./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound5.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version ca4ee3dd
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound5.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6437fdc3c0b95eb5fb3a7e28606efb50e2431074b1de5f5cf4c718827adac36d --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false
--- Real Ultimate output ---
This is Ultimate 0.2.4-tmp.dk.referee-eval-ca4ee3d-m
[2024-09-20 19:21:39,987 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-09-20 19:21:40,054 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-09-20 19:21:40,061 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-09-20 19:21:40,064 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-20 19:21:40,088 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-20 19:21:40,089 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-20 19:21:40,089 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-20 19:21:40,090 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-20 19:21:40,090 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-09-20 19:21:40,091 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-20 19:21:40,091 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-20 19:21:40,092 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-20 19:21:40,094 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-09-20 19:21:40,095 INFO L153 SettingsManager]: * Use SBE=true
[2024-09-20 19:21:40,095 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-20 19:21:40,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-09-20 19:21:40,095 INFO L153 SettingsManager]: * sizeof long=4
[2024-09-20 19:21:40,096 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-09-20 19:21:40,096 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-09-20 19:21:40,096 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-09-20 19:21:40,097 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-09-20 19:21:40,097 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-20 19:21:40,101 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-09-20 19:21:40,101 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-09-20 19:21:40,102 INFO L153 SettingsManager]: * sizeof long double=12
[2024-09-20 19:21:40,102 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-09-20 19:21:40,102 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-09-20 19:21:40,102 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-20 19:21:40,103 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-09-20 19:21:40,103 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-09-20 19:21:40,103 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-09-20 19:21:40,104 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-20 19:21:40,105 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-20 19:21:40,105 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-09-20 19:21:40,106 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-20 19:21:40,106 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-09-20 19:21:40,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-09-20 19:21:40,106 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-20 19:21:40,107 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-20 19:21:40,107 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-09-20 19:21:40,108 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-20 19:21:40,108 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6437fdc3c0b95eb5fb3a7e28606efb50e2431074b1de5f5cf4c718827adac36d
Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false
[2024-09-20 19:21:40,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-20 19:21:40,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-20 19:21:40,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-20 19:21:40,378 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-09-20 19:21:40,379 INFO L274 PluginConnector]: CDTParser initialized
[2024-09-20 19:21:40,380 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound5.c
[2024-09-20 19:21:41,859 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-09-20 19:21:42,047 INFO L384 CDTParser]: Found 1 translation units.
[2024-09-20 19:21:42,047 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound5.c
[2024-09-20 19:21:42,054 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/a4981fec9/432f32db725a4fbca84273fe97fd67cb/FLAG1a6864fe9
[2024-09-20 19:21:42,067 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/a4981fec9/432f32db725a4fbca84273fe97fd67cb
[2024-09-20 19:21:42,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-20 19:21:42,071 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-09-20 19:21:42,072 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-20 19:21:42,072 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-20 19:21:42,079 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-20 19:21:42,079 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 07:21:42" (1/1) ...
[2024-09-20 19:21:42,080 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6209cb69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:42, skipping insertion in model container
[2024-09-20 19:21:42,080 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 07:21:42" (1/1) ...
[2024-09-20 19:21:42,097 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-09-20 19:21:42,241 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/freire1_valuebound5.c[712,725]
[2024-09-20 19:21:42,254 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-20 19:21:42,262 INFO L200 MainTranslator]: Completed pre-run
[2024-09-20 19:21:42,273 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/freire1_valuebound5.c[712,725]
[2024-09-20 19:21:42,278 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-20 19:21:42,294 INFO L204 MainTranslator]: Completed translation
[2024-09-20 19:21:42,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:42 WrapperNode
[2024-09-20 19:21:42,295 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-20 19:21:42,296 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-09-20 19:21:42,297 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-09-20 19:21:42,297 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-09-20 19:21:42,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:42" (1/1) ...
[2024-09-20 19:21:42,312 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:42" (1/1) ...
