./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound5.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --traceabstraction.encode.modifies.clause.in.ensures.clause.of.contracts true --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version fb1cb0b9
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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/egcd-ll_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 3f9b33d2a8120d9ea8a3a6c5d650c2a90b549ffb583b3e9890b411aeb4530efd --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --traceabstraction.encode.modifies.clause.in.ensures.clause.of.contracts true --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false
--- Real Ultimate output ---
This is Ultimate 0.2.4-tmp.dk.referee-eval-fb1cb0b-m
[2024-09-25 10:52:14,889 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-09-25 10:52:14,957 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-09-25 10:52:14,964 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-09-25 10:52:14,965 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-25 10:52:14,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-25 10:52:14,992 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-25 10:52:14,992 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-25 10:52:14,993 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-25 10:52:14,993 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-09-25 10:52:14,994 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-25 10:52:14,994 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-25 10:52:14,996 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-25 10:52:14,996 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-09-25 10:52:14,997 INFO L153 SettingsManager]: * Use SBE=true
[2024-09-25 10:52:14,997 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-25 10:52:14,997 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-09-25 10:52:14,998 INFO L153 SettingsManager]: * sizeof long=4
[2024-09-25 10:52:14,998 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-09-25 10:52:14,998 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-09-25 10:52:14,998 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-09-25 10:52:15,001 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-09-25 10:52:15,002 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-25 10:52:15,002 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-09-25 10:52:15,002 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-09-25 10:52:15,003 INFO L153 SettingsManager]: * sizeof long double=12
[2024-09-25 10:52:15,003 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-09-25 10:52:15,003 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-09-25 10:52:15,003 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-25 10:52:15,003 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-09-25 10:52:15,004 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-09-25 10:52:15,004 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-09-25 10:52:15,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-25 10:52:15,004 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-25 10:52:15,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-09-25 10:52:15,005 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-25 10:52:15,005 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-09-25 10:52:15,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-09-25 10:52:15,008 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-25 10:52:15,008 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-25 10:52:15,008 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-09-25 10:52:15,009 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-25 10:52:15,009 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 -> 3f9b33d2a8120d9ea8a3a6c5d650c2a90b549ffb583b3e9890b411aeb4530efd
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.plugins.generator.traceabstraction: Encode 'modifies' clause in 'ensures' clause of contracts -> true
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
[2024-09-25 10:52:15,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-25 10:52:15,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-25 10:52:15,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-25 10:52:15,326 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-09-25 10:52:15,327 INFO L274 PluginConnector]: CDTParser initialized
[2024-09-25 10:52:15,328 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound5.c
[2024-09-25 10:52:16,793 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-09-25 10:52:16,947 INFO L384 CDTParser]: Found 1 translation units.
[2024-09-25 10:52:16,947 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound5.c
[2024-09-25 10:52:16,956 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/6bfdc618a/7bfdd65cd4ea445aa954f16394ea29be/FLAG11b2cece0
[2024-09-25 10:52:16,970 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/6bfdc618a/7bfdd65cd4ea445aa954f16394ea29be
[2024-09-25 10:52:16,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-25 10:52:16,975 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-09-25 10:52:16,976 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-25 10:52:16,976 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-25 10:52:16,982 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-25 10:52:16,983 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:52:16" (1/1) ...
[2024-09-25 10:52:16,984 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8f7b211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:16, skipping insertion in model container
[2024-09-25 10:52:16,984 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:52:16" (1/1) ...
[2024-09-25 10:52:17,001 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-09-25 10:52:17,137 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/egcd-ll_valuebound5.c[489,502]
[2024-09-25 10:52:17,160 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-25 10:52:17,172 INFO L200 MainTranslator]: Completed pre-run
[2024-09-25 10:52:17,183 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/egcd-ll_valuebound5.c[489,502]
[2024-09-25 10:52:17,190 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-25 10:52:17,206 INFO L204 MainTranslator]: Completed translation
[2024-09-25 10:52:17,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:17 WrapperNode
[2024-09-25 10:52:17,207 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-25 10:52:17,207 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-09-25 10:52:17,208 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-09-25 10:52:17,208 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-09-25 10:52:17,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:17" (1/1) ...
[2024-09-25 10:52:17,220 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:17" (1/1) ...
[2024-09-25 10:52:17,226 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2024-09-25 10:52:17,226 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-09-25 10:52:17,227 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-25 10:52:17,227 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-25 10:52:17,227 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-09-25 10:52:17,236 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:17" (1/1) ...
[2024-09-25 10:52:17,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:17" (1/1) ...
[2024-09-25 10:52:17,242 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:17" (1/1) ...
[2024-09-25 10:52:17,257 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].
[2024-09-25 10:52:17,257 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:17" (1/1) ...
[2024-09-25 10:52:17,257 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:17" (1/1) ...
[2024-09-25 10:52:17,263 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:17" (1/1) ...
[2024-09-25 10:52:17,265 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:17" (1/1) ...
[2024-09-25 10:52:17,267 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:17" (1/1) ...
[2024-09-25 10:52:17,268 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:17" (1/1) ...
[2024-09-25 10:52:17,269 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-25 10:52:17,274 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-25 10:52:17,274 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-09-25 10:52:17,274 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-09-25 10:52:17,275 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:17" (1/1) ...
