09:59,502 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 4
[2024-09-15 20:09:59,503 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:09:59,503 INFO L474 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions.
[2024-09-15 20:09:59,503 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-15 20:09:59,504 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions.
[2024-09-15 20:09:59,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2024-09-15 20:09:59,505 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-15 20:09:59,505 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2024-09-15 20:09:59,505 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-09-15 20:09:59,505 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION] ===
[2024-09-15 20:09:59,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:09:59,510 INFO L85 PathProgramCache]: Analyzing trace with hash 61109542, now seen corresponding path program 1 times
[2024-09-15 20:09:59,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:09:59,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755919272]
[2024-09-15 20:09:59,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:09:59,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:09:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:09:59,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-15 20:09:59,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:09:59,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755919272]
[2024-09-15 20:09:59,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755919272] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-15 20:09:59,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863798822]
[2024-09-15 20:09:59,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:09:59,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-15 20:09:59,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-15 20:09:59,617 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-15 20:09:59,619 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-09-15 20:09:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:09:59,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-09-15 20:09:59,677 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-15 20:09:59,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-15 20:09:59,714 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-15 20:09:59,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-15 20:09:59,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863798822] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-15 20:09:59,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-15 20:09:59,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6
[2024-09-15 20:09:59,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356524859]
[2024-09-15 20:09:59,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-15 20:09:59,732 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-09-15 20:09:59,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:09:59,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-09-15 20:09:59,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-09-15 20:09:59,733 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-15 20:09:59,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:09:59,750 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions.
[2024-09-15 20:09:59,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-09-15 20:09:59,750 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5
[2024-09-15 20:09:59,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:09:59,751 INFO L225 Difference]: With dead ends: 14
[2024-09-15 20:09:59,751 INFO L226 Difference]: Without dead ends: 14
[2024-09-15 20:09:59,752 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-09-15 20:09:59,752 INFO L434 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-15 20:09:59,753 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-15 20:09:59,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states.
[2024-09-15 20:09:59,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14.
[2024-09-15 20:09:59,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 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)
[2024-09-15 20:09:59,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions.
[2024-09-15 20:09:59,757 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5
[2024-09-15 20:09:59,757 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:09:59,757 INFO L474 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions.
[2024-09-15 20:09:59,757 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-15 20:09:59,758 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions.
[2024-09-15 20:09:59,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-09-15 20:09:59,758 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-15 20:09:59,758 INFO L216 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1]
[2024-09-15 20:09:59,770 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-09-15 20:09:59,958 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-15 20:09:59,959 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION] ===
[2024-09-15 20:09:59,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:09:59,960 INFO L85 PathProgramCache]: Analyzing trace with hash 268893096, now seen corresponding path program 2 times
[2024-09-15 20:09:59,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:09:59,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941377705]
[2024-09-15 20:09:59,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:09:59,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:09:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:10:00,090 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-15 20:10:00,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:10:00,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941377705]
[2024-09-15 20:10:00,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941377705] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-15 20:10:00,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220024186]
[2024-09-15 20:10:00,091 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-09-15 20:10:00,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-15 20:10:00,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-15 20:10:00,093 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-15 20:10:00,094 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-09-15 20:10:00,141 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-09-15 20:10:00,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-09-15 20:10:00,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-09-15 20:10:00,144 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-15 20:10:00,159 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-15 20:10:00,159 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-15 20:10:00,219 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-15 20:10:00,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220024186] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-15 20:10:00,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-15 20:10:00,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12
[2024-09-15 20:10:00,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373961261]
[2024-09-15 20:10:00,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-15 20:10:00,220 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-09-15 20:10:00,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:10:00,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-09-15 20:10:00,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2024-09-15 20:10:00,222 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 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)
[2024-09-15 20:10:00,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:10:00,236 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions.
