This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m
[2024-09-20 13:33:28,929 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-09-20 13:33:29,005 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-09-20 13:33:29,009 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-09-20 13:33:29,010 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-20 13:33:29,028 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-20 13:33:29,029 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-20 13:33:29,029 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-20 13:33:29,030 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-20 13:33:29,030 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-09-20 13:33:29,030 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-20 13:33:29,031 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-20 13:33:29,031 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-20 13:33:29,032 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-09-20 13:33:29,032 INFO L153 SettingsManager]: * Use SBE=true
[2024-09-20 13:33:29,033 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-20 13:33:29,033 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-09-20 13:33:29,034 INFO L153 SettingsManager]: * sizeof long=4
[2024-09-20 13:33:29,034 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-09-20 13:33:29,034 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-09-20 13:33:29,035 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-09-20 13:33:29,038 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-09-20 13:33:29,038 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-20 13:33:29,038 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-09-20 13:33:29,039 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-09-20 13:33:29,039 INFO L153 SettingsManager]: * sizeof long double=12
[2024-09-20 13:33:29,039 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-09-20 13:33:29,039 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-09-20 13:33:29,040 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-20 13:33:29,040 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-09-20 13:33:29,041 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-09-20 13:33:29,041 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-09-20 13:33:29,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-20 13:33:29,042 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-20 13:33:29,042 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-09-20 13:33:29,042 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-20 13:33:29,043 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-09-20 13:33:29,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-09-20 13:33:29,043 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-20 13:33:29,043 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-20 13:33:29,043 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-09-20 13:33:29,044 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-20 13:33:29,044 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/automizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None
[2024-09-20 13:33:29,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-20 13:33:29,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-20 13:33:29,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-20 13:33:29,312 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-09-20 13:33:29,313 INFO L274 PluginConnector]: CDTParser initialized
[2024-09-20 13:33:29,314 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c
[2024-09-20 13:33:30,747 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-09-20 13:33:30,918 INFO L384 CDTParser]: Found 1 translation units.
[2024-09-20 13:33:30,918 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c
[2024-09-20 13:33:30,924 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/519bb37c9/a0416c7788fe4f56bcb08d65d035ad66/FLAG415f9e7d8
[2024-09-20 13:33:30,937 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/519bb37c9/a0416c7788fe4f56bcb08d65d035ad66
[2024-09-20 13:33:30,940 INFO L270 PluginConnector]: Initializing Witness Parser...
[2024-09-20 13:33:30,941 INFO L274 PluginConnector]: Witness Parser initialized
[2024-09-20 13:33:30,942 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/cohendiv-ll_valuebound10.yml/witness-2.1.yml
[2024-09-20 13:33:30,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-20 13:33:30,989 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements.
[2024-09-20 13:33:30,990 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-20 13:33:30,990 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-20 13:33:30,995 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-20 13:33:30,996 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:33:30" (1/2) ...
[2024-09-20 13:33:30,997 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9a297d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:33:30, skipping insertion in model container
[2024-09-20 13:33:30,997 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:33:30" (1/2) ...
[2024-09-20 13:33:30,999 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2cfb239c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:33:30, skipping insertion in model container
[2024-09-20 13:33:30,999 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:33:30" (2/2) ...
[2024-09-20 13:33:30,999 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9a297d0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:33:30, skipping insertion in model container
[2024-09-20 13:33:30,999 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:33:30" (2/2) ...
[2024-09-20 13:33:31,008 INFO L93 nessWitnessExtractor]: Found the following entries in the witness:
[2024-09-20 13:33:31,011 INFO L1541 ArrayList]: Loop invariant at [L38-L62] ((((((__int128) q * y) + r) == x) && (((((__int128) q * y) + r) + ((__int128) a * y)) == ((__int128) b + x))) && (1 <= y))
[2024-09-20 13:33:31,011 INFO L1541 ArrayList]: Loop invariant at [L47-L59] (((((((__int128) q * y) + r) == x) && (1 <= r)) && (((((__int128) q * y) + r) + ((__int128) a * y)) == ((__int128) b + x))) && (1 <= y))
[2024-09-20 13:33:31,012 INFO L1541 ArrayList]: Function contract at [L14]: requires (\old(cond) != 0), ensures (\old(cond) != 0)
[2024-09-20 13:33:31,012 INFO L1541 ArrayList]: Function contract at [L11]: requires null, ensures (\old(cond) != 0)
[2024-09-20 13:33:31,032 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-09-20 13:33:31,163 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/cohendiv-ll_valuebound10.c[576,589]
[2024-09-20 13:33:31,179 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-20 13:33:31,188 INFO L200 MainTranslator]: Completed pre-run
Start Parsing Global
Start Parsing Global
Start Parsing Global
[2024-09-20 13:33:31,217 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/cohendiv-ll_valuebound10.c[576,589]
Start Parsing Local
Start Parsing Local
[2024-09-20 13:33:31,229 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-20 13:33:31,250 INFO L204 MainTranslator]: Completed translation
[2024-09-20 13:33:31,250 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:33:31 WrapperNode
[2024-09-20 13:33:31,251 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-20 13:33:31,251 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-09-20 13:33:31,252 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-09-20 13:33:31,252 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-09-20 13:33:31,257 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 20.09 01:33:31" (1/1) ...
[2024-09-20 13:33:31,263 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 20.09 01:33:31" (1/1) ...
[2024-09-20 13:33:31,289 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57
[2024-09-20 13:33:31,289 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-09-20 13:33:31,290 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-20 13:33:31,290 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-20 13:33:31,290 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-09-20 13:33:31,297 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 20.09 01:33:31" (1/1) ...
[2024-09-20 13:33:31,297 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 20.09 01:33:31" (1/1) ...
[2024-09-20 13:33:31,299 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 20.09 01:33:31" (1/1) ...
[2024-09-20 13:33:31,305 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure assume_abort_if_not is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification
[2024-09-20 13:33:31,305 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 20.09 01:33:31" (1/1) ...
[2024-09-20 13:33:31,305 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 20.09 01:33:31" (1/1) ...
[2024-09-20 13:33:31,308 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 20.09 01:33:31" (1/1) ...
[2024-09-20 13:33:31,312 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 20.09 01:33:31" (1/1) ...
[2024-09-20 13:33:31,313 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 20.09 01:33:31" (1/1) ...
[2024-09-20 13:33:31,314 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 20.09 01:33:31" (1/1) ...
[2024-09-20 13:33:31,315 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-20 13:33:31,316 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-20 13:33:31,316 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-09-20 13:33:31,317 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-09-20 13:33:31,318 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 20.09 01:33:31" (1/1) ...
[2024-09-20 13:33:31,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-20 13:33:31,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 13:33:31,349 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-09-20 13:33:31,355 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-09-20 13:33:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-20 13:33:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-09-20 13:33:31,402 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-09-20 13:33:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2024-09-20 13:33:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-20 13:33:31,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-20 13:33:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-09-20 13:33:31,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-09-20 13:33:31,500 INFO L242 CfgBuilder]: Building ICFG
[2024-09-20 13:33:31,505 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-20 13:33:31,728 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2024-09-20 13:33:31,758 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live.
[2024-09-20 13:33:31,758 INFO L291 CfgBuilder]: Performing block encoding
[2024-09-20 13:33:31,786 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-20 13:33:31,786 INFO L318 CfgBuilder]: Removed 2 assume(true) statements.
[2024-09-20 13:33:31,787 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:33:31 BoogieIcfgContainer
[2024-09-20 13:33:31,787 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-20 13:33:31,789 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-09-20 13:33:31,789 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-09-20 13:33:31,793 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-09-20 13:33:31,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:33:30" (1/4) ...
[2024-09-20 13:33:31,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55969adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:33:31, skipping insertion in model container
[2024-09-20 13:33:31,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:33:30" (2/4) ...
[2024-09-20 13:33:31,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55969adf and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.09 01:33:31, skipping insertion in model container
[2024-09-20 13:33:31,794 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 20.09 01:33:31" (3/4) ...
[2024-09-20 13:33:31,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55969adf and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.09 01:33:31, skipping insertion in model container
[2024-09-20 13:33:31,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:33:31" (4/4) ...
[2024-09-20 13:33:31,796 INFO L112 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound10.c
[2024-09-20 13:33:31,818 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-09-20 13:33:31,819 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations.
[2024-09-20 13:33:31,873 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-09-20 13:33:31,882 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;@26c1e243, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-20 13:33:31,882 INFO L337 AbstractCegarLoop]: Starting to check reachability of 12 error locations.
[2024-09-20 13:33:31,886 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 26 states have (on average 1.5) internal successors, (39), 31 states have internal predecessors, (39), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10)
[2024-09-20 13:33:31,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2024-09-20 13:33:31,895 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:33:31,896 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2024-09-20 13:33:31,896 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 9 more)] ===
[2024-09-20 13:33:31,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:33:31,901 INFO L85 PathProgramCache]: Analyzing trace with hash 131980187, now seen corresponding path program 1 times
[2024-09-20 13:33:31,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:33:31,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746060851]
[2024-09-20 13:33:31,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:33:31,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:33:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:32,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:33:32,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:33:32,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746060851]
[2024-09-20 13:33:32,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746060851] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:33:32,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 13:33:32,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-20 13:33:32,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331597656]
[2024-09-20 13:33:32,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:33:32,059 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-20 13:33:32,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:33:32,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-20 13:33:32,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-20 13:33:32,083 INFO L87 Difference]: Start difference. First operand has 44 states, 26 states have (on average 1.5) internal successors, (39), 31 states have internal predecessors, (39), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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)
[2024-09-20 13:33:32,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:33:32,105 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions.