[2024-09-25 10:52:17,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-25 10:52:17,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-25 10:52:17,306 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)
[2024-09-25 10:52:17,310 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
[2024-09-25 10:52:17,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-25 10:52:17,365 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-09-25 10:52:17,366 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-09-25 10:52:17,366 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2024-09-25 10:52:17,366 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2024-09-25 10:52:17,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-09-25 10:52:17,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2024-09-25 10:52:17,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2024-09-25 10:52:17,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-25 10:52:17,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-25 10:52:17,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-09-25 10:52:17,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-09-25 10:52:17,418 INFO L241 CfgBuilder]: Building ICFG
[2024-09-25 10:52:17,420 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-25 10:52:17,577 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live.
[2024-09-25 10:52:17,577 INFO L290 CfgBuilder]: Performing block encoding
[2024-09-25 10:52:17,600 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-25 10:52:17,601 INFO L317 CfgBuilder]: Removed 1 assume(true) statements.
[2024-09-25 10:52:17,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:52:17 BoogieIcfgContainer
[2024-09-25 10:52:17,602 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-25 10:52:17,603 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-09-25 10:52:17,604 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-09-25 10:52:17,607 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-09-25 10:52:17,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:52:16" (1/3) ...
[2024-09-25 10:52:17,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a75b9a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:52:17, skipping insertion in model container
[2024-09-25 10:52:17,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:17" (2/3) ...
[2024-09-25 10:52:17,609 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a75b9a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:52:17, skipping insertion in model container
[2024-09-25 10:52:17,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:52:17" (3/3) ...
[2024-09-25 10:52:17,610 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd-ll_valuebound5.c
[2024-09-25 10:52:17,626 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-09-25 10:52:17,627 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-09-25 10:52:17,677 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-09-25 10:52:17,684 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;@31a54fbf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-25 10:52:17,685 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-09-25 10:52:17,688 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13)
[2024-09-25 10:52:17,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2024-09-25 10:52:17,696 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-25 10:52:17,697 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-25 10:52:17,697 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 10:52:17,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:52:17,702 INFO L85 PathProgramCache]: Analyzing trace with hash 963610160, now seen corresponding path program 1 times
[2024-09-25 10:52:17,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 10:52:17,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056632070]
[2024-09-25 10:52:17,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:52:17,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 10:52:17,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:17,839 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-25 10:52:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:17,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-25 10:52:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:17,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2024-09-25 10:52:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:17,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-09-25 10:52:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:17,868 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2024-09-25 10:52:17,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:17,874 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2024-09-25 10:52:17,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 10:52:17,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056632070]
[2024-09-25 10:52:17,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056632070] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-25 10:52:17,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-25 10:52:17,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-25 10:52:17,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478697352]
[2024-09-25 10:52:17,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-25 10:52:17,880 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-25 10:52:17,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 10:52:17,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-25 10:52:17,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-25 10:52:17,905 INFO L87 Difference]: Start difference. First operand has 35 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-09-25 10:52:17,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 10:52:17,936 INFO L93 Difference]: Finished difference Result 64 states and 102 transitions.
[2024-09-25 10:52:17,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-09-25 10:52:17,939 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 32
[2024-09-25 10:52:17,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 10:52:17,945 INFO L225 Difference]: With dead ends: 64
[2024-09-25 10:52:17,945 INFO L226 Difference]: Without dead ends: 31
[2024-09-25 10:52:17,952 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-25 10:52:17,954 INFO L434 NwaCegarLoop]: 43 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, 43 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
[2024-09-25 10:52:17,959 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-25 10:52:17,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2024-09-25 10:52:17,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31.
[2024-09-25 10:52:17,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-09-25 10:52:17,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions.
[2024-09-25 10:52:17,990 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 41 transitions. Word has length 32
[2024-09-25 10:52:17,990 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-25 10:52:17,990 INFO L474 AbstractCegarLoop]: Abstraction has 31 states and 41 transitions.
[2024-09-25 10:52:17,990 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-09-25 10:52:17,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:52:17,991 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions.
[2024-09-25 10:52:17,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2024-09-25 10:52:17,994 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-25 10:52:17,995 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-25 10:52:17,995 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-09-25 10:52:17,995 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 10:52:17,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:52:17,996 INFO L85 PathProgramCache]: Analyzing trace with hash -914175556, now seen corresponding path program 1 times
[2024-09-25 10:52:17,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 10:52:17,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668324959]
[2024-09-25 10:52:17,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:52:17,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 10:52:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-25 10:52:18,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [9036428]
[2024-09-25 10:52:18,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:52:18,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 10:52:18,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-25 10:52:18,049 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)
[2024-09-25 10:52:18,054 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-09-25 10:52:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:18,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-09-25 10:52:18,143 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-25 10:52:18,217 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2024-09-25 10:52:18,221 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-25 10:52:18,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 10:52:18,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668324959]
[2024-09-25 10:52:18,222 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-25 10:52:18,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9036428]
[2024-09-25 10:52:18,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9036428] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-25 10:52:18,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-25 10:52:18,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-09-25 10:52:18,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038788526]
[2024-09-25 10:52:18,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-25 10:52:18,224 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-25 10:52:18,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 10:52:18,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-25 10:52:18,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-09-25 10:52:18,227 INFO L87 Difference]: Start difference. First operand 31 states and 41 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5)
[2024-09-25 10:52:18,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 10:52:18,296 INFO L93 Difference]: Finished difference Result 47 states and 64 transitions.
