This is Ultimate 0.2.4-tmp.dk.referee-eval-04d6fb3-m
[2024-09-15 20:23:20,971 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-09-15 20:23:21,030 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-09-15 20:23:21,034 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-09-15 20:23:21,035 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-15 20:23:21,060 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-15 20:23:21,061 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-15 20:23:21,061 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-15 20:23:21,061 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-15 20:23:21,061 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-09-15 20:23:21,062 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-15 20:23:21,062 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-15 20:23:21,062 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-15 20:23:21,062 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-09-15 20:23:21,063 INFO L153 SettingsManager]: * Use SBE=true
[2024-09-15 20:23:21,063 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-15 20:23:21,065 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-09-15 20:23:21,065 INFO L153 SettingsManager]: * sizeof long=4
[2024-09-15 20:23:21,066 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-09-15 20:23:21,066 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-09-15 20:23:21,066 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-09-15 20:23:21,067 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-09-15 20:23:21,069 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-15 20:23:21,069 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-09-15 20:23:21,069 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-09-15 20:23:21,070 INFO L153 SettingsManager]: * sizeof long double=12
[2024-09-15 20:23:21,070 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-09-15 20:23:21,070 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-09-15 20:23:21,070 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-15 20:23:21,070 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-09-15 20:23:21,070 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-09-15 20:23:21,071 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-09-15 20:23:21,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-15 20:23:21,071 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-15 20:23:21,071 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-09-15 20:23:21,071 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-15 20:23:21,071 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-09-15 20:23:21,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-09-15 20:23:21,072 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-15 20:23:21,072 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-15 20:23:21,072 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-09-15 20:23:21,072 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-15 20:23:21,073 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/automizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None
[2024-09-15 20:23:21,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-15 20:23:21,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-15 20:23:21,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-15 20:23:21,373 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-09-15 20:23:21,374 INFO L274 PluginConnector]: CDTParser initialized
[2024-09-15 20:23:21,375 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound1.c
[2024-09-15 20:23:22,695 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-09-15 20:23:22,830 INFO L384 CDTParser]: Found 1 translation units.
[2024-09-15 20:23:22,830 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound1.c
[2024-09-15 20:23:22,839 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/bd35e9886/fcf867d669db4aaebb9883011775e832/FLAG0f492a940
[2024-09-15 20:23:22,853 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/bd35e9886/fcf867d669db4aaebb9883011775e832
[2024-09-15 20:23:22,855 INFO L270 PluginConnector]: Initializing Witness Parser...
[2024-09-15 20:23:22,856 INFO L274 PluginConnector]: Witness Parser initialized
[2024-09-15 20:23:22,857 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/ps2-ll_unwindbound1.yml/witness-2.1.yml
[2024-09-15 20:23:22,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-15 20:23:22,904 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements.
[2024-09-15 20:23:22,906 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-15 20:23:22,906 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-15 20:23:22,910 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-15 20:23:22,911 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:23:22" (1/2) ...
[2024-09-15 20:23:22,914 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62f5d54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:23:22, skipping insertion in model container
[2024-09-15 20:23:22,914 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:23:22" (1/2) ...
[2024-09-15 20:23:22,915 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@12cb4c4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:23:22, skipping insertion in model container
[2024-09-15 20:23:22,915 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:23:22" (2/2) ...
[2024-09-15 20:23:22,915 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62f5d54 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:23:22, skipping insertion in model container
[2024-09-15 20:23:22,915 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:23:22" (2/2) ...
[2024-09-15 20:23:22,925 INFO L93 nessWitnessExtractor]: Found the following entries in the witness:
[2024-09-15 20:23:22,925 INFO L1541 ArrayList]: Loop invariant at [L27-L36] ((((__int128) x * 2) == (y + ((__int128) y * y))) && (\old(counter) == 0))
[2024-09-15 20:23:22,925 INFO L1541 ArrayList]: Function contract at [L9]: requires (1 <= \old(cond)), ensures (1 <= \old(cond))
[2024-09-15 20:23:22,926 INFO L1541 ArrayList]: Function contract at [L18]: requires (counter == 0), ensures (\old(counter) == 0)
[2024-09-15 20:23:22,943 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-09-15 20:23:23,095 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound1.c[454,467]
[2024-09-15 20:23:23,110 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-15 20:23:23,118 INFO L200 MainTranslator]: Completed pre-run
Start Parsing Global
Start Parsing Global
[2024-09-15 20:23:23,148 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound1.c[454,467]
Start Parsing Global
Start Parsing Global
Start Parsing Local
[2024-09-15 20:23:23,155 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-15 20:23:23,168 INFO L204 MainTranslator]: Completed translation
[2024-09-15 20:23:23,168 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:23:23 WrapperNode
[2024-09-15 20:23:23,168 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-15 20:23:23,169 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-09-15 20:23:23,170 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-09-15 20:23:23,170 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-09-15 20:23:23,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:23:23" (1/1) ...