[2024-09-15 20:10:00,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-09-15 20:10:00,237 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 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 8
[2024-09-15 20:10:00,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:10:00,237 INFO L225 Difference]: With dead ends: 20
[2024-09-15 20:10:00,237 INFO L226 Difference]: Without dead ends: 20
[2024-09-15 20:10:00,238 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2024-09-15 20:10:00,243 INFO L434 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-15 20:10:00,243 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-15 20:10:00,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states.
[2024-09-15 20:10:00,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20.
[2024-09-15 20:10:00,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 19 states have internal predecessors, (20), 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)
[2024-09-15 20:10:00,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions.
[2024-09-15 20:10:00,247 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 8
[2024-09-15 20:10:00,247 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:10:00,247 INFO L474 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions.
[2024-09-15 20:10:00,248 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 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)
[2024-09-15 20:10:00,248 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions.
[2024-09-15 20:10:00,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-09-15 20:10:00,248 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-15 20:10:00,248 INFO L216 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1]
[2024-09-15 20:10:00,261 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-09-15 20:10:00,449 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-15 20:10:00,449 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION] ===
[2024-09-15 20:10:00,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:10:00,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1750723304, now seen corresponding path program 3 times
[2024-09-15 20:10:00,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:10:00,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202027328]
[2024-09-15 20:10:00,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:10:00,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:10:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:10:00,738 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-15 20:10:00,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:10:00,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202027328]
[2024-09-15 20:10:00,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202027328] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-15 20:10:00,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035043778]
[2024-09-15 20:10:00,739 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-09-15 20:10:00,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-15 20:10:00,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-15 20:10:00,740 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-15 20:10:00,742 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-09-15 20:10:00,789 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2024-09-15 20:10:00,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-09-15 20:10:00,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-09-15 20:10:00,792 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-15 20:10:00,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2024-09-15 20:10:00,908 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2024-09-15 20:10:00,908 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-15 20:10:00,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035043778] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-15 20:10:00,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-09-15 20:10:00,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 16
[2024-09-15 20:10:00,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127028041]
[2024-09-15 20:10:00,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-15 20:10:00,909 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-15 20:10:00,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:10:00,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-15 20:10:00,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240
[2024-09-15 20:10:00,912 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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)
[2024-09-15 20:10:04,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-09-15 20:10:04,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:10:04,937 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions.
[2024-09-15 20:10:04,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-09-15 20:10:04,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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 14
[2024-09-15 20:10:04,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:10:04,938 INFO L225 Difference]: With dead ends: 18
[2024-09-15 20:10:04,938 INFO L226 Difference]: Without dead ends: 17
[2024-09-15 20:10:04,938 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240
[2024-09-15 20:10:04,939 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time
[2024-09-15 20:10:04,939 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 9 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time]
[2024-09-15 20:10:04,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states.
[2024-09-15 20:10:04,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17.
[2024-09-15 20:10:04,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 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)
[2024-09-15 20:10:04,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions.
[2024-09-15 20:10:04,942 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14
[2024-09-15 20:10:04,942 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:10:04,942 INFO L474 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions.
[2024-09-15 20:10:04,942 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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)
[2024-09-15 20:10:04,942 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions.
[2024-09-15 20:10:04,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-09-15 20:10:04,943 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-15 20:10:04,943 INFO L216 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1]
[2024-09-15 20:10:04,956 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-09-15 20:10:05,143 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-15 20:10:05,144 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION] ===
[2024-09-15 20:10:05,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:10:05,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1182083253, now seen corresponding path program 1 times
[2024-09-15 20:10:05,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:10:05,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059492694]
[2024-09-15 20:10:05,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:10:05,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:10:05,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:10:05,216 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked.
[2024-09-15 20:10:05,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:10:05,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059492694]
[2024-09-15 20:10:05,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059492694] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-15 20:10:05,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-15 20:10:05,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-15 20:10:05,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95314054]
[2024-09-15 20:10:05,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-15 20:10:05,218 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-15 20:10:05,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:10:05,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-15 20:10:05,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-15 20:10:05,219 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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)
[2024-09-15 20:10:05,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:10:05,223 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions.
[2024-09-15 20:10:05,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-09-15 20:10:05,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 16
[2024-09-15 20:10:05,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:10:05,224 INFO L225 Difference]: With dead ends: 15
[2024-09-15 20:10:05,224 INFO L226 Difference]: Without dead ends: 0
[2024-09-15 20:10:05,224 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-15 20:10:05,225 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-15 20:10:05,225 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-15 20:10:05,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-09-15 20:10:05,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-09-15 20:10:05,226 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)
[2024-09-15 20:10:05,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-09-15 20:10:05,226 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16
[2024-09-15 20:10:05,226 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:10:05,227 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-09-15 20:10:05,227 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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)
[2024-09-15 20:10:05,227 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-09-15 20:10:05,227 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-09-15 20:10:05,229 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION (2 of 3 remaining)
[2024-09-15 20:10:05,229 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining)
[2024-09-15 20:10:05,230 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION (0 of 3 remaining)
[2024-09-15 20:10:05,230 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-09-15 20:10:05,232 INFO L408 BasicCegarLoop]: Path program histogram: [3, 1, 1]
[2024-09-15 20:10:05,234 INFO L165 ceAbstractionStarter]: Computing trace abstraction results
[2024-09-15 20:10:05,235 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 08:10:05 BoogieIcfgContainer
[2024-09-15 20:10:05,235 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-09-15 20:10:05,236 INFO L158 Benchmark]: Toolchain (without parser) took 6599.36ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 51.4MB in the beginning and 69.7MB in the end (delta: -18.3MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB.
[2024-09-15 20:10:05,236 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 75.5MB. Free memory is still 53.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-15 20:10:05,236 INFO L158 Benchmark]: Witness Parser took 0.09ms. Allocated memory is still 75.5MB. Free memory is still 53.3MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-15 20:10:05,237 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.20ms. Allocated memory is still 75.5MB. Free memory was 51.1MB in the beginning and 38.3MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-09-15 20:10:05,237 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.33ms. Allocated memory is still 75.5MB. Free memory was 38.3MB in the beginning and 36.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-15 20:10:05,237 INFO L158 Benchmark]: Boogie Preprocessor took 39.48ms. Allocated memory is still 75.5MB. Free memory was 36.9MB in the beginning and 35.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-15 20:10:05,237 INFO L158 Benchmark]: RCFGBuilder took 256.96ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 35.1MB in the beginning and 67.3MB in the end (delta: -32.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-09-15 20:10:05,237 INFO L158 Benchmark]: TraceAbstraction took 6050.75ms. Allocated memory is still 96.5MB. Free memory was 66.4MB in the beginning and 69.7MB in the end (delta: -3.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-15 20:10:05,238 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.12ms. Allocated memory is still 75.5MB. Free memory is still 53.9MB. There was no memory consumed. Max. memory is 16.1GB.
* Witness Parser took 0.09ms. Allocated memory is still 75.5MB. Free memory is still 53.3MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 221.20ms. Allocated memory is still 75.5MB. Free memory was 51.1MB in the beginning and 38.3MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 25.33ms. Allocated memory is still 75.5MB. Free memory was 38.3MB in the beginning and 36.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 39.48ms. Allocated memory is still 75.5MB. Free memory was 36.9MB in the beginning and 35.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 256.96ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 35.1MB in the beginning and 67.3MB in the end (delta: -32.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* TraceAbstraction took 6050.75ms. Allocated memory is still 96.5MB. Free memory was 66.4MB in the beginning and 69.7MB in the end (delta: -3.2MB). 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: 5]: procedure precondition always holds
For all program executions holds that procedure precondition always holds at this location
- PositiveResult [Line: 7]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- PositiveResult [Line: 5]: procedure postcondition always holds
For all program executions holds that procedure postcondition always holds at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 11 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6.0s, OverallIterations: 5, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 30 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=3, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 74 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 77 ConstructedInterpolants, 1 QuantifiedInterpolants, 176 SizeOfPredicates, 2 NumberOfNonLiveVariables, 172 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 110/198 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
3 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-09-15 20:10:05,257 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...