[2024-09-25 10:52:18,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-09-25 10:52:18,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 32
[2024-09-25 10:52:18,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 10:52:18,298 INFO L225 Difference]: With dead ends: 47
[2024-09-25 10:52:18,298 INFO L226 Difference]: Without dead ends: 45
[2024-09-25 10:52:18,298 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-09-25 10:52:18,299 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 5 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-25 10:52:18,300 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 129 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-25 10:52:18,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2024-09-25 10:52:18,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44.
[2024-09-25 10:52:18,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 20 states have (on average 1.25) internal successors, (25), 22 states have internal predecessors, (25), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17)
[2024-09-25 10:52:18,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 61 transitions.
[2024-09-25 10:52:18,313 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 61 transitions. Word has length 32
[2024-09-25 10:52:18,313 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-25 10:52:18,313 INFO L474 AbstractCegarLoop]: Abstraction has 44 states and 61 transitions.
[2024-09-25 10:52:18,315 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5)
[2024-09-25 10:52:18,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:52:18,318 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 61 transitions.
[2024-09-25 10:52:18,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2024-09-25 10:52:18,318 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-25 10:52:18,319 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-25 10:52:18,333 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-09-25 10:52:18,524 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 10:52:18,525 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 10:52:18,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:52:18,527 INFO L85 PathProgramCache]: Analyzing trace with hash 737940505, now seen corresponding path program 1 times
[2024-09-25 10:52:18,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 10:52:18,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405675863]
[2024-09-25 10:52:18,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:52:18,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 10:52:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-25 10:52:18,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [526183170]
[2024-09-25 10:52:18,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:52:18,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 10:52:18,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-25 10:52:18,548 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)
[2024-09-25 10:52:18,550 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-09-25 10:52:18,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:18,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-09-25 10:52:18,590 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-25 10:52:18,647 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2024-09-25 10:52:18,647 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-25 10:52:18,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 10:52:18,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405675863]
[2024-09-25 10:52:18,648 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-25 10:52:18,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526183170]
[2024-09-25 10:52:18,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526183170] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-25 10:52:18,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-25 10:52:18,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-09-25 10:52:18,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204260903]
[2024-09-25 10:52:18,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-25 10:52:18,649 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-25 10:52:18,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 10:52:18,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-25 10:52:18,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-09-25 10:52:18,650 INFO L87 Difference]: Start difference. First operand 44 states and 61 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6)
[2024-09-25 10:52:18,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 10:52:18,713 INFO L93 Difference]: Finished difference Result 51 states and 67 transitions.
[2024-09-25 10:52:18,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-09-25 10:52:18,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 37
[2024-09-25 10:52:18,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 10:52:18,716 INFO L225 Difference]: With dead ends: 51
[2024-09-25 10:52:18,717 INFO L226 Difference]: Without dead ends: 49
[2024-09-25 10:52:18,717 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-09-25 10:52:18,718 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 6 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-25 10:52:18,720 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 131 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-25 10:52:18,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states.
[2024-09-25 10:52:18,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48.
[2024-09-25 10:52:18,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 25 states have internal predecessors, (28), 19 states have call successors, (19), 6 states have call predecessors, (19), 5 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17)
[2024-09-25 10:52:18,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 64 transitions.
[2024-09-25 10:52:18,732 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 64 transitions. Word has length 37
[2024-09-25 10:52:18,732 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-25 10:52:18,732 INFO L474 AbstractCegarLoop]: Abstraction has 48 states and 64 transitions.
[2024-09-25 10:52:18,732 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6)
[2024-09-25 10:52:18,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:52:18,733 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 64 transitions.
[2024-09-25 10:52:18,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43
[2024-09-25 10:52:18,734 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-25 10:52:18,734 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-25 10:52:18,748 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-09-25 10:52:18,938 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 10:52:18,939 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 10:52:18,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:52:18,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1385223068, now seen corresponding path program 1 times
[2024-09-25 10:52:18,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 10:52:18,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150929063]
[2024-09-25 10:52:18,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:52:18,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 10:52:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-25 10:52:18,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261788736]
[2024-09-25 10:52:18,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:52:18,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 10:52:18,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-25 10:52:18,963 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)
[2024-09-25 10:52:18,964 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-09-25 10:52:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:19,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-09-25 10:52:19,027 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-25 10:52:19,087 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2024-09-25 10:52:19,087 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-25 10:52:19,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 10:52:19,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150929063]
[2024-09-25 10:52:19,088 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-25 10:52:19,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261788736]
[2024-09-25 10:52:19,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261788736] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-25 10:52:19,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-25 10:52:19,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-09-25 10:52:19,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903374541]
[2024-09-25 10:52:19,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-25 10:52:19,089 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-25 10:52:19,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 10:52:19,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-25 10:52:19,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-09-25 10:52:19,097 INFO L87 Difference]: Start difference. First operand 48 states and 64 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-09-25 10:52:19,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 10:52:19,148 INFO L93 Difference]: Finished difference Result 73 states and 104 transitions.
[2024-09-25 10:52:19,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-09-25 10:52:19,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42
[2024-09-25 10:52:19,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 10:52:19,151 INFO L225 Difference]: With dead ends: 73
[2024-09-25 10:52:19,152 INFO L226 Difference]: Without dead ends: 69
[2024-09-25 10:52:19,153 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-09-25 10:52:19,155 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 6 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-25 10:52:19,156 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 130 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-25 10:52:19,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states.
[2024-09-25 10:52:19,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69.