[2024-09-20 19:21:42,320 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2024-09-20 19:21:42,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-09-20 19:21:42,321 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-20 19:21:42,322 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-20 19:21:42,322 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-09-20 19:21:42,331 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:42" (1/1) ...
[2024-09-20 19:21:42,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:42" (1/1) ...
[2024-09-20 19:21:42,333 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:42" (1/1) ...
[2024-09-20 19:21:42,351 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-09-20 19:21:42,352 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:42" (1/1) ...
[2024-09-20 19:21:42,352 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:42" (1/1) ...
[2024-09-20 19:21:42,357 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:42" (1/1) ...
[2024-09-20 19:21:42,360 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:42" (1/1) ...
[2024-09-20 19:21:42,365 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:42" (1/1) ...
[2024-09-20 19:21:42,365 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:42" (1/1) ...
[2024-09-20 19:21:42,367 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-20 19:21:42,368 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-20 19:21:42,368 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-09-20 19:21:42,368 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-09-20 19:21:42,369 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:42" (1/1) ...
[2024-09-20 19:21:42,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-20 19:21:42,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 19:21:42,401 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 19:21:42,405 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 19:21:42,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-20 19:21:42,452 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-09-20 19:21:42,453 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-09-20 19:21:42,453 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2024-09-20 19:21:42,453 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2024-09-20 19:21:42,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-09-20 19:21:42,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2024-09-20 19:21:42,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2024-09-20 19:21:42,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-20 19:21:42,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-20 19:21:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-09-20 19:21:42,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-09-20 19:21:42,550 INFO L242 CfgBuilder]: Building ICFG
[2024-09-20 19:21:42,552 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-20 19:21:42,686 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live.
[2024-09-20 19:21:42,687 INFO L291 CfgBuilder]: Performing block encoding
[2024-09-20 19:21:42,704 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-20 19:21:42,704 INFO L318 CfgBuilder]: Removed 1 assume(true) statements.
[2024-09-20 19:21:42,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 07:21:42 BoogieIcfgContainer
[2024-09-20 19:21:42,705 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-20 19:21:42,707 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-09-20 19:21:42,707 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-09-20 19:21:42,710 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-09-20 19:21:42,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 07:21:42" (1/3) ...
[2024-09-20 19:21:42,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473c47fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 07:21:42, skipping insertion in model container
[2024-09-20 19:21:42,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:42" (2/3) ...
[2024-09-20 19:21:42,712 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473c47fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 07:21:42, skipping insertion in model container
[2024-09-20 19:21:42,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 07:21:42" (3/3) ...
[2024-09-20 19:21:42,713 INFO L112 eAbstractionObserver]: Analyzing ICFG freire1_valuebound5.c
[2024-09-20 19:21:42,727 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-09-20 19:21:42,727 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-09-20 19:21:42,773 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-09-20 19:21:42,779 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=All, 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;@4c9a015c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-20 19:21:42,780 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-09-20 19:21:42,783 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-09-20 19:21:42,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-09-20 19:21:42,796 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 19:21:42,796 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 19:21:42,797 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-20 19:21:42,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 19:21:42,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1065431329, now seen corresponding path program 1 times
[2024-09-20 19:21:42,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 19:21:42,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946623647]
[2024-09-20 19:21:42,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 19:21:42,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 19:21:42,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 19:21:42,952 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-20 19:21:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 19:21:42,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-20 19:21:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 19:21:42,976 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 19:21:42,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 19:21:42,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946623647]
[2024-09-20 19:21:42,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946623647] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 19:21:42,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 19:21:42,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-20 19:21:42,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342441358]
[2024-09-20 19:21:42,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 19:21:42,982 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-20 19:21:42,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 19:21:42,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-20 19:21:43,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-20 19:21:43,002 INFO L87 Difference]: Start difference. First operand has 25 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-09-20 19:21:43,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 19:21:43,021 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions.
[2024-09-20 19:21:43,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-09-20 19:21:43,024 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16
[2024-09-20 19:21:43,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 19:21:43,030 INFO L225 Difference]: With dead ends: 42
[2024-09-20 19:21:43,030 INFO L226 Difference]: Without dead ends: 21
[2024-09-20 19:21:43,032 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 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 19:21:43,035 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-20 19:21:43,036 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-20 19:21:43,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states.