[2024-09-20 13:33:32,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-09-20 13:33:32,108 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), 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 5
[2024-09-20 13:33:32,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:33:32,114 INFO L225 Difference]: With dead ends: 44
[2024-09-20 13:33:32,115 INFO L226 Difference]: Without dead ends: 42
[2024-09-20 13:33:32,129 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
[2024-09-20 13:33:32,133 INFO L434 NwaCegarLoop]: 50 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, 50 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
[2024-09-20 13:33:32,133 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-20 13:33:32,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2024-09-20 13:33:32,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42.
[2024-09-20 13:33:32,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 25 states have (on average 1.28) internal successors, (32), 30 states have internal predecessors, (32), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-09-20 13:33:32,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions.
[2024-09-20 13:33:32,198 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 5
[2024-09-20 13:33:32,199 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:33:32,199 INFO L474 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions.
[2024-09-20 13:33:32,200 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), 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)
[2024-09-20 13:33:32,200 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions.
[2024-09-20 13:33:32,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2024-09-20 13:33:32,202 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:33:32,202 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2024-09-20 13:33:32,202 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-09-20 13:33:32,203 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 9 more)] ===
[2024-09-20 13:33:32,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:33:32,206 INFO L85 PathProgramCache]: Analyzing trace with hash 131980249, now seen corresponding path program 1 times
[2024-09-20 13:33:32,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:33:32,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384727337]
[2024-09-20 13:33:32,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:33:32,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:33:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:32,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:33:32,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:33:32,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384727337]
[2024-09-20 13:33:32,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384727337] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:33:32,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 13:33:32,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-20 13:33:32,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101658748]
[2024-09-20 13:33:32,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:33:32,286 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-09-20 13:33:32,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:33:32,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-09-20 13:33:32,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-09-20 13:33:32,288 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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)
[2024-09-20 13:33:32,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:33:32,344 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions.
[2024-09-20 13:33:32,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-09-20 13:33:32,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 5
[2024-09-20 13:33:32,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:33:32,345 INFO L225 Difference]: With dead ends: 41
[2024-09-20 13:33:32,346 INFO L226 Difference]: Without dead ends: 41
[2024-09-20 13:33:32,346 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-09-20 13:33:32,347 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 1 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-20 13:33:32,348 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 121 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-20 13:33:32,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2024-09-20 13:33:32,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41.
[2024-09-20 13:33:32,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 25 states have (on average 1.24) internal successors, (31), 29 states have internal predecessors, (31), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-09-20 13:33:32,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions.
[2024-09-20 13:33:32,354 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 5
[2024-09-20 13:33:32,354 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:33:32,354 INFO L474 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions.
[2024-09-20 13:33:32,355 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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)
[2024-09-20 13:33:32,355 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions.
[2024-09-20 13:33:32,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-09-20 13:33:32,355 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:33:32,356 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:33:32,356 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-09-20 13:33:32,356 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 9 more)] ===
[2024-09-20 13:33:32,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:33:32,357 INFO L85 PathProgramCache]: Analyzing trace with hash -905257559, now seen corresponding path program 1 times
[2024-09-20 13:33:32,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:33:32,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365626019]
[2024-09-20 13:33:32,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:33:32,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:33:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-20 13:33:32,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1686024597]
[2024-09-20 13:33:32,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:33:32,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:33:32,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 13:33:32,392 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)
[2024-09-20 13:33:32,394 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-09-20 13:33:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:32,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-09-20 13:33:32,461 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-20 13:33:32,559 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-09-20 13:33:32,559 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-20 13:33:32,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:33:32,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365626019]
[2024-09-20 13:33:32,560 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-20 13:33:32,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686024597]
[2024-09-20 13:33:32,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686024597] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:33:32,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 13:33:32,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-20 13:33:32,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017533751]
[2024-09-20 13:33:32,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:33:32,562 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-20 13:33:32,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:33:32,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-20 13:33:32,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-09-20 13:33:32,563 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand has 5 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2024-09-20 13:33:32,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:33:32,687 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions.
[2024-09-20 13:33:32,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-09-20 13:33:32,687 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 19
[2024-09-20 13:33:32,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:33:32,689 INFO L225 Difference]: With dead ends: 47
[2024-09-20 13:33:32,691 INFO L226 Difference]: Without dead ends: 47
[2024-09-20 13:33:32,691 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-09-20 13:33:32,692 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 18 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-20 13:33:32,693 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 81 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-20 13:33:32,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2024-09-20 13:33:32,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47.
[2024-09-20 13:33:32,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 28 states have (on average 1.25) internal successors, (35), 33 states have internal predecessors, (35), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-09-20 13:33:32,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 59 transitions.
[2024-09-20 13:33:32,702 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 59 transitions. Word has length 19
[2024-09-20 13:33:32,703 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:33:32,704 INFO L474 AbstractCegarLoop]: Abstraction has 47 states and 59 transitions.
[2024-09-20 13:33:32,704 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2024-09-20 13:33:32,704 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 59 transitions.
[2024-09-20 13:33:32,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-09-20 13:33:32,705 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:33:32,705 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:33:32,723 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-09-20 13:33:32,909 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:33:32,910 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 9 more)] ===
[2024-09-20 13:33:32,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:33:32,911 INFO L85 PathProgramCache]: Analyzing trace with hash 779692476, now seen corresponding path program 1 times
[2024-09-20 13:33:32,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:33:32,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656017413]
[2024-09-20 13:33:32,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:33:32,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:33:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:32,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2024-09-20 13:33:32,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:32,974 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-09-20 13:33:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:32,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2024-09-20 13:33:32,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:32,985 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-09-20 13:33:32,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:33:32,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656017413]
[2024-09-20 13:33:32,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656017413] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:33:32,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 13:33:32,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-20 13:33:32,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667127708]
[2024-09-20 13:33:32,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:33:32,988 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-20 13:33:32,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:33:32,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-20 13:33:32,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-20 13:33:32,989 INFO L87 Difference]: Start difference. First operand 47 states and 59 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-09-20 13:33:33,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:33:33,032 INFO L93 Difference]: Finished difference Result 46 states and 58 transitions.
[2024-09-20 13:33:33,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-09-20 13:33:33,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24
[2024-09-20 13:33:33,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:33:33,035 INFO L225 Difference]: With dead ends: 46
[2024-09-20 13:33:33,035 INFO L226 Difference]: Without dead ends: 46
[2024-09-20 13:33:33,035 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-20 13:33:33,038 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 3 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 70 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
[2024-09-20 13:33:33,038 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 70 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-20 13:33:33,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states.
[2024-09-20 13:33:33,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46.
[2024-09-20 13:33:33,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 32 states have internal predecessors, (34), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-09-20 13:33:33,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions.
[2024-09-20 13:33:33,050 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 24
[2024-09-20 13:33:33,050 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:33:33,051 INFO L474 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions.
[2024-09-20 13:33:33,051 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-09-20 13:33:33,051 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions.
[2024-09-20 13:33:33,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-09-20 13:33:33,052 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:33:33,052 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:33:33,052 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-09-20 13:33:33,052 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 9 more)] ===
[2024-09-20 13:33:33,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:33:33,053 INFO L85 PathProgramCache]: Analyzing trace with hash 779692315, now seen corresponding path program 1 times
[2024-09-20 13:33:33,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:33:33,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481616023]
[2024-09-20 13:33:33,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:33:33,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:33:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:33,131 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2024-09-20 13:33:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:33,136 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-09-20 13:33:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:33,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2024-09-20 13:33:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:33,144 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-09-20 13:33:33,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:33:33,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481616023]
[2024-09-20 13:33:33,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481616023] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:33:33,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 13:33:33,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-20 13:33:33,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020487134]
[2024-09-20 13:33:33,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:33:33,146 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-20 13:33:33,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:33:33,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-20 13:33:33,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-20 13:33:33,147 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-09-20 13:33:33,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:33:33,156 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions.
[2024-09-20 13:33:33,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-09-20 13:33:33,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24
[2024-09-20 13:33:33,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:33:33,158 INFO L225 Difference]: With dead ends: 44
[2024-09-20 13:33:33,158 INFO L226 Difference]: Without dead ends: 43
[2024-09-20 13:33:33,158 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-20 13:33:33,159 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 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
[2024-09-20 13:33:33,160 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-20 13:33:33,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2024-09-20 13:33:33,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43.
[2024-09-20 13:33:33,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 29 states have internal predecessors, (31), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-09-20 13:33:33,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions.
[2024-09-20 13:33:33,165 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 24
[2024-09-20 13:33:33,165 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:33:33,165 INFO L474 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions.
[2024-09-20 13:33:33,165 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-09-20 13:33:33,166 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions.
[2024-09-20 13:33:33,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2024-09-20 13:33:33,166 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:33:33,166 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:33:33,166 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-09-20 13:33:33,167 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 9 more)] ===
[2024-09-20 13:33:33,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:33:33,167 INFO L85 PathProgramCache]: Analyzing trace with hash 240470158, now seen corresponding path program 1 times
[2024-09-20 13:33:33,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:33:33,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816148583]
[2024-09-20 13:33:33,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:33:33,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:33:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-20 13:33:33,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [676326154]
[2024-09-20 13:33:33,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:33:33,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:33:33,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 13:33:33,206 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)
[2024-09-20 13:33:33,208 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-09-20 13:33:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:33,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-09-20 13:33:33,270 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-20 13:33:33,396 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2024-09-20 13:33:33,396 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-20 13:33:33,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:33:33,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816148583]
[2024-09-20 13:33:33,397 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-20 13:33:33,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676326154]
[2024-09-20 13:33:33,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676326154] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:33:33,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 13:33:33,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-20 13:33:33,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446437355]
[2024-09-20 13:33:33,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:33:33,398 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-20 13:33:33,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:33:33,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-20 13:33:33,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-09-20 13:33:33,402 INFO L87 Difference]: Start difference. First operand 43 states and 53 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-09-20 13:33:33,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:33:33,493 INFO L93 Difference]: Finished difference Result 62 states and 86 transitions.
[2024-09-20 13:33:33,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-09-20 13:33:33,494 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 32
[2024-09-20 13:33:33,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:33:33,495 INFO L225 Difference]: With dead ends: 62
[2024-09-20 13:33:33,495 INFO L226 Difference]: Without dead ends: 62
[2024-09-20 13:33:33,495 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-09-20 13:33:33,496 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 21 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-20 13:33:33,498 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 64 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-20 13:33:33,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2024-09-20 13:33:33,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 56.
[2024-09-20 13:33:33,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 36 states have internal predecessors, (42), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18)
[2024-09-20 13:33:33,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions.
[2024-09-20 13:33:33,515 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 32
[2024-09-20 13:33:33,515 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:33:33,515 INFO L474 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions.
[2024-09-20 13:33:33,515 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-09-20 13:33:33,516 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions.
[2024-09-20 13:33:33,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2024-09-20 13:33:33,517 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:33:33,517 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:33:33,536 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-09-20 13:33:33,717 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
[2024-09-20 13:33:33,718 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 9 more)] ===
[2024-09-20 13:33:33,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:33:33,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1606232253, now seen corresponding path program 1 times
[2024-09-20 13:33:33,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:33:33,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440543549]
[2024-09-20 13:33:33,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:33:33,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:33:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:33,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2024-09-20 13:33:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:33,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-09-20 13:33:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:33,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2024-09-20 13:33:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:33,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2024-09-20 13:33:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:33,949 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2024-09-20 13:33:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:33,955 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-09-20 13:33:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:33,961 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-09-20 13:33:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:33,967 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-09-20 13:33:33,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:33,972 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked.
[2024-09-20 13:33:33,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:33:33,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440543549]
[2024-09-20 13:33:33,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440543549] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:33:33,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 13:33:33,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-20 13:33:33,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226652715]
[2024-09-20 13:33:33,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:33:33,973 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-20 13:33:33,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:33:33,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-20 13:33:33,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-09-20 13:33:33,975 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8)
[2024-09-20 13:33:34,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:33:34,079 INFO L93 Difference]: Finished difference Result 55 states and 76 transitions.
[2024-09-20 13:33:34,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-09-20 13:33:34,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 50
[2024-09-20 13:33:34,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:33:34,082 INFO L225 Difference]: With dead ends: 55
[2024-09-20 13:33:34,082 INFO L226 Difference]: Without dead ends: 55
[2024-09-20 13:33:34,082 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-09-20 13:33:34,082 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 14 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 80 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
[2024-09-20 13:33:34,083 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 80 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-20 13:33:34,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states.
[2024-09-20 13:33:34,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55.
[2024-09-20 13:33:34,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 35 states have internal predecessors, (40), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18)
[2024-09-20 13:33:34,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 76 transitions.
[2024-09-20 13:33:34,097 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 76 transitions. Word has length 50
[2024-09-20 13:33:34,097 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:33:34,097 INFO L474 AbstractCegarLoop]: Abstraction has 55 states and 76 transitions.
[2024-09-20 13:33:34,098 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8)
[2024-09-20 13:33:34,098 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 76 transitions.
[2024-09-20 13:33:34,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2024-09-20 13:33:34,099 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:33:34,099 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:33:34,099 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-09-20 13:33:34,099 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 9 more)] ===
[2024-09-20 13:33:34,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:33:34,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1746405951, now seen corresponding path program 1 times
[2024-09-20 13:33:34,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:33:34,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565203479]
[2024-09-20 13:33:34,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:33:34,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:33:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-20 13:33:34,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [182728637]
[2024-09-20 13:33:34,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:33:34,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:33:34,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 13:33:34,121 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)
[2024-09-20 13:33:34,122 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-09-20 13:33:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:34,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-09-20 13:33:34,189 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-20 13:33:34,489 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked.
[2024-09-20 13:33:34,490 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-20 13:33:34,716 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked.
[2024-09-20 13:33:34,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:33:34,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565203479]
[2024-09-20 13:33:34,716 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-20 13:33:34,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182728637]
[2024-09-20 13:33:34,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182728637] provided 1 perfect and 1 imperfect interpolant sequences
[2024-09-20 13:33:34,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-09-20 13:33:34,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8
[2024-09-20 13:33:34,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452334398]
[2024-09-20 13:33:34,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:33:34,717 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-20 13:33:34,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:33:34,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-20 13:33:34,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2024-09-20 13:33:34,718 INFO L87 Difference]: Start difference. First operand 55 states and 76 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8)
[2024-09-20 13:33:34,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:33:34,785 INFO L93 Difference]: Finished difference Result 49 states and 69 transitions.
[2024-09-20 13:33:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-09-20 13:33:34,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 51
[2024-09-20 13:33:34,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:33:34,788 INFO L225 Difference]: With dead ends: 49
[2024-09-20 13:33:34,788 INFO L226 Difference]: Without dead ends: 48
[2024-09-20 13:33:34,788 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 91 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90
[2024-09-20 13:33:34,789 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 3 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-20 13:33:34,789 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 79 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-20 13:33:34,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states.
[2024-09-20 13:33:34,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 40.
[2024-09-20 13:33:34,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 24 states have internal predecessors, (25), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14)
[2024-09-20 13:33:34,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 53 transitions.
[2024-09-20 13:33:34,796 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 53 transitions. Word has length 51
[2024-09-20 13:33:34,796 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:33:34,796 INFO L474 AbstractCegarLoop]: Abstraction has 40 states and 53 transitions.
[2024-09-20 13:33:34,796 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8)
[2024-09-20 13:33:34,797 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 53 transitions.
[2024-09-20 13:33:34,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-09-20 13:33:34,798 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:33:34,799 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:33:34,816 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-09-20 13:33:35,001 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
[2024-09-20 13:33:35,002 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 9 more)] ===
[2024-09-20 13:33:35,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:33:35,002 INFO L85 PathProgramCache]: Analyzing trace with hash -794580679, now seen corresponding path program 1 times
[2024-09-20 13:33:35,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:33:35,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299320767]
[2024-09-20 13:33:35,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:33:35,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:33:35,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-20 13:33:35,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [86067966]
[2024-09-20 13:33:35,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:33:35,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:33:35,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 13:33:35,025 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)
[2024-09-20 13:33:35,027 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-09-20 13:33:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:35,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-09-20 13:33:35,085 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-20 13:33:35,314 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked.
[2024-09-20 13:33:35,314 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-20 13:33:35,579 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked.
[2024-09-20 13:33:35,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:33:35,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299320767]
[2024-09-20 13:33:35,579 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-20 13:33:35,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86067966]
[2024-09-20 13:33:35,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86067966] provided 1 perfect and 1 imperfect interpolant sequences
[2024-09-20 13:33:35,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-09-20 13:33:35,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9
[2024-09-20 13:33:35,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700442095]
[2024-09-20 13:33:35,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:33:35,581 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-20 13:33:35,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:33:35,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-20 13:33:35,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90
[2024-09-20 13:33:35,583 INFO L87 Difference]: Start difference. First operand 40 states and 53 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9)
[2024-09-20 13:33:35,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:33:35,633 INFO L93 Difference]: Finished difference Result 40 states and 53 transitions.
[2024-09-20 13:33:35,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-09-20 13:33:35,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 56
[2024-09-20 13:33:35,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:33:35,636 INFO L225 Difference]: With dead ends: 40
[2024-09-20 13:33:35,636 INFO L226 Difference]: Without dead ends: 40
[2024-09-20 13:33:35,636 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90
[2024-09-20 13:33:35,637 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 4 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-20 13:33:35,638 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 46 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-20 13:33:35,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2024-09-20 13:33:35,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 35.
[2024-09-20 13:33:35,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-09-20 13:33:35,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions.
[2024-09-20 13:33:35,645 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 56
[2024-09-20 13:33:35,645 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:33:35,645 INFO L474 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions.
[2024-09-20 13:33:35,645 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9)
[2024-09-20 13:33:35,645 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions.
[2024-09-20 13:33:35,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-09-20 13:33:35,646 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:33:35,646 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:33:35,663 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-09-20 13:33:35,847 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
[2024-09-20 13:33:35,847 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 9 more)] ===
[2024-09-20 13:33:35,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:33:35,847 INFO L85 PathProgramCache]: Analyzing trace with hash -469516360, now seen corresponding path program 1 times
[2024-09-20 13:33:35,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:33:35,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358888575]
[2024-09-20 13:33:35,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:33:35,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:33:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:35,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2024-09-20 13:33:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:35,945 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-09-20 13:33:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:35,950 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2024-09-20 13:33:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:35,953 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2024-09-20 13:33:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:35,955 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2024-09-20 13:33:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:35,957 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-09-20 13:33:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:35,961 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-09-20 13:33:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:35,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-09-20 13:33:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:35,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52
[2024-09-20 13:33:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:35,971 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57
[2024-09-20 13:33:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:35,975 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked.
[2024-09-20 13:33:35,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:33:35,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358888575]
[2024-09-20 13:33:35,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358888575] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:33:35,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 13:33:35,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-09-20 13:33:35,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048978189]
[2024-09-20 13:33:35,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:33:35,976 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-20 13:33:35,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:33:35,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-20 13:33:35,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-09-20 13:33:35,978 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10)
[2024-09-20 13:33:36,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:33:36,092 INFO L93 Difference]: Finished difference Result 49 states and 65 transitions.
[2024-09-20 13:33:36,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-09-20 13:33:36,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 64
[2024-09-20 13:33:36,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:33:36,094 INFO L225 Difference]: With dead ends: 49
[2024-09-20 13:33:36,094 INFO L226 Difference]: Without dead ends: 43
[2024-09-20 13:33:36,094 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-09-20 13:33:36,094 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 5 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-20 13:33:36,095 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 108 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-20 13:33:36,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2024-09-20 13:33:36,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41.
[2024-09-20 13:33:36,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 24 states have internal predecessors, (26), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14)
[2024-09-20 13:33:36,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 54 transitions.
[2024-09-20 13:33:36,100 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 54 transitions. Word has length 64
[2024-09-20 13:33:36,102 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:33:36,102 INFO L474 AbstractCegarLoop]: Abstraction has 41 states and 54 transitions.
[2024-09-20 13:33:36,102 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10)
[2024-09-20 13:33:36,102 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 54 transitions.
[2024-09-20 13:33:36,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89
[2024-09-20 13:33:36,103 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:33:36,105 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1]
[2024-09-20 13:33:36,105 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-09-20 13:33:36,105 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 9 more)] ===
[2024-09-20 13:33:36,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:33:36,106 INFO L85 PathProgramCache]: Analyzing trace with hash -471026589, now seen corresponding path program 1 times
[2024-09-20 13:33:36,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:33:36,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854646269]
[2024-09-20 13:33:36,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:33:36,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:33:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-20 13:33:36,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1159605405]
[2024-09-20 13:33:36,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:33:36,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:33:36,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 13:33:36,142 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)
[2024-09-20 13:33:36,144 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-09-20 13:33:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:33:36,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-09-20 13:33:36,212 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-20 13:33:36,415 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked.
[2024-09-20 13:33:36,415 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-20 13:33:36,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:33:36,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854646269]
[2024-09-20 13:33:36,580 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-20 13:33:36,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159605405]
[2024-09-20 13:33:36,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159605405] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-20 13:33:36,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences.
[2024-09-20 13:33:36,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6
[2024-09-20 13:33:36,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001457978]
[2024-09-20 13:33:36,581 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton
[2024-09-20 13:33:36,581 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-09-20 13:33:36,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:33:36,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-09-20 13:33:36,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2024-09-20 13:33:36,582 INFO L87 Difference]: Start difference. First operand 41 states and 54 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 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)
[2024-09-20 13:33:36,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:33:36,724 INFO L93 Difference]: Finished difference Result 58 states and 81 transitions.
[2024-09-20 13:33:36,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-09-20 13:33:36,725 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 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 88
[2024-09-20 13:33:36,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:33:36,726 INFO L225 Difference]: With dead ends: 58
[2024-09-20 13:33:36,726 INFO L226 Difference]: Without dead ends: 0
[2024-09-20 13:33:36,726 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156
[2024-09-20 13:33:36,727 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 19 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-20 13:33:36,727 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 119 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-20 13:33:36,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-09-20 13:33:36,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-09-20 13:33:36,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:33:36,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-09-20 13:33:36,728 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88
[2024-09-20 13:33:36,728 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:33:36,728 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-09-20 13:33:36,728 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 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)
[2024-09-20 13:33:36,729 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-09-20 13:33:36,729 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-09-20 13:33:36,731 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 12 remaining)
[2024-09-20 13:33:36,731 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION (10 of 12 remaining)
[2024-09-20 13:33:36,732 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (9 of 12 remaining)
[2024-09-20 13:33:36,732 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 12 remaining)
[2024-09-20 13:33:36,732 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONPRE_CONDITION (7 of 12 remaining)
[2024-09-20 13:33:36,732 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONPRE_CONDITION (6 of 12 remaining)
[2024-09-20 13:33:36,732 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONPRE_CONDITION (5 of 12 remaining)
[2024-09-20 13:33:36,732 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONPRE_CONDITION (4 of 12 remaining)
[2024-09-20 13:33:36,733 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONPRE_CONDITION (3 of 12 remaining)
[2024-09-20 13:33:36,733 INFO L785 garLoopResultBuilder]: Registering result SAFE for location assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION (2 of 12 remaining)
[2024-09-20 13:33:36,733 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 12 remaining)
[2024-09-20 13:33:36,733 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION (0 of 12 remaining)
[2024-09-20 13:33:36,750 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-09-20 13:33:36,937 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2024-09-20 13:33:36,941 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:33:36,943 INFO L165 ceAbstractionStarter]: Computing trace abstraction results
[2024-09-20 13:33:36,944 INFO L469 ceAbstractionStarter]: Automizer considered 2 witness invariants
[2024-09-20 13:33:36,945 INFO L470 ceAbstractionStarter]: WitnessConsidered=2
[2024-09-20 13:33:36,946 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:33:36 BoogieIcfgContainer
[2024-09-20 13:33:36,946 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-09-20 13:33:36,946 INFO L158 Benchmark]: Toolchain (without parser) took 5957.20ms. Allocated memory was 159.4MB in the beginning and 222.3MB in the end (delta: 62.9MB). Free memory was 84.3MB in the beginning and 70.4MB in the end (delta: 13.9MB). Peak memory consumption was 77.3MB. Max. memory is 16.1GB.
[2024-09-20 13:33:36,947 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 159.4MB. Free memory is still 109.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-20 13:33:36,947 INFO L158 Benchmark]: Witness Parser took 0.11ms. Allocated memory is still 159.4MB. Free memory is still 86.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-20 13:33:36,947 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.66ms. Allocated memory is still 159.4MB. Free memory was 84.1MB in the beginning and 70.2MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-09-20 13:33:36,948 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.03ms. Allocated memory is still 159.4MB. Free memory was 70.2MB in the beginning and 68.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-20 13:33:36,948 INFO L158 Benchmark]: Boogie Preprocessor took 25.57ms. Allocated memory is still 159.4MB. Free memory was 68.5MB in the beginning and 67.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-20 13:33:36,948 INFO L158 Benchmark]: RCFGBuilder took 470.78ms. Allocated memory was 159.4MB in the beginning and 222.3MB in the end (delta: 62.9MB). Free memory was 67.0MB in the beginning and 184.8MB in the end (delta: -117.8MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB.
[2024-09-20 13:33:36,948 INFO L158 Benchmark]: TraceAbstraction took 5156.74ms. Allocated memory is still 222.3MB. Free memory was 183.8MB in the beginning and 70.4MB in the end (delta: 113.3MB). Peak memory consumption was 112.3MB. Max. memory is 16.1GB.
[2024-09-20 13:33:36,951 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.18ms. Allocated memory is still 159.4MB. Free memory is still 109.7MB. There was no memory consumed. Max. memory is 16.1GB.
* Witness Parser took 0.11ms. Allocated memory is still 159.4MB. Free memory is still 86.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 260.66ms. Allocated memory is still 159.4MB. Free memory was 84.1MB in the beginning and 70.2MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 38.03ms. Allocated memory is still 159.4MB. Free memory was 70.2MB in the beginning and 68.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 25.57ms. Allocated memory is still 159.4MB. Free memory was 68.5MB in the beginning and 67.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 470.78ms. Allocated memory was 159.4MB in the beginning and 222.3MB in the end (delta: 62.9MB). Free memory was 67.0MB in the beginning and 184.8MB in the end (delta: -117.8MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 5156.74ms. Allocated memory is still 222.3MB. Free memory was 183.8MB in the beginning and 70.4MB in the end (delta: 113.3MB). Peak memory consumption was 112.3MB. 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: 38]: 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: 47]: 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: 14]: procedure precondition always holds
For all program executions holds that procedure precondition always holds at this location
- PositiveResult [Line: 11]: procedure postcondition always holds
For all program executions holds that procedure postcondition 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 3 procedures, 44 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 11, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 114 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 88 mSDsluCounter, 906 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 519 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 404 IncrementalHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 387 mSDtfsCounter, 404 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 440 GetRequests, 390 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=6, InterpolantAutomatonStates: 47, 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, 11 MinimizatonAttempts, 21 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 664 NumberOfCodeBlocks, 664 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 512 ConstructedInterpolants, 0 QuantifiedInterpolants, 1809 SizeOfPredicates, 4 NumberOfNonLiveVariables, 648 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 689/703 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
12 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-09-20 13:33:36,972 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...