[2024-09-25 10:52:19,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 32 states have (on average 1.28125) internal successors, (41), 36 states have internal predecessors, (41), 30 states have call successors, (30), 7 states have call predecessors, (30), 6 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26)
[2024-09-25 10:52:19,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 97 transitions.
[2024-09-25 10:52:19,184 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 97 transitions. Word has length 42
[2024-09-25 10:52:19,185 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-25 10:52:19,185 INFO L474 AbstractCegarLoop]: Abstraction has 69 states and 97 transitions.
[2024-09-25 10:52:19,185 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-09-25 10:52:19,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:52:19,186 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 97 transitions.
[2024-09-25 10:52:19,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2024-09-25 10:52:19,186 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-25 10:52:19,186 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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]
[2024-09-25 10:52:19,202 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-09-25 10:52:19,393 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 10:52:19,394 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 10:52:19,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:52:19,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1071635405, now seen corresponding path program 1 times
[2024-09-25 10:52:19,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 10:52:19,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304339496]
[2024-09-25 10:52:19,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:52:19,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 10:52:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:19,540 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-25 10:52:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:19,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-25 10:52:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:19,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2024-09-25 10:52:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:19,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-09-25 10:52:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:19,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2024-09-25 10:52:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:19,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2024-09-25 10:52:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:19,573 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-09-25 10:52:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:19,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-09-25 10:52:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:19,586 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked.
[2024-09-25 10:52:19,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 10:52:19,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304339496]
[2024-09-25 10:52:19,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304339496] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-25 10:52:19,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-25 10:52:19,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-09-25 10:52:19,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441167379]
[2024-09-25 10:52:19,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-25 10:52:19,588 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-25 10:52:19,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 10:52:19,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-25 10:52:19,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-09-25 10:52:19,591 INFO L87 Difference]: Start difference. First operand 69 states and 97 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8)
[2024-09-25 10:52:19,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 10:52:19,639 INFO L93 Difference]: Finished difference Result 75 states and 102 transitions.
[2024-09-25 10:52:19,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-09-25 10:52:19,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 48
[2024-09-25 10:52:19,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 10:52:19,642 INFO L225 Difference]: With dead ends: 75
[2024-09-25 10:52:19,643 INFO L226 Difference]: Without dead ends: 73
[2024-09-25 10:52:19,643 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-09-25 10:52:19,644 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 3 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-25 10:52:19,644 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 140 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-25 10:52:19,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states.
[2024-09-25 10:52:19,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73.
[2024-09-25 10:52:19,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 39 states have internal predecessors, (44), 30 states have call successors, (30), 8 states have call predecessors, (30), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26)
[2024-09-25 10:52:19,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 100 transitions.
[2024-09-25 10:52:19,663 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 100 transitions. Word has length 48
[2024-09-25 10:52:19,663 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-25 10:52:19,665 INFO L474 AbstractCegarLoop]: Abstraction has 73 states and 100 transitions.
[2024-09-25 10:52:19,665 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8)
[2024-09-25 10:52:19,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:52:19,665 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 100 transitions.
[2024-09-25 10:52:19,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2024-09-25 10:52:19,666 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-25 10:52:19,667 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-25 10:52:19,667 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-09-25 10:52:19,667 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 10:52:19,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:52:19,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1501538128, now seen corresponding path program 1 times
[2024-09-25 10:52:19,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 10:52:19,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009947979]
[2024-09-25 10:52:19,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:52:19,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 10:52:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-25 10:52:19,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [383426422]
[2024-09-25 10:52:19,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:52:19,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 10:52:19,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-25 10:52:19,703 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)
[2024-09-25 10:52:19,706 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-09-25 10:52:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:19,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-09-25 10:52:19,749 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-25 10:52:19,889 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked.
[2024-09-25 10:52:19,890 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-25 10:52:19,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 10:52:19,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009947979]
[2024-09-25 10:52:19,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-25 10:52:19,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383426422]
[2024-09-25 10:52:19,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383426422] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-25 10:52:19,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-25 10:52:19,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-09-25 10:52:19,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518527053]
[2024-09-25 10:52:19,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-25 10:52:19,891 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-25 10:52:19,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 10:52:19,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-25 10:52:19,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-09-25 10:52:19,892 INFO L87 Difference]: Start difference. First operand 73 states and 100 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8)
[2024-09-25 10:52:19,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 10:52:19,934 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions.
[2024-09-25 10:52:19,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-09-25 10:52:19,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 50
[2024-09-25 10:52:19,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 10:52:19,935 INFO L225 Difference]: With dead ends: 83
[2024-09-25 10:52:19,935 INFO L226 Difference]: Without dead ends: 80
[2024-09-25 10:52:19,936 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-09-25 10:52:19,936 INFO L434 NwaCegarLoop]: 35 mSDtfsCounter, 4 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-25 10:52:19,937 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 132 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-25 10:52:19,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states.
[2024-09-25 10:52:19,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78.
[2024-09-25 10:52:19,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 41 states have (on average 1.2195121951219512) internal successors, (50), 44 states have internal predecessors, (50), 27 states have call successors, (27), 10 states have call predecessors, (27), 9 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24)
[2024-09-25 10:52:19,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 101 transitions.
[2024-09-25 10:52:19,952 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 101 transitions. Word has length 50
[2024-09-25 10:52:19,952 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-25 10:52:19,952 INFO L474 AbstractCegarLoop]: Abstraction has 78 states and 101 transitions.
[2024-09-25 10:52:19,953 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8)
[2024-09-25 10:52:19,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:52:19,953 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 101 transitions.
[2024-09-25 10:52:19,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2024-09-25 10:52:19,954 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-25 10:52:19,955 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 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]
[2024-09-25 10:52:19,980 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-09-25 10:52:20,155 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 10:52:20,156 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 10:52:20,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:52:20,156 INFO L85 PathProgramCache]: Analyzing trace with hash 789508930, now seen corresponding path program 1 times
[2024-09-25 10:52:20,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 10:52:20,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499590790]
[2024-09-25 10:52:20,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:52:20,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 10:52:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:20,296 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-25 10:52:20,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:20,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-25 10:52:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:20,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2024-09-25 10:52:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:20,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-09-25 10:52:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:20,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2024-09-25 10:52:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:20,324 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2024-09-25 10:52:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:20,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-09-25 10:52:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:20,348 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-09-25 10:52:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:20,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2024-09-25 10:52:20,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:20,369 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked.
[2024-09-25 10:52:20,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 10:52:20,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499590790]
[2024-09-25 10:52:20,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499590790] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-25 10:52:20,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341668894]
[2024-09-25 10:52:20,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:52:20,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 10:52:20,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-25 10:52:20,373 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)
[2024-09-25 10:52:20,375 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-09-25 10:52:20,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:20,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-09-25 10:52:20,414 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-25 10:52:20,508 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked.
[2024-09-25 10:52:20,510 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-25 10:52:20,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341668894] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-25 10:52:20,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-09-25 10:52:20,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2024-09-25 10:52:20,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67782151]
[2024-09-25 10:52:20,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-25 10:52:20,511 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-09-25 10:52:20,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 10:52:20,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-09-25 10:52:20,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2024-09-25 10:52:20,512 INFO L87 Difference]: Start difference. First operand 78 states and 101 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9)
[2024-09-25 10:52:20,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 10:52:20,598 INFO L93 Difference]: Finished difference Result 91 states and 113 transitions.
[2024-09-25 10:52:20,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-09-25 10:52:20,599 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 53
[2024-09-25 10:52:20,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 10:52:20,600 INFO L225 Difference]: With dead ends: 91
[2024-09-25 10:52:20,600 INFO L226 Difference]: Without dead ends: 87
[2024-09-25 10:52:20,600 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156
[2024-09-25 10:52:20,600 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 6 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-25 10:52:20,601 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 157 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-25 10:52:20,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states.
[2024-09-25 10:52:20,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86.
[2024-09-25 10:52:20,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 47 states have (on average 1.1702127659574468) internal successors, (55), 50 states have internal predecessors, (55), 27 states have call successors, (27), 12 states have call predecessors, (27), 11 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24)
[2024-09-25 10:52:20,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 106 transitions.
[2024-09-25 10:52:20,618 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 106 transitions. Word has length 53
[2024-09-25 10:52:20,618 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-25 10:52:20,618 INFO L474 AbstractCegarLoop]: Abstraction has 86 states and 106 transitions.
[2024-09-25 10:52:20,618 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9)
[2024-09-25 10:52:20,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:52:20,621 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 106 transitions.
[2024-09-25 10:52:20,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2024-09-25 10:52:20,622 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-25 10:52:20,622 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-25 10:52:20,647 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-09-25 10:52:20,822 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6
[2024-09-25 10:52:20,823 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 10:52:20,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:52:20,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1427018501, now seen corresponding path program 2 times
[2024-09-25 10:52:20,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 10:52:20,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414769598]
[2024-09-25 10:52:20,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:52:20,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 10:52:20,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-25 10:52:20,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1446624349]
[2024-09-25 10:52:20,849 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-09-25 10:52:20,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 10:52:20,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-25 10:52:20,853 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-25 10:52:20,855 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-09-25 10:52:20,895 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-09-25 10:52:20,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-09-25 10:52:20,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 35 conjuncts are in the unsatisfiable core
[2024-09-25 10:52:20,899 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-25 10:52:21,141 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 25 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2024-09-25 10:52:21,141 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-25 10:52:21,553 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked.
[2024-09-25 10:52:21,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 10:52:21,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414769598]
[2024-09-25 10:52:21,553 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-25 10:52:21,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446624349]
[2024-09-25 10:52:21,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446624349] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-25 10:52:21,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-09-25 10:52:21,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 17
[2024-09-25 10:52:21,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199241614]
[2024-09-25 10:52:21,556 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-09-25 10:52:21,557 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-09-25 10:52:21,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 10:52:21,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-09-25 10:52:21,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272
[2024-09-25 10:52:21,558 INFO L87 Difference]: Start difference. First operand 86 states and 106 transitions. Second operand has 17 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 13 states have internal predecessors, (32), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14)
[2024-09-25 10:52:25,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.84s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2024-09-25 10:52:25,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 10:52:25,885 INFO L93 Difference]: Finished difference Result 128 states and 166 transitions.
[2024-09-25 10:52:25,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2024-09-25 10:52:25,885 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 13 states have internal predecessors, (32), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) Word has length 55
[2024-09-25 10:52:25,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 10:52:25,886 INFO L225 Difference]: With dead ends: 128
[2024-09-25 10:52:25,886 INFO L226 Difference]: Without dead ends: 126
[2024-09-25 10:52:25,887 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506
[2024-09-25 10:52:25,887 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 30 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time
[2024-09-25 10:52:25,887 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 252 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time]
[2024-09-25 10:52:25,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states.
[2024-09-25 10:52:25,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 94.
[2024-09-25 10:52:25,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 53 states have (on average 1.150943396226415) internal successors, (61), 56 states have internal predecessors, (61), 27 states have call successors, (27), 14 states have call predecessors, (27), 13 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24)
[2024-09-25 10:52:25,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 112 transitions.
[2024-09-25 10:52:25,909 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 112 transitions. Word has length 55
[2024-09-25 10:52:25,909 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-25 10:52:25,909 INFO L474 AbstractCegarLoop]: Abstraction has 94 states and 112 transitions.
[2024-09-25 10:52:25,910 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 13 states have internal predecessors, (32), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14)
[2024-09-25 10:52:25,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:52:25,910 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 112 transitions.
[2024-09-25 10:52:25,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2024-09-25 10:52:25,911 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-25 10:52:25,911 INFO L216 NwaCegarLoop]: trace histogram [6, 5, 5, 4, 4, 4, 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]
[2024-09-25 10:52:25,927 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2024-09-25 10:52:26,115 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 10:52:26,116 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 10:52:26,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:52:26,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1563984878, now seen corresponding path program 1 times
[2024-09-25 10:52:26,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 10:52:26,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111903965]
[2024-09-25 10:52:26,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:52:26,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 10:52:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-25 10:52:26,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1063222036]
[2024-09-25 10:52:26,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:52:26,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 10:52:26,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-25 10:52:26,138 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-25 10:52:26,142 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-09-25 10:52:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:26,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 41 conjuncts are in the unsatisfiable core
[2024-09-25 10:52:26,187 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-25 10:52:26,441 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 21 proven. 17 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2024-09-25 10:52:26,441 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-25 10:52:26,756 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked.
[2024-09-25 10:52:26,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 10:52:26,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111903965]
[2024-09-25 10:52:26,756 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-25 10:52:26,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063222036]
[2024-09-25 10:52:26,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063222036] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-25 10:52:26,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-09-25 10:52:26,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9] total 19
[2024-09-25 10:52:26,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613552995]
[2024-09-25 10:52:26,756 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-09-25 10:52:26,757 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-09-25 10:52:26,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 10:52:26,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-09-25 10:52:26,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342
[2024-09-25 10:52:26,757 INFO L87 Difference]: Start difference. First operand 94 states and 112 transitions. Second operand has 19 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 15 states have internal predecessors, (32), 7 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17)
[2024-09-25 10:52:27,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 10:52:27,268 INFO L93 Difference]: Finished difference Result 129 states and 165 transitions.
[2024-09-25 10:52:27,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2024-09-25 10:52:27,268 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 15 states have internal predecessors, (32), 7 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 60
[2024-09-25 10:52:27,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 10:52:27,269 INFO L225 Difference]: With dead ends: 129
[2024-09-25 10:52:27,270 INFO L226 Difference]: Without dead ends: 111
[2024-09-25 10:52:27,270 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506
[2024-09-25 10:52:27,270 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 27 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-09-25 10:52:27,271 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 242 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-09-25 10:52:27,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states.
[2024-09-25 10:52:27,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 90.
[2024-09-25 10:52:27,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 53 states have (on average 1.1320754716981132) internal successors, (60), 55 states have internal predecessors, (60), 23 states have call successors, (23), 14 states have call predecessors, (23), 13 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2024-09-25 10:52:27,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 103 transitions.
[2024-09-25 10:52:27,290 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 103 transitions. Word has length 60
[2024-09-25 10:52:27,291 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-25 10:52:27,291 INFO L474 AbstractCegarLoop]: Abstraction has 90 states and 103 transitions.
[2024-09-25 10:52:27,291 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 15 states have internal predecessors, (32), 7 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17)
[2024-09-25 10:52:27,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:52:27,291 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 103 transitions.
[2024-09-25 10:52:27,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2024-09-25 10:52:27,292 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-25 10:52:27,292 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 4, 4, 4, 3, 3, 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]
[2024-09-25 10:52:27,305 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-09-25 10:52:27,495 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 10:52:27,496 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 10:52:27,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:52:27,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1657370914, now seen corresponding path program 1 times
[2024-09-25 10:52:27,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 10:52:27,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252770113]
[2024-09-25 10:52:27,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:52:27,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 10:52:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-25 10:52:27,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [392567454]
[2024-09-25 10:52:27,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:52:27,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 10:52:27,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-25 10:52:27,523 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-25 10:52:27,526 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-09-25 10:52:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:27,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 19 conjuncts are in the unsatisfiable core
[2024-09-25 10:52:27,576 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-25 10:52:27,695 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2024-09-25 10:52:27,696 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-25 10:52:27,768 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked.
[2024-09-25 10:52:27,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 10:52:27,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252770113]
[2024-09-25 10:52:27,769 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-25 10:52:27,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392567454]
[2024-09-25 10:52:27,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392567454] provided 1 perfect and 1 imperfect interpolant sequences
[2024-09-25 10:52:27,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-09-25 10:52:27,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8
[2024-09-25 10:52:27,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627757352]
[2024-09-25 10:52:27,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-25 10:52:27,770 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-25 10:52:27,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 10:52:27,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-25 10:52:27,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-09-25 10:52:27,771 INFO L87 Difference]: Start difference. First operand 90 states and 103 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8)
[2024-09-25 10:52:27,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 10:52:27,881 INFO L93 Difference]: Finished difference Result 96 states and 108 transitions.
[2024-09-25 10:52:27,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-09-25 10:52:27,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68
[2024-09-25 10:52:27,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 10:52:27,882 INFO L225 Difference]: With dead ends: 96
[2024-09-25 10:52:27,882 INFO L226 Difference]: Without dead ends: 91
[2024-09-25 10:52:27,882 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 127 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72
[2024-09-25 10:52:27,883 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 4 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-25 10:52:27,883 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 117 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-25 10:52:27,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states.
[2024-09-25 10:52:27,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 89.
[2024-09-25 10:52:27,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 55 states have (on average 1.1090909090909091) internal successors, (61), 55 states have internal predecessors, (61), 20 states have call successors, (20), 15 states have call predecessors, (20), 13 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-09-25 10:52:27,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 99 transitions.
[2024-09-25 10:52:27,900 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 99 transitions. Word has length 68
[2024-09-25 10:52:27,900 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-25 10:52:27,900 INFO L474 AbstractCegarLoop]: Abstraction has 89 states and 99 transitions.
[2024-09-25 10:52:27,901 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8)
[2024-09-25 10:52:27,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:52:27,901 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 99 transitions.
[2024-09-25 10:52:27,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72
[2024-09-25 10:52:27,902 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-25 10:52:27,902 INFO L216 NwaCegarLoop]: trace histogram [8, 7, 7, 4, 4, 4, 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, 1, 1, 1]
[2024-09-25 10:52:27,914 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-09-25 10:52:28,102 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 10:52:28,103 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 10:52:28,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:52:28,104 INFO L85 PathProgramCache]: Analyzing trace with hash -335668690, now seen corresponding path program 1 times
[2024-09-25 10:52:28,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 10:52:28,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897528845]
[2024-09-25 10:52:28,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:52:28,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 10:52:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:28,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-25 10:52:28,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:28,257 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-25 10:52:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:28,258 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2024-09-25 10:52:28,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:28,261 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-09-25 10:52:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:28,263 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2024-09-25 10:52:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:28,264 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2024-09-25 10:52:28,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:28,266 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-09-25 10:52:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:28,267 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-09-25 10:52:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:28,270 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2024-09-25 10:52:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:28,272 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51
[2024-09-25 10:52:28,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:28,293 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56
[2024-09-25 10:52:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:28,301 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62
[2024-09-25 10:52:28,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:28,303 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked.
[2024-09-25 10:52:28,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 10:52:28,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897528845]
[2024-09-25 10:52:28,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897528845] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-25 10:52:28,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771444913]
[2024-09-25 10:52:28,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:52:28,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 10:52:28,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-25 10:52:28,305 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-25 10:52:28,306 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-09-25 10:52:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:52:28,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-09-25 10:52:28,343 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-25 10:52:28,397 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked.
[2024-09-25 10:52:28,397 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-25 10:52:28,477 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked.
[2024-09-25 10:52:28,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771444913] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-25 10:52:28,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-25 10:52:28,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 11
[2024-09-25 10:52:28,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804676957]
[2024-09-25 10:52:28,478 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-25 10:52:28,478 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-09-25 10:52:28,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 10:52:28,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-09-25 10:52:28,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2024-09-25 10:52:28,478 INFO L87 Difference]: Start difference. First operand 89 states and 99 transitions. Second operand has 11 states, 10 states have (on average 2.5) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13)
[2024-09-25 10:52:28,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 10:52:28,589 INFO L93 Difference]: Finished difference Result 96 states and 107 transitions.
[2024-09-25 10:52:28,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-09-25 10:52:28,590 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.5) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 71
[2024-09-25 10:52:28,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 10:52:28,590 INFO L225 Difference]: With dead ends: 96
[2024-09-25 10:52:28,590 INFO L226 Difference]: Without dead ends: 0
[2024-09-25 10:52:28,591 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 162 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156
[2024-09-25 10:52:28,591 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 8 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-25 10:52:28,591 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 202 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-25 10:52:28,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-09-25 10:52:28,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-09-25 10:52:28,592 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)
[2024-09-25 10:52:28,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-09-25 10:52:28,592 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 71
[2024-09-25 10:52:28,592 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-25 10:52:28,592 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-09-25 10:52:28,592 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.5) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13)
[2024-09-25 10:52:28,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:52:28,592 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-09-25 10:52:28,592 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-09-25 10:52:28,596 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-09-25 10:52:28,608 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-09-25 10:52:28,796 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2024-09-25 10:52:28,799 INFO L408 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-25 10:52:28,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-09-25 10:52:41,694 WARN L293 SmtUtils]: Spent 8.83s on a formula simplification. DAG size of input: 76 DAG size of output: 36 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter)
[2024-09-25 10:52:43,308 INFO L165 ceAbstractionStarter]: Computing trace abstraction results
[2024-09-25 10:52:43,325 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length
[2024-09-25 10:52:43,326 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length
[2024-09-25 10:52:43,326 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
[2024-09-25 10:52:43,326 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
[2024-09-25 10:52:43,327 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0
[2024-09-25 10:52:43,327 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0
[2024-09-25 10:52:43,327 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid
[2024-09-25 10:52:43,327 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid
[2024-09-25 10:52:43,327 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length
[2024-09-25 10:52:43,328 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length
[2024-09-25 10:52:43,328 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
[2024-09-25 10:52:43,328 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
[2024-09-25 10:52:43,328 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0
[2024-09-25 10:52:43,328 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0
[2024-09-25 10:52:43,328 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid
[2024-09-25 10:52:43,328 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid
[2024-09-25 10:52:43,329 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length
[2024-09-25 10:52:43,329 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length
[2024-09-25 10:52:43,329 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
[2024-09-25 10:52:43,329 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
[2024-09-25 10:52:43,329 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0
[2024-09-25 10:52:43,329 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0
[2024-09-25 10:52:43,329 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid
[2024-09-25 10:52:43,329 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid
[2024-09-25 10:52:43,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:52:43 BoogieIcfgContainer
[2024-09-25 10:52:43,330 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-09-25 10:52:43,331 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-09-25 10:52:43,331 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-09-25 10:52:43,331 INFO L274 PluginConnector]: Witness Printer initialized
[2024-09-25 10:52:43,331 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:52:17" (3/4) ...