[2024-09-15 20:23:23,180 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:23:23" (1/1) ...
[2024-09-15 20:23:23,196 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 39
[2024-09-15 20:23:23,197 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-09-15 20:23:23,197 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-15 20:23:23,197 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-15 20:23:23,198 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-09-15 20:23:23,205 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:23:23" (1/1) ...
[2024-09-15 20:23:23,206 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:23:23" (1/1) ...
[2024-09-15 20:23:23,207 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:23:23" (1/1) ...
[2024-09-15 20:23:23,219 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
[2024-09-15 20:23:23,223 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:23:23" (1/1) ...
[2024-09-15 20:23:23,223 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:23:23" (1/1) ...
[2024-09-15 20:23:23,225 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:23:23" (1/1) ...
[2024-09-15 20:23:23,227 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:23:23" (1/1) ...
[2024-09-15 20:23:23,232 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:23:23" (1/1) ...
[2024-09-15 20:23:23,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:23:23" (1/1) ...
[2024-09-15 20:23:23,233 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-15 20:23:23,234 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-15 20:23:23,234 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-09-15 20:23:23,234 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-09-15 20:23:23,237 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:23:23" (1/1) ...
[2024-09-15 20:23:23,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-15 20:23:23,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-15 20:23:23,262 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-09-15 20:23:23,270 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-09-15 20:23:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-15 20:23:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2024-09-15 20:23:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-15 20:23:23,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-15 20:23:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-09-15 20:23:23,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-09-15 20:23:23,362 INFO L242 CfgBuilder]: Building ICFG
[2024-09-15 20:23:23,364 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-15 20:23:23,465 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2024-09-15 20:23:23,481 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live.
[2024-09-15 20:23:23,481 INFO L291 CfgBuilder]: Performing block encoding
[2024-09-15 20:23:23,496 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-15 20:23:23,497 INFO L318 CfgBuilder]: Removed 1 assume(true) statements.
[2024-09-15 20:23:23,497 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:23:23 BoogieIcfgContainer
[2024-09-15 20:23:23,497 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-15 20:23:23,498 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-09-15 20:23:23,499 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-09-15 20:23:23,501 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-09-15 20:23:23,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 08:23:22" (1/4) ...
[2024-09-15 20:23:23,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f183ad7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 08:23:23, skipping insertion in model container
[2024-09-15 20:23:23,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:23:22" (2/4) ...
[2024-09-15 20:23:23,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f183ad7 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 15.09 08:23:23, skipping insertion in model container
[2024-09-15 20:23:23,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:23:23" (3/4) ...
[2024-09-15 20:23:23,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f183ad7 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 15.09 08:23:23, skipping insertion in model container
[2024-09-15 20:23:23,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:23:23" (4/4) ...
[2024-09-15 20:23:23,503 INFO L112 eAbstractionObserver]: Analyzing ICFG ps2-ll_unwindbound1.c
[2024-09-15 20:23:23,515 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-09-15 20:23:23,516 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations.
[2024-09-15 20:23:23,568 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-09-15 20:23:23,577 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;@519b14a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-15 20:23:23,578 INFO L337 AbstractCegarLoop]: Starting to check reachability of 7 error locations.
[2024-09-15 20:23:23,582 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-09-15 20:23:23,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3
[2024-09-15 20:23:23,586 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-15 20:23:23,587 INFO L216 NwaCegarLoop]: trace histogram [1, 1]
[2024-09-15 20:23:23,587 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 4 more)] ===
[2024-09-15 20:23:23,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:23:23,600 INFO L85 PathProgramCache]: Analyzing trace with hash 2545, now seen corresponding path program 1 times
[2024-09-15 20:23:23,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:23:23,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536225268]
[2024-09-15 20:23:23,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:23:23,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:23:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:23:23,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-15 20:23:23,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:23:23,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536225268]
[2024-09-15 20:23:23,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536225268] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-15 20:23:23,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-15 20:23:23,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-09-15 20:23:23,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583212472]
[2024-09-15 20:23:23,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-15 20:23:23,750 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-15 20:23:23,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:23:23,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-15 20:23:23,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-15 20:23:23,774 INFO L87 Difference]: Start difference. First operand has 23 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-15 20:23:23,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:23:23,810 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions.
[2024-09-15 20:23:23,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-09-15 20:23:23,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2
[2024-09-15 20:23:23,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:23:23,820 INFO L225 Difference]: With dead ends: 25
[2024-09-15 20:23:23,820 INFO L226 Difference]: Without dead ends: 24
[2024-09-15 20:23:23,822 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-15 20:23:23,825 INFO L434 NwaCegarLoop]: 19 mSDtfsCounter, 3 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-15 20:23:23,827 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 38 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-15 20:23:23,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states.
[2024-09-15 20:23:23,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21.
[2024-09-15 20:23:23,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 17 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-09-15 20:23:23,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions.
[2024-09-15 20:23:23,854 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 2
[2024-09-15 20:23:23,854 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:23:23,854 INFO L474 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions.
[2024-09-15 20:23:23,855 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-15 20:23:23,855 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions.
[2024-09-15 20:23:23,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-09-15 20:23:23,855 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-15 20:23:23,856 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-09-15 20:23:23,856 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-09-15 20:23:23,856 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 4 more)] ===
[2024-09-15 20:23:23,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:23:23,858 INFO L85 PathProgramCache]: Analyzing trace with hash 78932, now seen corresponding path program 1 times
[2024-09-15 20:23:23,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:23:23,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931290483]
[2024-09-15 20:23:23,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:23:23,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:23:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-15 20:23:23,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1160638596]
[2024-09-15 20:23:23,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:23:23,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-15 20:23:23,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-15 20:23:23,879 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-15 20:23:23,881 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-09-15 20:23:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:23:23,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-09-15 20:23:23,937 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-15 20:23:23,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-15 20:23:23,991 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-15 20:23:23,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:23:23,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931290483]
[2024-09-15 20:23:23,992 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-15 20:23:23,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160638596]
[2024-09-15 20:23:23,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160638596] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-15 20:23:23,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-15 20:23:23,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-15 20:23:23,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815359744]
[2024-09-15 20:23:23,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-15 20:23:23,997 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-09-15 20:23:23,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:23:23,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-09-15 20:23:23,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-09-15 20:23:23,999 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-15 20:23:24,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:23:24,046 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions.
[2024-09-15 20:23:24,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-09-15 20:23:24,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3
[2024-09-15 20:23:24,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:23:24,047 INFO L225 Difference]: With dead ends: 28
[2024-09-15 20:23:24,047 INFO L226 Difference]: Without dead ends: 24
[2024-09-15 20:23:24,047 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-09-15 20:23:24,049 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 22 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-15 20:23:24,049 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 29 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-15 20:23:24,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states.
[2024-09-15 20:23:24,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24.
[2024-09-15 20:23:24,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.4375) internal successors, (23), 20 states have internal predecessors, (23), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-09-15 20:23:24,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions.
[2024-09-15 20:23:24,056 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 3
[2024-09-15 20:23:24,056 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:23:24,057 INFO L474 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions.
[2024-09-15 20:23:24,057 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-15 20:23:24,057 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions.
[2024-09-15 20:23:24,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-09-15 20:23:24,058 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-15 20:23:24,058 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-15 20:23:24,074 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-09-15 20:23:24,262 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-15 20:23:24,263 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 4 more)] ===
[2024-09-15 20:23:24,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:23:24,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1552363358, now seen corresponding path program 1 times
[2024-09-15 20:23:24,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:23:24,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194539929]
[2024-09-15 20:23:24,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:23:24,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:23:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:23:24,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-15 20:23:24,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:23:24,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194539929]
[2024-09-15 20:23:24,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194539929] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-15 20:23:24,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-15 20:23:24,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-15 20:23:24,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489931616]
[2024-09-15 20:23:24,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-15 20:23:24,366 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-15 20:23:24,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:23:24,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-15 20:23:24,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-15 20:23:24,367 INFO L87 Difference]: Start difference. First operand 24 states and 29 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)
[2024-09-15 20:23:24,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:23:24,374 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions.
[2024-09-15 20:23:24,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-09-15 20:23:24,375 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
[2024-09-15 20:23:24,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:23:24,375 INFO L225 Difference]: With dead ends: 22
[2024-09-15 20:23:24,375 INFO L226 Difference]: Without dead ends: 22
[2024-09-15 20:23:24,376 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-15 20:23:24,376 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 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
[2024-09-15 20:23:24,377 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-15 20:23:24,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2024-09-15 20:23:24,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22.
[2024-09-15 20:23:24,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.4) internal successors, (21), 18 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-09-15 20:23:24,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions.
[2024-09-15 20:23:24,380 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 9
[2024-09-15 20:23:24,380 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:23:24,380 INFO L474 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions.
[2024-09-15 20:23:24,380 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)
[2024-09-15 20:23:24,381 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions.
[2024-09-15 20:23:24,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-09-15 20:23:24,381 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-15 20:23:24,381 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-15 20:23:24,381 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-09-15 20:23:24,382 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 4 more)] ===
[2024-09-15 20:23:24,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:23:24,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1552363197, now seen corresponding path program 1 times
[2024-09-15 20:23:24,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:23:24,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301788221]
[2024-09-15 20:23:24,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:23:24,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:23:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:23:24,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-15 20:23:24,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:23:24,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301788221]
[2024-09-15 20:23:24,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301788221] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-15 20:23:24,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-15 20:23:24,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-15 20:23:24,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514560320]
[2024-09-15 20:23:24,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-15 20:23:24,413 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-15 20:23:24,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:23:24,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-15 20:23:24,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-15 20:23:24,422 INFO L87 Difference]: Start difference. First operand 22 states and 27 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)
[2024-09-15 20:23:24,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:23:24,437 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions.
[2024-09-15 20:23:24,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-09-15 20:23:24,442 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
[2024-09-15 20:23:24,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:23:24,443 INFO L225 Difference]: With dead ends: 21
[2024-09-15 20:23:24,443 INFO L226 Difference]: Without dead ends: 20
[2024-09-15 20:23:24,444 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-15 20:23:24,444 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-15 20:23:24,445 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 23 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-15 20:23:24,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states.
[2024-09-15 20:23:24,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20.
[2024-09-15 20:23:24,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-09-15 20:23:24,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions.
[2024-09-15 20:23:24,453 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 9
[2024-09-15 20:23:24,454 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:23:24,454 INFO L474 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions.
[2024-09-15 20:23:24,454 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)
[2024-09-15 20:23:24,454 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions.
[2024-09-15 20:23:24,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-09-15 20:23:24,454 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-15 20:23:24,455 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-15 20:23:24,455 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-09-15 20:23:24,455 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 4 more)] ===
[2024-09-15 20:23:24,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:23:24,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1755858557, now seen corresponding path program 1 times
[2024-09-15 20:23:24,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:23:24,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821920741]
[2024-09-15 20:23:24,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:23:24,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:23:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-15 20:23:24,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1323169267]
[2024-09-15 20:23:24,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:23:24,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-15 20:23:24,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-15 20:23:24,475 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-15 20:23:24,477 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-09-15 20:23:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:23:24,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-09-15 20:23:24,524 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-15 20:23:24,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-15 20:23:24,603 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-15 20:23:24,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-15 20:23:24,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:23:24,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821920741]
[2024-09-15 20:23:24,672 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-15 20:23:24,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323169267]
[2024-09-15 20:23:24,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323169267] provided 1 perfect and 1 imperfect interpolant sequences
[2024-09-15 20:23:24,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-09-15 20:23:24,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6
[2024-09-15 20:23:24,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669678555]
[2024-09-15 20:23:24,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-15 20:23:24,673 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-09-15 20:23:24,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:23:24,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-09-15 20:23:24,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-09-15 20:23:24,674 INFO L87 Difference]: Start difference. First operand 20 states and 22 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-09-15 20:23:24,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:23:24,692 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions.
[2024-09-15 20:23:24,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-09-15 20:23:24,693 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12
[2024-09-15 20:23:24,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:23:24,697 INFO L225 Difference]: With dead ends: 17
[2024-09-15 20:23:24,698 INFO L226 Difference]: Without dead ends: 0
[2024-09-15 20:23:24,698 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-09-15 20:23:24,699 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-15 20:23:24,699 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 12 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-15 20:23:24,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-09-15 20:23:24,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-09-15 20:23:24,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-15 20:23:24,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-09-15 20:23:24,700 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12
[2024-09-15 20:23:24,700 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:23:24,700 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-09-15 20:23:24,700 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-09-15 20:23:24,700 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-09-15 20:23:24,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-09-15 20:23:24,702 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION (6 of 7 remaining)
[2024-09-15 20:23:24,703 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 7 remaining)
[2024-09-15 20:23:24,703 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (4 of 7 remaining)
[2024-09-15 20:23:24,703 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONPRE_CONDITION (3 of 7 remaining)
[2024-09-15 20:23:24,704 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONPOST_CONDITION (2 of 7 remaining)
[2024-09-15 20:23:24,704 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining)
[2024-09-15 20:23:24,704 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION (0 of 7 remaining)
[2024-09-15 20:23:24,719 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-09-15 20:23:24,908 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-15 20:23:24,912 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2024-09-15 20:23:24,914 INFO L165 ceAbstractionStarter]: Computing trace abstraction results
[2024-09-15 20:23:24,915 INFO L469 ceAbstractionStarter]: Automizer considered 1 witness invariants
[2024-09-15 20:23:24,915 INFO L470 ceAbstractionStarter]: WitnessConsidered=1
[2024-09-15 20:23:24,916 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 08:23:24 BoogieIcfgContainer
[2024-09-15 20:23:24,916 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-09-15 20:23:24,917 INFO L158 Benchmark]: Toolchain (without parser) took 2013.24ms. Allocated memory was 79.7MB in the beginning and 111.1MB in the end (delta: 31.5MB). Free memory was 41.7MB in the beginning and 64.5MB in the end (delta: -22.8MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB.
[2024-09-15 20:23:24,917 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 79.7MB. Free memory is still 56.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-15 20:23:24,917 INFO L158 Benchmark]: Witness Parser took 0.26ms. Allocated memory is still 79.7MB. Free memory was 43.8MB in the beginning and 43.5MB in the end (delta: 230.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-15 20:23:24,917 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.05ms. Allocated memory is still 79.7MB. Free memory was 41.5MB in the beginning and 53.9MB in the end (delta: -12.4MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB.
[2024-09-15 20:23:24,918 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.41ms. Allocated memory is still 79.7MB. Free memory was 53.9MB in the beginning and 52.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-15 20:23:24,918 INFO L158 Benchmark]: Boogie Preprocessor took 36.10ms. Allocated memory is still 79.7MB. Free memory was 52.4MB in the beginning and 50.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-15 20:23:24,918 INFO L158 Benchmark]: RCFGBuilder took 263.34ms. Allocated memory is still 79.7MB. Free memory was 50.6MB in the beginning and 39.3MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-09-15 20:23:24,918 INFO L158 Benchmark]: TraceAbstraction took 1417.82ms. Allocated memory was 79.7MB in the beginning and 111.1MB in the end (delta: 31.5MB). Free memory was 38.7MB in the beginning and 64.5MB in the end (delta: -25.8MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB.
[2024-09-15 20:23:24,920 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.15ms. Allocated memory is still 79.7MB. Free memory is still 56.7MB. There was no memory consumed. Max. memory is 16.1GB.
* Witness Parser took 0.26ms. Allocated memory is still 79.7MB. Free memory was 43.8MB in the beginning and 43.5MB in the end (delta: 230.9kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 263.05ms. Allocated memory is still 79.7MB. Free memory was 41.5MB in the beginning and 53.9MB in the end (delta: -12.4MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 27.41ms. Allocated memory is still 79.7MB. Free memory was 53.9MB in the beginning and 52.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 36.10ms. Allocated memory is still 79.7MB. Free memory was 52.4MB in the beginning and 50.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 263.34ms. Allocated memory is still 79.7MB. Free memory was 50.6MB in the beginning and 39.3MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 1417.82ms. Allocated memory was 79.7MB in the beginning and 111.1MB in the end (delta: 31.5MB). Free memory was 38.7MB in the beginning and 64.5MB in the end (delta: -25.8MB). Peak memory consumption was 4.8MB. 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: 18]: procedure precondition always holds
For all program executions holds that procedure precondition always holds at this location
- PositiveResult [Line: 27]: invariant of correctness witness holds
For all program executions holds that invariant of correctness witness holds at this location
- PositiveResult [Line: 9]: procedure precondition always holds
For all program executions holds that procedure precondition always holds at this location
- PositiveResult [Line: 9]: procedure precondition always holds
For all program executions holds that procedure precondition always holds at this location
- PositiveResult [Line: 18]: procedure postcondition always holds
For all program executions holds that procedure postcondition always holds at this location
- PositiveResult [Line: 12]: 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: 9]: 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, 23 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 132 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 73 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=2, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 180 SizeOfPredicates, 2 NumberOfNonLiveVariables, 98 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 1/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
7 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-09-15 20:23:24,947 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...