[2024-09-20 19:21:43,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21.
[2024-09-20 19:21:43,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-09-20 19:21:43,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions.
[2024-09-20 19:21:43,068 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 16
[2024-09-20 19:21:43,068 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 19:21:43,068 INFO L474 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions.
[2024-09-20 19:21:43,068 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-09-20 19:21:43,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 19:21:43,069 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions.
[2024-09-20 19:21:43,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-09-20 19:21:43,070 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 19:21:43,070 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 19:21:43,070 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-09-20 19:21:43,071 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-20 19:21:43,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 19:21:43,071 INFO L85 PathProgramCache]: Analyzing trace with hash -392820709, now seen corresponding path program 1 times
[2024-09-20 19:21:43,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 19:21:43,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160534463]
[2024-09-20 19:21:43,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 19:21:43,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 19:21:43,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-20 19:21:43,094 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-20 19:21:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-20 19:21:43,121 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-20 19:21:43,122 INFO L326 BasicCegarLoop]: Counterexample is feasible
[2024-09-20 19:21:43,123 INFO L785 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-09-20 19:21:43,125 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-09-20 19:21:43,127 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1]
[2024-09-20 19:21:43,141 INFO L165 ceAbstractionStarter]: Computing trace abstraction results
[2024-09-20 19:21:43,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 07:21:43 BoogieIcfgContainer
[2024-09-20 19:21:43,144 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-09-20 19:21:43,144 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-09-20 19:21:43,144 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-09-20 19:21:43,145 INFO L274 PluginConnector]: Witness Printer initialized
[2024-09-20 19:21:43,145 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 07:21:42" (3/4) ...
[2024-09-20 19:21:43,146 INFO L142 WitnessPrinter]: No result that supports witness generation found
[2024-09-20 19:21:43,147 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-09-20 19:21:43,148 INFO L158 Benchmark]: Toolchain (without parser) took 1077.40ms. Allocated memory is still 163.6MB. Free memory was 92.6MB in the beginning and 103.4MB in the end (delta: -10.8MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-20 19:21:43,148 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-20 19:21:43,149 INFO L158 Benchmark]: CACSL2BoogieTranslator took 223.33ms. Allocated memory is still 163.6MB. Free memory was 92.4MB in the beginning and 81.1MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2024-09-20 19:21:43,149 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.15ms. Allocated memory is still 163.6MB. Free memory was 81.1MB in the beginning and 80.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-20 19:21:43,149 INFO L158 Benchmark]: Boogie Preprocessor took 45.49ms. Allocated memory is still 163.6MB. Free memory was 80.0MB in the beginning and 78.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-20 19:21:43,150 INFO L158 Benchmark]: RCFGBuilder took 337.41ms. Allocated memory is still 163.6MB. Free memory was 78.3MB in the beginning and 129.7MB in the end (delta: -51.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2024-09-20 19:21:43,151 INFO L158 Benchmark]: TraceAbstraction took 436.75ms. Allocated memory is still 163.6MB. Free memory was 129.1MB in the beginning and 103.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-09-20 19:21:43,151 INFO L158 Benchmark]: Witness Printer took 3.07ms. Allocated memory is still 163.6MB. Free memory was 103.9MB in the beginning and 103.4MB in the end (delta: 578.5kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-20 19:21:43,153 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 223.33ms. Allocated memory is still 163.6MB. Free memory was 92.4MB in the beginning and 81.1MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 25.15ms. Allocated memory is still 163.6MB. Free memory was 81.1MB in the beginning and 80.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 45.49ms. Allocated memory is still 163.6MB. Free memory was 80.0MB in the beginning and 78.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 337.41ms. Allocated memory is still 163.6MB. Free memory was 78.3MB in the beginning and 129.7MB in the end (delta: -51.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 436.75ms. Allocated memory is still 163.6MB. Free memory was 129.1MB in the beginning and 103.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* Witness Printer took 3.07ms. Allocated memory is still 163.6MB. Free memory was 103.9MB in the beginning and 103.4MB in the end (delta: 578.5kB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable
Unable to prove that a call to reach_error is unreachable
Reason: overapproximation of to_int at line 33, overapproximation of someBinaryDOUBLEComparisonOperation at line 28, overapproximation of someBinaryArithmeticDOUBLEoperation at line 29.
Possible FailurePath:
[L25] int r;
[L26] double a, x;
[L27] a = __VERIFIER_nondet_double()
[L28] CALL assume_abort_if_not(a>=0 && a<=5)
VAL [\old(cond)=1]
[L14] COND FALSE !(!cond)
VAL [\old(cond)=1]
[L28] RET assume_abort_if_not(a>=0 && a<=5)
[L29] x = a / 2.0
[L30] r = 0
VAL [r=0]
[L32] COND TRUE 1
VAL [r=0]
[L33] CALL __VERIFIER_assert((int)(r*r - a - r + 2*x) == 0)
VAL [\old(cond)=0]
[L17] COND TRUE !(cond)
VAL [\old(cond)=0]
[L19] reach_error()
VAL [\old(cond)=0]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 24 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-09-20 19:21:43,183 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...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound5.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6437fdc3c0b95eb5fb3a7e28606efb50e2431074b1de5f5cf4c718827adac36d --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false
--- Real Ultimate output ---
This is Ultimate 0.2.4-tmp.dk.referee-eval-ca4ee3d-m
[2024-09-20 19:21:45,388 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-09-20 19:21:45,476 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-09-20 19:21:45,481 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-09-20 19:21:45,482 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-20 19:21:45,514 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-20 19:21:45,515 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-20 19:21:45,515 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-20 19:21:45,516 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-20 19:21:45,519 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-09-20 19:21:45,520 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-20 19:21:45,520 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-20 19:21:45,521 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-20 19:21:45,521 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-09-20 19:21:45,521 INFO L153 SettingsManager]: * Use SBE=true
[2024-09-20 19:21:45,522 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-20 19:21:45,522 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-09-20 19:21:45,522 INFO L153 SettingsManager]: * sizeof long=4
[2024-09-20 19:21:45,522 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-09-20 19:21:45,523 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-09-20 19:21:45,523 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-09-20 19:21:45,527 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-20 19:21:45,527 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-09-20 19:21:45,528 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-09-20 19:21:45,528 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-09-20 19:21:45,528 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-09-20 19:21:45,528 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-09-20 19:21:45,528 INFO L153 SettingsManager]: * sizeof long double=12
[2024-09-20 19:21:45,529 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-09-20 19:21:45,529 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-09-20 19:21:45,529 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-20 19:21:45,529 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-09-20 19:21:45,530 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-09-20 19:21:45,530 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-09-20 19:21:45,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-20 19:21:45,531 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-20 19:21:45,532 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-09-20 19:21:45,533 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-20 19:21:45,533 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2024-09-20 19:21:45,533 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-09-20 19:21:45,533 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-20 19:21:45,534 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-20 19:21:45,534 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-09-20 19:21:45,535 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-20 19:21:45,535 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
[2024-09-20 19:21:45,535 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6437fdc3c0b95eb5fb3a7e28606efb50e2431074b1de5f5cf4c718827adac36d
Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false
[2024-09-20 19:21:45,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-20 19:21:45,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-20 19:21:45,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-20 19:21:45,907 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-09-20 19:21:45,907 INFO L274 PluginConnector]: CDTParser initialized
[2024-09-20 19:21:45,910 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound5.c
[2024-09-20 19:21:47,511 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-09-20 19:21:47,711 INFO L384 CDTParser]: Found 1 translation units.