[2024-09-25 10:52:43,333 INFO L139 WitnessPrinter]: Generating witness for correct program
[2024-09-25 10:52:43,393 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml
[2024-09-25 10:52:43,393 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-09-25 10:52:43,394 INFO L158 Benchmark]: Toolchain (without parser) took 26418.81ms. Allocated memory was 100.7MB in the beginning and 155.2MB in the end (delta: 54.5MB). Free memory was 71.7MB in the beginning and 91.0MB in the end (delta: -19.2MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB.
[2024-09-25 10:52:43,394 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 62.9MB. Free memory is still 31.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-25 10:52:43,394 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.61ms. Allocated memory is still 100.7MB. Free memory was 71.5MB in the beginning and 59.8MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-09-25 10:52:43,394 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.91ms. Allocated memory is still 100.7MB. Free memory was 59.8MB in the beginning and 58.8MB in the end (delta: 983.6kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-25 10:52:43,394 INFO L158 Benchmark]: Boogie Preprocessor took 46.22ms. Allocated memory is still 100.7MB. Free memory was 58.8MB in the beginning and 57.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-25 10:52:43,395 INFO L158 Benchmark]: RCFGBuilder took 328.08ms. Allocated memory is still 100.7MB. Free memory was 57.1MB in the beginning and 69.7MB in the end (delta: -12.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2024-09-25 10:52:43,395 INFO L158 Benchmark]: TraceAbstraction took 25726.45ms. Allocated memory was 100.7MB in the beginning and 155.2MB in the end (delta: 54.5MB). Free memory was 68.7MB in the beginning and 94.1MB in the end (delta: -25.4MB). Peak memory consumption was 81.9MB. Max. memory is 16.1GB.
[2024-09-25 10:52:43,395 INFO L158 Benchmark]: Witness Printer took 62.37ms. Allocated memory is still 155.2MB. Free memory was 94.1MB in the beginning and 91.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-25 10:52:43,397 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.16ms. Allocated memory is still 62.9MB. Free memory is still 31.6MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 230.61ms. Allocated memory is still 100.7MB. Free memory was 71.5MB in the beginning and 59.8MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 18.91ms. Allocated memory is still 100.7MB. Free memory was 59.8MB in the beginning and 58.8MB in the end (delta: 983.6kB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 46.22ms. Allocated memory is still 100.7MB. Free memory was 58.8MB in the beginning and 57.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 328.08ms. Allocated memory is still 100.7MB. Free memory was 57.1MB in the beginning and 69.7MB in the end (delta: -12.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
* TraceAbstraction took 25726.45ms. Allocated memory was 100.7MB in the beginning and 155.2MB in the end (delta: 54.5MB). Free memory was 68.7MB in the beginning and 94.1MB in the end (delta: -25.4MB). Peak memory consumption was 81.9MB. Max. memory is 16.1GB.
* Witness Printer took 62.37ms. Allocated memory is still 155.2MB. Free memory was 94.1MB in the beginning and 91.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #length
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #length
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#0
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#0
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #valid
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #valid
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #length
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #length
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#0
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#0
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #valid
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #valid
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #length
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #length
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#0
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#0
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #valid
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #valid
* 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: 13]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.1s, OverallIterations: 11, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 125 SdHoareTripleChecker+Valid, 4.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 99 mSDsluCounter, 1675 SdHoareTripleChecker+Invalid, 4.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1304 mSDsCounter, 125 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 997 IncrementalHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 125 mSolverCounterUnsat, 371 mSDtfsCounter, 997 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 829 GetRequests, 734 SyntacticMatches, 4 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=8, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 60 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 1016 NumberOfCodeBlocks, 1016 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 909 ConstructedInterpolants, 0 QuantifiedInterpolants, 2752 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1156 ConjunctsInSsa, 154 ConjunctsInUnsatCore, 17 InterpolantComputations, 8 PerfectInterpolantSequences, 1091/1171 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
1 specifications checked. All of them hold
- InvariantResult [Line: 35]: Loop Invariant
Derived loop invariant: (((((b == (((__int128) q * x) + ((__int128) y * s))) && (1 <= x)) && (a == (((__int128) y * r) + ((__int128) p * x)))) && (1 <= y)) && (((__int128) p * s) == (((__int128) q * r) + 1)))
- ProcedureContractResult [Line: 7]: Procedure Contract for assume_abort_if_not
Derived contract for procedure assume_abort_if_not. Ensures: (cond != 0)
- ProcedureContractResult [Line: 10]: Procedure Contract for __VERIFIER_assert
Derived contract for procedure __VERIFIER_assert. Requires: (1 <= cond) Ensures: (1 <= cond)
RESULT: Ultimate proved your program to be correct!
[2024-09-25 10:52:43,424 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE