This is Ultimate 0.2.4-dev-1d5fa63-m
[2024-09-13 10:20:19,811 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-09-13 10:20:19,880 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-09-13 10:20:19,886 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-09-13 10:20:19,887 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-13 10:20:19,917 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-13 10:20:19,918 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-13 10:20:19,918 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-13 10:20:19,919 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-13 10:20:19,920 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-09-13 10:20:19,921 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-13 10:20:19,921 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-13 10:20:19,921 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-13 10:20:19,922 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-09-13 10:20:19,923 INFO L153 SettingsManager]: * Use SBE=true
[2024-09-13 10:20:19,924 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-13 10:20:19,924 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-09-13 10:20:19,924 INFO L153 SettingsManager]: * sizeof long=4
[2024-09-13 10:20:19,925 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-09-13 10:20:19,925 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-09-13 10:20:19,925 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-09-13 10:20:19,928 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-09-13 10:20:19,928 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-13 10:20:19,928 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-09-13 10:20:19,928 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-09-13 10:20:19,929 INFO L153 SettingsManager]: * sizeof long double=12
[2024-09-13 10:20:19,929 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-09-13 10:20:19,929 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-09-13 10:20:19,930 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-13 10:20:19,930 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-09-13 10:20:19,930 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-09-13 10:20:19,930 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-09-13 10:20:19,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-13 10:20:19,931 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-13 10:20:19,931 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-09-13 10:20:19,931 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-13 10:20:19,931 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-09-13 10:20:19,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-09-13 10:20:19,933 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-13 10:20:19,933 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-13 10:20:19,933 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-09-13 10:20:19,934 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-13 10:20:19,934 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None
[2024-09-13 10:20:20,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-13 10:20:20,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-13 10:20:20,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-13 10:20:20,197 INFO L270 PluginConnector]: Initializing Witness Parser...
[2024-09-13 10:20:20,198 INFO L274 PluginConnector]: Witness Parser initialized
[2024-09-13 10:20:20,199 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/hard2_valuebound50.yml/witness-2.1.yml
[2024-09-13 10:20:20,277 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-09-13 10:20:20,278 INFO L274 PluginConnector]: CDTParser initialized
[2024-09-13 10:20:20,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound50.c
[2024-09-13 10:20:21,718 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-09-13 10:20:21,914 INFO L384 CDTParser]: Found 1 translation units.
[2024-09-13 10:20:21,917 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound50.c
[2024-09-13 10:20:21,926 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/9d756cf03/d4b6d91d8d7f4abb8ddd230fbe928ac3/FLAG065ca774e
[2024-09-13 10:20:22,295 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/9d756cf03/d4b6d91d8d7f4abb8ddd230fbe928ac3
[2024-09-13 10:20:22,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-13 10:20:22,297 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements.
[2024-09-13 10:20:22,299 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-13 10:20:22,300 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-13 10:20:22,305 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-13 10:20:22,305 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:20:20" (1/2) ...
[2024-09-13 10:20:22,306 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cb2d076 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:20:22, skipping insertion in model container
[2024-09-13 10:20:22,306 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:20:20" (1/2) ...
[2024-09-13 10:20:22,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@54f8bc28 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:20:22, skipping insertion in model container
[2024-09-13 10:20:22,308 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:20:22" (2/2) ...
[2024-09-13 10:20:22,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cb2d076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:20:22, skipping insertion in model container
[2024-09-13 10:20:22,311 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:20:22" (2/2) ...
[2024-09-13 10:20:22,319 INFO L93 nessWitnessExtractor]: Found the following entries in the witness:
[2024-09-13 10:20:22,320 INFO L1541 ArrayList]: Loop invariant at [L44-L56] ((((A == (q + r)) && (d == p)) && (1 <= p)) && (B == 1))
[2024-09-13 10:20:22,320 INFO L1541 ArrayList]: Loop invariant at [L34-L42] ((((((((A == r) && (p == 2)) && (d == 2)) && (q == 0)) && (B == 1)) || (((((A == r) && ((A + d) == (p + r))) && (8 <= p)) && (q == 0)) && (B == 1))) || ((((((A == r) && (d == 4)) && (2 <= r)) && (q == 0)) && (B == 1)) && (p == 4))) || (((((A == r) && (d == 1)) && (q == 0)) && (B == 1)) && (p == 1)))
[2024-09-13 10:20:22,323 INFO L1541 ArrayList]: Function contract at [L14]: requires (\old(cond) != 0), ensures (\old(cond) != 0)
[2024-09-13 10:20:22,341 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-09-13 10:20:22,519 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound50.c[526,539]
[2024-09-13 10:20:22,547 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-13 10:20:22,563 INFO L200 MainTranslator]: Completed pre-run
Start Parsing Global
Start Parsing Global
[2024-09-13 10:20:22,639 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound50.c[526,539]
Start Parsing Local
Start Parsing Local
[2024-09-13 10:20:22,666 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-13 10:20:22,706 INFO L204 MainTranslator]: Completed translation
[2024-09-13 10:20:22,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:20:22 WrapperNode
[2024-09-13 10:20:22,707 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-13 10:20:22,709 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-09-13 10:20:22,709 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-09-13 10:20:22,709 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-09-13 10:20:22,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:20:22" (1/1) ...
[2024-09-13 10:20:22,721 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:20:22" (1/1) ...
[2024-09-13 10:20:22,741 INFO L138 Inliner]: procedures = 14, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64
[2024-09-13 10:20:22,742 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-09-13 10:20:22,743 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-13 10:20:22,744 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-13 10:20:22,744 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-09-13 10:20:22,754 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:20:22" (1/1) ...
[2024-09-13 10:20:22,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:20:22" (1/1) ...
[2024-09-13 10:20:22,758 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:20:22" (1/1) ...
[2024-09-13 10:20:22,771 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification
[2024-09-13 10:20:22,775 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:20:22" (1/1) ...
[2024-09-13 10:20:22,775 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:20:22" (1/1) ...
[2024-09-13 10:20:22,782 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:20:22" (1/1) ...
[2024-09-13 10:20:22,785 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:20:22" (1/1) ...
[2024-09-13 10:20:22,788 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:20:22" (1/1) ...
[2024-09-13 10:20:22,789 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:20:22" (1/1) ...
[2024-09-13 10:20:22,793 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-13 10:20:22,793 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-13 10:20:22,793 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-09-13 10:20:22,794 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-09-13 10:20:22,794 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:20:22" (1/1) ...
[2024-09-13 10:20:22,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-13 10:20:22,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-13 10:20:22,827 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)
[2024-09-13 10:20:22,831 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
[2024-09-13 10:20:22,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-13 10:20:22,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2024-09-13 10:20:22,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-13 10:20:22,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-13 10:20:22,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-09-13 10:20:22,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-09-13 10:20:22,928 INFO L242 CfgBuilder]: Building ICFG
[2024-09-13 10:20:22,930 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-13 10:20:23,084 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2024-09-13 10:20:23,119 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live.
[2024-09-13 10:20:23,120 INFO L291 CfgBuilder]: Performing block encoding
[2024-09-13 10:20:23,150 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-13 10:20:23,150 INFO L318 CfgBuilder]: Removed 2 assume(true) statements.
[2024-09-13 10:20:23,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:20:23 BoogieIcfgContainer
[2024-09-13 10:20:23,150 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-13 10:20:23,153 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-09-13 10:20:23,153 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-09-13 10:20:23,157 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-09-13 10:20:23,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:20:20" (1/4) ...
[2024-09-13 10:20:23,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@81b6e91 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.09 10:20:23, skipping insertion in model container
[2024-09-13 10:20:23,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.09 10:20:22" (2/4) ...
[2024-09-13 10:20:23,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@81b6e91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 10:20:23, skipping insertion in model container
[2024-09-13 10:20:23,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:20:22" (3/4) ...
[2024-09-13 10:20:23,159 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@81b6e91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 10:20:23, skipping insertion in model container
[2024-09-13 10:20:23,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:20:23" (4/4) ...
[2024-09-13 10:20:23,160 INFO L112 eAbstractionObserver]: Analyzing ICFG hard2_valuebound50.c
[2024-09-13 10:20:23,174 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-09-13 10:20:23,174 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations.
[2024-09-13 10:20:23,230 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-09-13 10:20:23,237 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;@529ec46a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-13 10:20:23,238 INFO L337 AbstractCegarLoop]: Starting to check reachability of 11 error locations.
[2024-09-13 10:20:23,241 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 26 states have internal predecessors, (35), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-09-13 10:20:23,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2024-09-13 10:20:23,246 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 10:20:23,247 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2024-09-13 10:20:23,247 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 8 more)] ===
[2024-09-13 10:20:23,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 10:20:23,254 INFO L85 PathProgramCache]: Analyzing trace with hash 3877925, now seen corresponding path program 1 times
[2024-09-13 10:20:23,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 10:20:23,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139118015]
[2024-09-13 10:20:23,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:20:23,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 10:20:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:23,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 10:20:23,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 10:20:23,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139118015]
[2024-09-13 10:20:23,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139118015] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-13 10:20:23,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-13 10:20:23,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-13 10:20:23,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934655220]
[2024-09-13 10:20:23,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-13 10:20:23,430 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-13 10:20:23,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 10:20:23,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-13 10:20:23,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-13 10:20:23,458 INFO L87 Difference]: Start difference. First operand has 35 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 26 states have internal predecessors, (35), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 2.0) 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)
[2024-09-13 10:20:23,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 10:20:23,493 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions.
[2024-09-13 10:20:23,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-09-13 10:20:23,495 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) 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
[2024-09-13 10:20:23,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 10:20:23,501 INFO L225 Difference]: With dead ends: 35
[2024-09-13 10:20:23,501 INFO L226 Difference]: Without dead ends: 33
[2024-09-13 10:20:23,503 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-13 10:20:23,505 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-13 10:20:23,506 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-13 10:20:23,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2024-09-13 10:20:23,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33.
[2024-09-13 10:20:23,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 25 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-09-13 10:20:23,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions.
[2024-09-13 10:20:23,531 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 4
[2024-09-13 10:20:23,531 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 10:20:23,531 INFO L474 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions.
[2024-09-13 10:20:23,532 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) 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)
[2024-09-13 10:20:23,532 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions.
[2024-09-13 10:20:23,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2024-09-13 10:20:23,532 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 10:20:23,532 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2024-09-13 10:20:23,532 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-09-13 10:20:23,533 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 8 more)] ===
[2024-09-13 10:20:23,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 10:20:23,534 INFO L85 PathProgramCache]: Analyzing trace with hash 3879847, now seen corresponding path program 1 times
[2024-09-13 10:20:23,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 10:20:23,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104090323]
[2024-09-13 10:20:23,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:20:23,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 10:20:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:23,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 10:20:23,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 10:20:23,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104090323]
[2024-09-13 10:20:23,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104090323] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-13 10:20:23,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-13 10:20:23,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-13 10:20:23,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215097290]
[2024-09-13 10:20:23,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-13 10:20:23,662 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-13 10:20:23,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 10:20:23,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-13 10:20:23,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-13 10:20:23,666 INFO L87 Difference]: Start difference. First operand 33 states and 41 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:20:23,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 10:20:23,740 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions.
[2024-09-13 10:20:23,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-09-13 10:20:23,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4
[2024-09-13 10:20:23,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 10:20:23,741 INFO L225 Difference]: With dead ends: 44
[2024-09-13 10:20:23,742 INFO L226 Difference]: Without dead ends: 44
[2024-09-13 10:20:23,742 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
[2024-09-13 10:20:23,744 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 5 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-13 10:20:23,745 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 55 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-13 10:20:23,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2024-09-13 10:20:23,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44.
[2024-09-13 10:20:23,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 31 states have internal predecessors, (35), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-09-13 10:20:23,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 58 transitions.
[2024-09-13 10:20:23,756 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 58 transitions. Word has length 4
[2024-09-13 10:20:23,756 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 10:20:23,756 INFO L474 AbstractCegarLoop]: Abstraction has 44 states and 58 transitions.
[2024-09-13 10:20:23,757 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:20:23,757 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions.
[2024-09-13 10:20:23,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-09-13 10:20:23,758 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 10:20:23,758 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-13 10:20:23,758 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-09-13 10:20:23,758 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 8 more)] ===
[2024-09-13 10:20:23,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 10:20:23,759 INFO L85 PathProgramCache]: Analyzing trace with hash 331112384, now seen corresponding path program 1 times
[2024-09-13 10:20:23,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 10:20:23,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586137353]
[2024-09-13 10:20:23,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:20:23,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 10:20:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:23,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 10:20:23,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 10:20:23,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586137353]
[2024-09-13 10:20:23,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586137353] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-13 10:20:23,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-13 10:20:23,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-13 10:20:23,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53031520]
[2024-09-13 10:20:23,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-13 10:20:23,841 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-13 10:20:23,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 10:20:23,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-13 10:20:23,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-13 10:20:23,842 INFO L87 Difference]: Start difference. First operand 44 states and 58 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:20:23,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 10:20:23,885 INFO L93 Difference]: Finished difference Result 43 states and 57 transitions.
[2024-09-13 10:20:23,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-09-13 10:20:23,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2024-09-13 10:20:23,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 10:20:23,887 INFO L225 Difference]: With dead ends: 43
[2024-09-13 10:20:23,887 INFO L226 Difference]: Without dead ends: 43
[2024-09-13 10:20:23,888 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
[2024-09-13 10:20:23,890 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 3 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-13 10:20:23,893 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 52 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-13 10:20:23,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2024-09-13 10:20:23,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43.
[2024-09-13 10:20:23,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 30 states have internal predecessors, (34), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-09-13 10:20:23,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions.
[2024-09-13 10:20:23,901 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 9
[2024-09-13 10:20:23,901 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 10:20:23,902 INFO L474 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions.
[2024-09-13 10:20:23,902 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:20:23,902 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions.
[2024-09-13 10:20:23,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-09-13 10:20:23,902 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 10:20:23,903 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-13 10:20:23,903 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-09-13 10:20:23,903 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 8 more)] ===
[2024-09-13 10:20:23,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 10:20:23,904 INFO L85 PathProgramCache]: Analyzing trace with hash 331112223, now seen corresponding path program 1 times
[2024-09-13 10:20:23,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 10:20:23,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552263745]
[2024-09-13 10:20:23,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:20:23,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 10:20:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:23,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 10:20:23,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 10:20:23,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552263745]
[2024-09-13 10:20:23,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552263745] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-13 10:20:23,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-13 10:20:23,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-13 10:20:23,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366361223]
[2024-09-13 10:20:23,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-13 10:20:23,962 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-13 10:20:23,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 10:20:23,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-13 10:20:23,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-13 10:20:23,963 INFO L87 Difference]: Start difference. First operand 43 states and 57 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:20:23,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 10:20:23,977 INFO L93 Difference]: Finished difference Result 41 states and 55 transitions.
[2024-09-13 10:20:23,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-09-13 10:20:23,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2024-09-13 10:20:23,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 10:20:23,979 INFO L225 Difference]: With dead ends: 41
[2024-09-13 10:20:23,980 INFO L226 Difference]: Without dead ends: 41
[2024-09-13 10:20:23,980 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-13 10:20:23,982 INFO L434 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-13 10:20:23,982 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-13 10:20:23,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2024-09-13 10:20:23,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41.
[2024-09-13 10:20:23,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 28 states have internal predecessors, (32), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-09-13 10:20:23,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 54 transitions.
[2024-09-13 10:20:23,990 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 54 transitions. Word has length 9
[2024-09-13 10:20:23,990 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 10:20:23,991 INFO L474 AbstractCegarLoop]: Abstraction has 41 states and 54 transitions.
[2024-09-13 10:20:23,991 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:20:23,991 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 54 transitions.
[2024-09-13 10:20:23,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2024-09-13 10:20:23,992 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 10:20:23,992 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-13 10:20:23,992 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-09-13 10:20:23,992 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 8 more)] ===
[2024-09-13 10:20:23,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 10:20:23,993 INFO L85 PathProgramCache]: Analyzing trace with hash 938055942, now seen corresponding path program 1 times
[2024-09-13 10:20:23,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 10:20:23,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797588002]
[2024-09-13 10:20:23,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:20:23,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 10:20:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:24,293 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-13 10:20:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:24,314 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-13 10:20:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:24,334 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2024-09-13 10:20:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:24,350 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-09-13 10:20:24,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 10:20:24,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797588002]
[2024-09-13 10:20:24,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797588002] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-13 10:20:24,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269111744]
[2024-09-13 10:20:24,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:20:24,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 10:20:24,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-13 10:20:24,359 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)
[2024-09-13 10:20:24,361 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-09-13 10:20:24,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:24,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-09-13 10:20:24,428 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-13 10:20:24,582 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-09-13 10:20:24,583 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-13 10:20:24,714 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-09-13 10:20:24,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269111744] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-13 10:20:24,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-13 10:20:24,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3
[2024-09-13 10:20:24,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235142918]
[2024-09-13 10:20:24,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-13 10:20:24,719 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-09-13 10:20:24,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 10:20:24,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-09-13 10:20:24,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-09-13 10:20:24,720 INFO L87 Difference]: Start difference. First operand 41 states and 54 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-09-13 10:20:24,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 10:20:24,841 INFO L93 Difference]: Finished difference Result 58 states and 80 transitions.
[2024-09-13 10:20:24,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-09-13 10:20:24,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22
[2024-09-13 10:20:24,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 10:20:24,843 INFO L225 Difference]: With dead ends: 58
[2024-09-13 10:20:24,845 INFO L226 Difference]: Without dead ends: 58
[2024-09-13 10:20:24,845 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-09-13 10:20:24,846 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 9 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-13 10:20:24,847 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 73 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-13 10:20:24,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states.
[2024-09-13 10:20:24,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 53.
[2024-09-13 10:20:24,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 35 states have internal predecessors, (41), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-09-13 10:20:24,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 73 transitions.
[2024-09-13 10:20:24,865 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 73 transitions. Word has length 22
[2024-09-13 10:20:24,865 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 10:20:24,865 INFO L474 AbstractCegarLoop]: Abstraction has 53 states and 73 transitions.
[2024-09-13 10:20:24,866 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-09-13 10:20:24,866 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 73 transitions.
[2024-09-13 10:20:24,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2024-09-13 10:20:24,867 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 10:20:24,867 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-13 10:20:24,883 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-09-13 10:20:25,067 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 10:20:25,068 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 8 more)] ===
[2024-09-13 10:20:25,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 10:20:25,068 INFO L85 PathProgramCache]: Analyzing trace with hash -987888612, now seen corresponding path program 1 times
[2024-09-13 10:20:25,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 10:20:25,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213489869]
[2024-09-13 10:20:25,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:20:25,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 10:20:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-13 10:20:25,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1850384310]
[2024-09-13 10:20:25,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:20:25,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 10:20:25,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-13 10:20:25,109 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)
[2024-09-13 10:20:25,110 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-09-13 10:20:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:25,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-09-13 10:20:25,164 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-13 10:20:25,233 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2024-09-13 10:20:25,234 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-13 10:20:25,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 10:20:25,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213489869]
[2024-09-13 10:20:25,235 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-13 10:20:25,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850384310]
[2024-09-13 10:20:25,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850384310] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-13 10:20:25,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-13 10:20:25,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-13 10:20:25,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916828933]
[2024-09-13 10:20:25,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-13 10:20:25,237 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-13 10:20:25,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 10:20:25,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-13 10:20:25,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-13 10:20:25,238 INFO L87 Difference]: Start difference. First operand 53 states and 73 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5)
[2024-09-13 10:20:25,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 10:20:25,274 INFO L93 Difference]: Finished difference Result 61 states and 86 transitions.
[2024-09-13 10:20:25,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-09-13 10:20:25,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 35
[2024-09-13 10:20:25,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 10:20:25,275 INFO L225 Difference]: With dead ends: 61
[2024-09-13 10:20:25,276 INFO L226 Difference]: Without dead ends: 61
[2024-09-13 10:20:25,276 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-13 10:20:25,277 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 6 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-13 10:20:25,278 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 44 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-13 10:20:25,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states.
[2024-09-13 10:20:25,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 58.
[2024-09-13 10:20:25,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 38 states have internal predecessors, (47), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19)
[2024-09-13 10:20:25,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 85 transitions.
[2024-09-13 10:20:25,290 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 85 transitions. Word has length 35
[2024-09-13 10:20:25,290 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 10:20:25,290 INFO L474 AbstractCegarLoop]: Abstraction has 58 states and 85 transitions.
[2024-09-13 10:20:25,290 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5)
[2024-09-13 10:20:25,290 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 85 transitions.
[2024-09-13 10:20:25,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2024-09-13 10:20:25,291 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 10:20:25,291 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-13 10:20:25,307 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-09-13 10:20:25,492 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2024-09-13 10:20:25,492 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 8 more)] ===
[2024-09-13 10:20:25,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 10:20:25,493 INFO L85 PathProgramCache]: Analyzing trace with hash -105745616, now seen corresponding path program 1 times
[2024-09-13 10:20:25,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 10:20:25,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015847211]
[2024-09-13 10:20:25,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:20:25,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 10:20:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:25,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-13 10:20:25,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:25,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-13 10:20:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:25,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2024-09-13 10:20:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:25,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-13 10:20:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:25,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2024-09-13 10:20:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:25,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34
[2024-09-13 10:20:25,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:25,602 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2024-09-13 10:20:25,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 10:20:25,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015847211]
[2024-09-13 10:20:25,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015847211] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-13 10:20:25,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-13 10:20:25,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-13 10:20:25,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038654748]
[2024-09-13 10:20:25,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-13 10:20:25,603 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-13 10:20:25,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 10:20:25,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-13 10:20:25,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-13 10:20:25,605 INFO L87 Difference]: Start difference. First operand 58 states and 85 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6)
[2024-09-13 10:20:25,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 10:20:25,636 INFO L93 Difference]: Finished difference Result 65 states and 94 transitions.
[2024-09-13 10:20:25,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-09-13 10:20:25,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 40
[2024-09-13 10:20:25,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 10:20:25,638 INFO L225 Difference]: With dead ends: 65
[2024-09-13 10:20:25,638 INFO L226 Difference]: Without dead ends: 58
[2024-09-13 10:20:25,639 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-13 10:20:25,640 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-13 10:20:25,640 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-13 10:20:25,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states.
[2024-09-13 10:20:25,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58.
[2024-09-13 10:20:25,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 38 states have internal predecessors, (46), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19)
[2024-09-13 10:20:25,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions.
[2024-09-13 10:20:25,646 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 40
[2024-09-13 10:20:25,646 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 10:20:25,647 INFO L474 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions.
[2024-09-13 10:20:25,647 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6)
[2024-09-13 10:20:25,647 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions.
[2024-09-13 10:20:25,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2024-09-13 10:20:25,648 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 10:20:25,648 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1]
[2024-09-13 10:20:25,649 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-09-13 10:20:25,649 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 8 more)] ===
[2024-09-13 10:20:25,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 10:20:25,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1427962715, now seen corresponding path program 2 times
[2024-09-13 10:20:25,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 10:20:25,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297664663]
[2024-09-13 10:20:25,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:20:25,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 10:20:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:25,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-13 10:20:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:25,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-13 10:20:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:25,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2024-09-13 10:20:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:25,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-13 10:20:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:25,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2024-09-13 10:20:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:25,956 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-09-13 10:20:25,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:25,963 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2024-09-13 10:20:25,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 10:20:25,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297664663]
[2024-09-13 10:20:25,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297664663] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-13 10:20:25,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922794944]
[2024-09-13 10:20:25,967 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-09-13 10:20:25,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 10:20:25,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-13 10:20:25,969 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)
[2024-09-13 10:20:25,974 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-09-13 10:20:26,023 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-09-13 10:20:26,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-09-13 10:20:26,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-09-13 10:20:26,026 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-13 10:20:26,175 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2024-09-13 10:20:26,175 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-13 10:20:26,435 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2024-09-13 10:20:26,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922794944] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-13 10:20:26,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-13 10:20:26,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6
[2024-09-13 10:20:26,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423838675]
[2024-09-13 10:20:26,436 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-13 10:20:26,438 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-09-13 10:20:26,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 10:20:26,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-09-13 10:20:26,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-09-13 10:20:26,440 INFO L87 Difference]: Start difference. First operand 58 states and 84 transitions. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12)
[2024-09-13 10:20:26,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 10:20:26,746 INFO L93 Difference]: Finished difference Result 96 states and 151 transitions.
[2024-09-13 10:20:26,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-09-13 10:20:26,747 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 40
[2024-09-13 10:20:26,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 10:20:26,749 INFO L225 Difference]: With dead ends: 96
[2024-09-13 10:20:26,749 INFO L226 Difference]: Without dead ends: 96
[2024-09-13 10:20:26,750 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110
[2024-09-13 10:20:26,750 INFO L434 NwaCegarLoop]: 50 mSDtfsCounter, 28 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-09-13 10:20:26,750 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 156 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-09-13 10:20:26,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states.
[2024-09-13 10:20:26,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 70.
[2024-09-13 10:20:26,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 45 states have internal predecessors, (55), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24)
[2024-09-13 10:20:26,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 103 transitions.
[2024-09-13 10:20:26,763 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 103 transitions. Word has length 40
[2024-09-13 10:20:26,763 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 10:20:26,763 INFO L474 AbstractCegarLoop]: Abstraction has 70 states and 103 transitions.
[2024-09-13 10:20:26,763 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12)
[2024-09-13 10:20:26,763 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions.
[2024-09-13 10:20:26,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2024-09-13 10:20:26,767 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 10:20:26,767 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-13 10:20:26,784 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-09-13 10:20:26,968 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7
[2024-09-13 10:20:26,968 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 8 more)] ===
[2024-09-13 10:20:26,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 10:20:26,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1366577296, now seen corresponding path program 1 times
[2024-09-13 10:20:26,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 10:20:26,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156085420]
[2024-09-13 10:20:26,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:20:26,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 10:20:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:27,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-13 10:20:27,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:27,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-13 10:20:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:27,435 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2024-09-13 10:20:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:27,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-13 10:20:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:27,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2024-09-13 10:20:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:27,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-09-13 10:20:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:27,490 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41
[2024-09-13 10:20:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:27,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2024-09-13 10:20:27,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:27,520 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked.
[2024-09-13 10:20:27,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 10:20:27,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156085420]
[2024-09-13 10:20:27,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156085420] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-13 10:20:27,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428360487]
[2024-09-13 10:20:27,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:20:27,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 10:20:27,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-13 10:20:27,523 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-13 10:20:27,525 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-09-13 10:20:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:27,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-09-13 10:20:27,581 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-13 10:20:27,822 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked.
[2024-09-13 10:20:27,822 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-13 10:20:28,273 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked.
[2024-09-13 10:20:28,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428360487] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-13 10:20:28,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-13 10:20:28,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 5] total 11
[2024-09-13 10:20:28,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367054236]
[2024-09-13 10:20:28,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-13 10:20:28,274 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-09-13 10:20:28,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 10:20:28,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-09-13 10:20:28,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132
[2024-09-13 10:20:28,277 INFO L87 Difference]: Start difference. First operand 70 states and 103 transitions. Second operand has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21)
[2024-09-13 10:20:28,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 10:20:28,458 INFO L93 Difference]: Finished difference Result 87 states and 127 transitions.
[2024-09-13 10:20:28,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-09-13 10:20:28,458 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 54
[2024-09-13 10:20:28,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 10:20:28,459 INFO L225 Difference]: With dead ends: 87
[2024-09-13 10:20:28,459 INFO L226 Difference]: Without dead ends: 87
[2024-09-13 10:20:28,459 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156
[2024-09-13 10:20:28,460 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 25 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-13 10:20:28,460 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 157 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-13 10:20:28,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states.
[2024-09-13 10:20:28,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 82.
[2024-09-13 10:20:28,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 51 states have internal predecessors, (60), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30)
[2024-09-13 10:20:28,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 120 transitions.
[2024-09-13 10:20:28,474 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 120 transitions. Word has length 54
[2024-09-13 10:20:28,474 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 10:20:28,474 INFO L474 AbstractCegarLoop]: Abstraction has 82 states and 120 transitions.
[2024-09-13 10:20:28,475 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21)
[2024-09-13 10:20:28,475 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 120 transitions.
[2024-09-13 10:20:28,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2024-09-13 10:20:28,476 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 10:20:28,476 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1]
[2024-09-13 10:20:28,493 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-09-13 10:20:28,676 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 10:20:28,677 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 8 more)] ===
[2024-09-13 10:20:28,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 10:20:28,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1521850748, now seen corresponding path program 3 times
[2024-09-13 10:20:28,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 10:20:28,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400702846]
[2024-09-13 10:20:28,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:20:28,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 10:20:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:28,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-13 10:20:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:28,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-13 10:20:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:28,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2024-09-13 10:20:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:28,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-13 10:20:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:28,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2024-09-13 10:20:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:28,923 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-09-13 10:20:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:28,929 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41
[2024-09-13 10:20:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:28,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2024-09-13 10:20:28,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:28,940 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51
[2024-09-13 10:20:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:28,950 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2024-09-13 10:20:28,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 10:20:28,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400702846]
[2024-09-13 10:20:28,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400702846] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-13 10:20:28,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396843438]
[2024-09-13 10:20:28,951 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-09-13 10:20:28,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 10:20:28,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-13 10:20:28,953 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-13 10:20:28,955 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-09-13 10:20:29,003 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2024-09-13 10:20:29,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-09-13 10:20:29,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-09-13 10:20:29,006 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-13 10:20:29,440 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked.
[2024-09-13 10:20:29,440 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-13 10:20:29,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396843438] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-13 10:20:29,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-09-13 10:20:29,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8
[2024-09-13 10:20:29,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473394932]
[2024-09-13 10:20:29,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-13 10:20:29,441 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-13 10:20:29,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 10:20:29,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-13 10:20:29,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2024-09-13 10:20:29,442 INFO L87 Difference]: Start difference. First operand 82 states and 120 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6)
[2024-09-13 10:20:29,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 10:20:29,523 INFO L93 Difference]: Finished difference Result 93 states and 137 transitions.
[2024-09-13 10:20:29,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-09-13 10:20:29,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 58
[2024-09-13 10:20:29,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 10:20:29,524 INFO L225 Difference]: With dead ends: 93
[2024-09-13 10:20:29,524 INFO L226 Difference]: Without dead ends: 93
[2024-09-13 10:20:29,525 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2024-09-13 10:20:29,525 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 19 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-13 10:20:29,525 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 69 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-13 10:20:29,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states.
[2024-09-13 10:20:29,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 81.
[2024-09-13 10:20:29,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 49 states have (on average 1.2040816326530612) internal successors, (59), 50 states have internal predecessors, (59), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30)
[2024-09-13 10:20:29,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 119 transitions.
[2024-09-13 10:20:29,532 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 119 transitions. Word has length 58
[2024-09-13 10:20:29,533 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 10:20:29,533 INFO L474 AbstractCegarLoop]: Abstraction has 81 states and 119 transitions.
[2024-09-13 10:20:29,533 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6)
[2024-09-13 10:20:29,533 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 119 transitions.
[2024-09-13 10:20:29,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2024-09-13 10:20:29,534 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 10:20:29,534 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-13 10:20:29,551 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-09-13 10:20:29,738 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-09-13 10:20:29,739 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 8 more)] ===
[2024-09-13 10:20:29,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 10:20:29,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1043261556, now seen corresponding path program 1 times
[2024-09-13 10:20:29,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 10:20:29,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452443701]
[2024-09-13 10:20:29,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:20:29,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 10:20:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-13 10:20:29,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1143692815]
[2024-09-13 10:20:29,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:20:29,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 10:20:29,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-13 10:20:29,762 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-13 10:20:29,764 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-09-13 10:20:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:29,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-09-13 10:20:29,821 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-13 10:20:29,944 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked.
[2024-09-13 10:20:29,945 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-13 10:20:30,136 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked.
[2024-09-13 10:20:30,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 10:20:30,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452443701]
[2024-09-13 10:20:30,137 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-13 10:20:30,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143692815]
[2024-09-13 10:20:30,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143692815] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-13 10:20:30,138 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-09-13 10:20:30,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9
[2024-09-13 10:20:30,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003266098]
[2024-09-13 10:20:30,138 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-09-13 10:20:30,138 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-09-13 10:20:30,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 10:20:30,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-09-13 10:20:30,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2024-09-13 10:20:30,140 INFO L87 Difference]: Start difference. First operand 81 states and 119 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14)
[2024-09-13 10:20:30,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 10:20:30,282 INFO L93 Difference]: Finished difference Result 92 states and 134 transitions.
[2024-09-13 10:20:30,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-09-13 10:20:30,282 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 67
[2024-09-13 10:20:30,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 10:20:30,283 INFO L225 Difference]: With dead ends: 92
[2024-09-13 10:20:30,283 INFO L226 Difference]: Without dead ends: 92
[2024-09-13 10:20:30,284 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132
[2024-09-13 10:20:30,284 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 9 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-13 10:20:30,285 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 95 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-13 10:20:30,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states.
[2024-09-13 10:20:30,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 68.
[2024-09-13 10:20:30,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 41 states have (on average 1.1951219512195121) internal successors, (49), 41 states have internal predecessors, (49), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25)
[2024-09-13 10:20:30,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions.
[2024-09-13 10:20:30,290 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 67
[2024-09-13 10:20:30,291 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 10:20:30,291 INFO L474 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions.
[2024-09-13 10:20:30,291 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14)
[2024-09-13 10:20:30,291 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions.
[2024-09-13 10:20:30,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73
[2024-09-13 10:20:30,292 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 10:20:30,292 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-13 10:20:30,308 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-09-13 10:20:30,496 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2024-09-13 10:20:30,497 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 8 more)] ===
[2024-09-13 10:20:30,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 10:20:30,497 INFO L85 PathProgramCache]: Analyzing trace with hash 538052032, now seen corresponding path program 1 times
[2024-09-13 10:20:30,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 10:20:30,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589885847]
[2024-09-13 10:20:30,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:20:30,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 10:20:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:30,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-13 10:20:30,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:30,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-13 10:20:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:30,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2024-09-13 10:20:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:30,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-13 10:20:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:30,817 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2024-09-13 10:20:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:30,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-09-13 10:20:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:30,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41
[2024-09-13 10:20:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:30,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2024-09-13 10:20:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:30,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55
[2024-09-13 10:20:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:30,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60
[2024-09-13 10:20:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:30,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66
[2024-09-13 10:20:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:30,875 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-09-13 10:20:30,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 10:20:30,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589885847]
[2024-09-13 10:20:30,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589885847] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-13 10:20:30,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213716994]
[2024-09-13 10:20:30,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:20:30,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 10:20:30,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-13 10:20:30,877 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-13 10:20:30,879 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-09-13 10:20:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:20:30,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-09-13 10:20:30,940 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-13 10:20:31,102 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked.
[2024-09-13 10:20:31,103 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-13 10:20:31,210 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked.
[2024-09-13 10:20:31,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213716994] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-13 10:20:31,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-13 10:20:31,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12
[2024-09-13 10:20:31,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904490430]
[2024-09-13 10:20:31,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-13 10:20:31,211 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-09-13 10:20:31,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 10:20:31,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-09-13 10:20:31,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156
[2024-09-13 10:20:31,212 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 13 states have internal predecessors, (40), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21)
[2024-09-13 10:20:31,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 10:20:31,401 INFO L93 Difference]: Finished difference Result 85 states and 125 transitions.
[2024-09-13 10:20:31,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-09-13 10:20:31,402 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 13 states have internal predecessors, (40), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 72
[2024-09-13 10:20:31,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 10:20:31,402 INFO L225 Difference]: With dead ends: 85
[2024-09-13 10:20:31,402 INFO L226 Difference]: Without dead ends: 0
[2024-09-13 10:20:31,403 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342
[2024-09-13 10:20:31,403 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 39 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-13 10:20:31,403 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 118 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-13 10:20:31,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-09-13 10:20:31,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-09-13 10:20:31,404 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)
[2024-09-13 10:20:31,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-09-13 10:20:31,404 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72
[2024-09-13 10:20:31,404 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 10:20:31,404 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-09-13 10:20:31,404 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 13 states have internal predecessors, (40), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21)
[2024-09-13 10:20:31,404 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-09-13 10:20:31,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-09-13 10:20:31,408 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 11 remaining)
[2024-09-13 10:20:31,409 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION (9 of 11 remaining)
[2024-09-13 10:20:31,409 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (8 of 11 remaining)
[2024-09-13 10:20:31,409 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONPRE_CONDITION (7 of 11 remaining)
[2024-09-13 10:20:31,409 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 11 remaining)
[2024-09-13 10:20:31,409 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONPRE_CONDITION (5 of 11 remaining)
[2024-09-13 10:20:31,409 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONPRE_CONDITION (4 of 11 remaining)
[2024-09-13 10:20:31,410 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONPRE_CONDITION (3 of 11 remaining)
[2024-09-13 10:20:31,410 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONPRE_CONDITION (2 of 11 remaining)
[2024-09-13 10:20:31,410 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining)
[2024-09-13 10:20:31,410 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION (0 of 11 remaining)
[2024-09-13 10:20:31,427 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-09-13 10:20:31,614 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 10:20:31,617 INFO L408 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-13 10:20:31,619 INFO L165 ceAbstractionStarter]: Computing trace abstraction results
[2024-09-13 10:20:31,620 INFO L469 ceAbstractionStarter]: Automizer considered 2 witness invariants
[2024-09-13 10:20:31,620 INFO L470 ceAbstractionStarter]: WitnessConsidered=2
[2024-09-13 10:20:31,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.09 10:20:31 BoogieIcfgContainer
[2024-09-13 10:20:31,621 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-09-13 10:20:31,621 INFO L158 Benchmark]: Toolchain (without parser) took 9324.87ms. Allocated memory was 167.8MB in the beginning and 237.0MB in the end (delta: 69.2MB). Free memory was 96.7MB in the beginning and 192.5MB in the end (delta: -95.8MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-13 10:20:31,622 INFO L158 Benchmark]: Witness Parser took 0.56ms. Allocated memory is still 167.8MB. Free memory is still 124.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-13 10:20:31,622 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 167.8MB. Free memory is still 140.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-13 10:20:31,622 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.31ms. Allocated memory is still 167.8MB. Free memory was 96.6MB in the beginning and 137.3MB in the end (delta: -40.7MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB.
[2024-09-13 10:20:31,622 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.60ms. Allocated memory is still 167.8MB. Free memory was 137.3MB in the beginning and 136.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-13 10:20:31,622 INFO L158 Benchmark]: Boogie Preprocessor took 49.60ms. Allocated memory is still 167.8MB. Free memory was 136.1MB in the beginning and 134.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-13 10:20:31,623 INFO L158 Benchmark]: RCFGBuilder took 357.06ms. Allocated memory is still 167.8MB. Free memory was 134.4MB in the beginning and 118.4MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-09-13 10:20:31,623 INFO L158 Benchmark]: TraceAbstraction took 8468.37ms. Allocated memory was 167.8MB in the beginning and 237.0MB in the end (delta: 69.2MB). Free memory was 118.4MB in the beginning and 192.5MB in the end (delta: -74.0MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-13 10:20:31,624 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 0.56ms. Allocated memory is still 167.8MB. Free memory is still 124.4MB. There was no memory consumed. Max. memory is 16.1GB.
* CDTParser took 0.16ms. Allocated memory is still 167.8MB. Free memory is still 140.8MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 408.31ms. Allocated memory is still 167.8MB. Free memory was 96.6MB in the beginning and 137.3MB in the end (delta: -40.7MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 33.60ms. Allocated memory is still 167.8MB. Free memory was 137.3MB in the beginning and 136.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 49.60ms. Allocated memory is still 167.8MB. Free memory was 136.1MB in the beginning and 134.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 357.06ms. Allocated memory is still 167.8MB. Free memory was 134.4MB in the beginning and 118.4MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 8468.37ms. Allocated memory was 167.8MB in the beginning and 237.0MB in the end (delta: 69.2MB). Free memory was 118.4MB in the beginning and 192.5MB in the end (delta: -74.0MB). 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: 34]: invariant of correctness witness holds
For all program executions holds that invariant of correctness witness holds at this location
- PositiveResult [Line: 14]: procedure precondition always holds
For all program executions holds that procedure precondition always holds at this location
- PositiveResult [Line: 14]: procedure precondition always holds
For all program executions holds that procedure precondition always holds at this location
- PositiveResult [Line: 14]: procedure precondition always holds
For all program executions holds that procedure precondition always holds at this location
- PositiveResult [Line: 44]: invariant of correctness witness holds
For all program executions holds that invariant of correctness witness holds at this location
- PositiveResult [Line: 14]: procedure precondition always holds
For all program executions holds that procedure precondition always holds at this location
- PositiveResult [Line: 14]: procedure precondition always holds
For all program executions holds that procedure precondition always holds at this location
- PositiveResult [Line: 14]: procedure precondition always holds
For all program executions holds that procedure precondition always holds at this location
- PositiveResult [Line: 14]: procedure precondition always holds
For all program executions holds that procedure precondition always holds at this location
- PositiveResult [Line: 17]: 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: 14]: procedure postcondition always holds
For all program executions holds that procedure postcondition always holds at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 35 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 8.4s, OverallIterations: 12, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 182 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 143 mSDsluCounter, 976 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 573 mSDsCounter, 154 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 722 IncrementalHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 154 mSolverCounterUnsat, 403 mSDtfsCounter, 722 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 726 GetRequests, 664 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=9, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 75 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 762 NumberOfCodeBlocks, 729 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 893 ConstructedInterpolants, 0 QuantifiedInterpolants, 5343 SizeOfPredicates, 7 NumberOfNonLiveVariables, 995 ConjunctsInSsa, 107 ConjunctsInUnsatCore, 22 InterpolantComputations, 7 PerfectInterpolantSequences, 2013/2105 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
11 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-09-13 10:20:31,641 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...