[2024-09-20 19:21:47,711 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound5.c
[2024-09-20 19:21:47,719 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/2b4218c35/5b827ead84a045bba7bc9ffba8ea85d6/FLAGf2574872d
[2024-09-20 19:21:47,731 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/2b4218c35/5b827ead84a045bba7bc9ffba8ea85d6
[2024-09-20 19:21:47,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-20 19:21:47,733 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-09-20 19:21:47,734 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-20 19:21:47,735 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-20 19:21:47,740 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-20 19:21:47,741 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 07:21:47" (1/1) ...
[2024-09-20 19:21:47,742 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bee798e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:47, skipping insertion in model container
[2024-09-20 19:21:47,742 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 07:21:47" (1/1) ...
[2024-09-20 19:21:47,759 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-09-20 19:21:47,917 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/freire1_valuebound5.c[712,725]
[2024-09-20 19:21:47,937 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-20 19:21:47,962 INFO L200 MainTranslator]: Completed pre-run
[2024-09-20 19:21:47,973 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/freire1_valuebound5.c[712,725]
[2024-09-20 19:21:47,981 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-20 19:21:48,003 INFO L204 MainTranslator]: Completed translation
[2024-09-20 19:21:48,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:48 WrapperNode
[2024-09-20 19:21:48,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-20 19:21:48,006 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-09-20 19:21:48,006 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-09-20 19:21:48,006 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-09-20 19:21:48,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:48" (1/1) ...
[2024-09-20 19:21:48,028 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:48" (1/1) ...
[2024-09-20 19:21:48,038 INFO L138 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2024-09-20 19:21:48,038 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-09-20 19:21:48,039 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-20 19:21:48,039 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-20 19:21:48,039 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-09-20 19:21:48,049 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:48" (1/1) ...
[2024-09-20 19:21:48,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:48" (1/1) ...
[2024-09-20 19:21:48,055 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:48" (1/1) ...
[2024-09-20 19:21:48,071 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-09-20 19:21:48,071 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:48" (1/1) ...
[2024-09-20 19:21:48,071 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:48" (1/1) ...
[2024-09-20 19:21:48,077 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:48" (1/1) ...
[2024-09-20 19:21:48,083 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:48" (1/1) ...
[2024-09-20 19:21:48,087 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:48" (1/1) ...
[2024-09-20 19:21:48,088 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:48" (1/1) ...
[2024-09-20 19:21:48,102 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-20 19:21:48,104 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-20 19:21:48,104 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-09-20 19:21:48,105 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-09-20 19:21:48,106 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:48" (1/1) ...
[2024-09-20 19:21:48,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-20 19:21:48,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 19:21:48,137 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 19:21:48,143 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 19:21:48,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-20 19:21:48,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-09-20 19:21:48,188 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-09-20 19:21:48,188 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-09-20 19:21:48,189 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2024-09-20 19:21:48,189 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2024-09-20 19:21:48,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2024-09-20 19:21:48,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2024-09-20 19:21:48,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-20 19:21:48,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-20 19:21:48,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-09-20 19:21:48,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-09-20 19:21:48,262 INFO L242 CfgBuilder]: Building ICFG
[2024-09-20 19:21:48,267 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-20 19:21:49,146 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live.
[2024-09-20 19:21:49,146 INFO L291 CfgBuilder]: Performing block encoding
[2024-09-20 19:21:49,178 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-20 19:21:49,178 INFO L318 CfgBuilder]: Removed 1 assume(true) statements.
[2024-09-20 19:21:49,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 07:21:49 BoogieIcfgContainer
[2024-09-20 19:21:49,179 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-20 19:21:49,181 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-09-20 19:21:49,181 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-09-20 19:21:49,186 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-09-20 19:21:49,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 07:21:47" (1/3) ...
[2024-09-20 19:21:49,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc324a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 07:21:49, skipping insertion in model container
[2024-09-20 19:21:49,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:21:48" (2/3) ...
[2024-09-20 19:21:49,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc324a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 07:21:49, skipping insertion in model container
[2024-09-20 19:21:49,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 07:21:49" (3/3) ...
[2024-09-20 19:21:49,191 INFO L112 eAbstractionObserver]: Analyzing ICFG freire1_valuebound5.c
[2024-09-20 19:21:49,207 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-09-20 19:21:49,207 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-09-20 19:21:49,263 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-09-20 19:21:49,270 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=All, 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;@3e059dde, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-20 19:21:49,270 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-09-20 19:21:49,273 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-09-20 19:21:49,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-09-20 19:21:49,284 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 19:21:49,285 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 19:21:49,285 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-20 19:21:49,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 19:21:49,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1065431329, now seen corresponding path program 1 times
[2024-09-20 19:21:49,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-09-20 19:21:49,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [732031440]
[2024-09-20 19:21:49,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 19:21:49,306 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-09-20 19:21:49,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/mathsat
[2024-09-20 19:21:49,309 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-09-20 19:21:49,310 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2024-09-20 19:21:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 19:21:49,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-09-20 19:21:49,660 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-20 19:21:49,670 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 19:21:49,670 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-20 19:21:49,671 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-09-20 19:21:49,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [732031440]
[2024-09-20 19:21:49,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [732031440] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 19:21:49,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 19:21:49,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-20 19:21:49,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372295572]
[2024-09-20 19:21:49,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 19:21:49,678 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-20 19:21:49,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-09-20 19:21:49,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-20 19:21:49,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-20 19:21:49,700 INFO L87 Difference]: Start difference. First operand has 25 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-09-20 19:21:49,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 19:21:49,724 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions.
[2024-09-20 19:21:49,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-09-20 19:21:49,726 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16
[2024-09-20 19:21:49,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 19:21:49,732 INFO L225 Difference]: With dead ends: 42
[2024-09-20 19:21:49,732 INFO L226 Difference]: Without dead ends: 21
[2024-09-20 19:21:49,735 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 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 19:21:49,738 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-20 19:21:49,739 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-20 19:21:49,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states.
[2024-09-20 19:21:49,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21.
[2024-09-20 19:21:49,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-09-20 19:21:49,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions.
[2024-09-20 19:21:49,770 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 16
[2024-09-20 19:21:49,771 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 19:21:49,771 INFO L474 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions.
[2024-09-20 19:21:49,771 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-09-20 19:21:49,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 19:21:49,772 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions.
[2024-09-20 19:21:49,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-09-20 19:21:49,773 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 19:21:49,773 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 19:21:49,790 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2024-09-20 19:21:49,978 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/certificate-witnesses-artifact/automizer/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-09-20 19:21:49,978 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-20 19:21:49,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 19:21:49,979 INFO L85 PathProgramCache]: Analyzing trace with hash -392820709, now seen corresponding path program 1 times
[2024-09-20 19:21:49,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-09-20 19:21:49,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1887319025]
[2024-09-20 19:21:49,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 19:21:49,981 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-09-20 19:21:49,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/mathsat
[2024-09-20 19:21:49,984 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-09-20 19:21:49,986 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2024-09-20 19:21:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-20 19:21:50,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-20 19:21:50,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-20 19:21:50,502 ERROR L246 FreeRefinementEngine]: Caught known exception: Invalid model
[2024-09-20 19:21:50,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [827205606]
[2024-09-20 19:21:50,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 19:21:50,503 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-09-20 19:21:50,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/cvc4
[2024-09-20 19:21:50,507 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-09-20 19:21:50,510 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2024-09-20 19:21:51,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 19:21:51,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-09-20 19:21:51,197 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-20 19:22:13,503 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-09-20 19:22:21,632 WARN L293 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-09-20 19:22:26,791 WARN L293 SmtUtils]: Spent 5.16s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-09-20 19:22:30,842 WARN L854 $PredicateComparison]: unable to prove that (or (and (exists ((v_main_~a~0_BEFORE_CALL_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 v_main_~a~0_BEFORE_CALL_1) .cse0) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) (fp.div roundNearestTiesToEven v_main_~a~0_BEFORE_CALL_1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0))))) (_ bv0 32))) (fp.geq v_main_~a~0_BEFORE_CALL_1 .cse0) (fp.leq v_main_~a~0_BEFORE_CALL_1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv5 32)))))) (= (_ bv0 32) |c___VERIFIER_assert_#in~cond|)) (= (_ bv1 32) |c___VERIFIER_assert_#in~cond|)) is different from false
[2024-09-20 19:22:47,418 WARN L293 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-09-20 19:22:54,291 WARN L293 SmtUtils]: Spent 6.87s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-09-20 19:22:58,326 WARN L854 $PredicateComparison]: unable to prove that (or (and (= (_ bv0 32) c___VERIFIER_assert_~cond) (exists ((v_main_~a~0_BEFORE_CALL_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 v_main_~a~0_BEFORE_CALL_1) .cse0) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) (fp.div roundNearestTiesToEven v_main_~a~0_BEFORE_CALL_1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0))))) (_ bv0 32))) (fp.geq v_main_~a~0_BEFORE_CALL_1 .cse0) (fp.leq v_main_~a~0_BEFORE_CALL_1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv5 32))))))) (= (_ bv1 32) c___VERIFIER_assert_~cond)) is different from false
[2024-09-20 19:23:10,439 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-09-20 19:23:18,595 WARN L293 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-09-20 19:23:27,371 WARN L854 $PredicateComparison]: unable to prove that (exists ((v_main_~a~0_BEFORE_CALL_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 v_main_~a~0_BEFORE_CALL_1) .cse0) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) (fp.div roundNearestTiesToEven v_main_~a~0_BEFORE_CALL_1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0))))) (_ bv0 32))) (fp.geq v_main_~a~0_BEFORE_CALL_1 .cse0) (fp.leq v_main_~a~0_BEFORE_CALL_1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv5 32)))))) is different from false
[2024-09-20 19:23:31,395 WARN L876 $PredicateComparison]: unable to prove that (exists ((v_main_~a~0_BEFORE_CALL_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 v_main_~a~0_BEFORE_CALL_1) .cse0) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) (fp.div roundNearestTiesToEven v_main_~a~0_BEFORE_CALL_1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0))))) (_ bv0 32))) (fp.geq v_main_~a~0_BEFORE_CALL_1 .cse0) (fp.leq v_main_~a~0_BEFORE_CALL_1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv5 32)))))) is different from true
[2024-09-20 19:23:31,395 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 19:23:31,395 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-20 19:23:31,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-09-20 19:23:31,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1887319025]
[2024-09-20 19:23:31,396 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-20 19:23:31,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [827205606]
[2024-09-20 19:23:31,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [827205606] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 19:23:31,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 19:23:31,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2024-09-20 19:23:31,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538741566]
[2024-09-20 19:23:31,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 19:23:31,398 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-09-20 19:23:31,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-09-20 19:23:31,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-09-20 19:23:31,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=39, Unknown=4, NotChecked=42, Total=110
[2024-09-20 19:23:31,399 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 11 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-09-20 19:23:40,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-09-20 19:23:41,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-09-20 19:24:31,120 WARN L293 SmtUtils]: Spent 35.13s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-09-20 19:24:32,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-09-20 19:25:54,534 WARN L293 SmtUtils]: Spent 38.95s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-09-20 19:25:58,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-09-20 19:26:02,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-09-20 19:26:06,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-09-20 19:26:10,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-09-20 19:26:14,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-09-20 19:26:18,696 WARN L854 $PredicateComparison]: unable to prove that (and (exists ((v_main_~a~0_BEFORE_CALL_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 v_main_~a~0_BEFORE_CALL_1) .cse0) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) (fp.div roundNearestTiesToEven v_main_~a~0_BEFORE_CALL_1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0))))) (_ bv0 32))) (fp.geq v_main_~a~0_BEFORE_CALL_1 .cse0) (fp.leq v_main_~a~0_BEFORE_CALL_1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv5 32)))))) (= ((_ sign_extend 24) (_ bv0 8)) (select (select |c_#memory_int#0| (_ bv1 32)) (_ bv1 32))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false
[2024-09-20 19:26:22,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-09-20 19:26:24,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []