./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound5.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 7e1ff0e6
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound5.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 34f640e37bae156029b1a359a4abe58394472212f3f36aea9107706542ec544a
--- Real Ultimate output ---
This is Ultimate 0.2.2-?-7e1ff0e
[2023-02-15 00:34:46,273 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2023-02-15 00:34:46,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2023-02-15 00:34:46,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2023-02-15 00:34:46,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-02-15 00:34:46,301 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-02-15 00:34:46,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-02-15 00:34:46,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2023-02-15 00:34:46,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-02-15 00:34:46,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-02-15 00:34:46,306 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2023-02-15 00:34:46,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-02-15 00:34:46,308 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-02-15 00:34:46,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-02-15 00:34:46,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-02-15 00:34:46,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-02-15 00:34:46,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-02-15 00:34:46,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-02-15 00:34:46,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-02-15 00:34:46,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2023-02-15 00:34:46,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-02-15 00:34:46,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-02-15 00:34:46,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2023-02-15 00:34:46,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-02-15 00:34:46,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2023-02-15 00:34:46,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2023-02-15 00:34:46,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2023-02-15 00:34:46,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2023-02-15 00:34:46,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2023-02-15 00:34:46,323 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-02-15 00:34:46,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-02-15 00:34:46,324 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-02-15 00:34:46,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-02-15 00:34:46,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2023-02-15 00:34:46,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-02-15 00:34:46,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2023-02-15 00:34:46,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2023-02-15 00:34:46,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2023-02-15 00:34:46,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2023-02-15 00:34:46,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2023-02-15 00:34:46,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2023-02-15 00:34:46,330 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-02-15 00:34:46,356 INFO L113 SettingsManager]: Loading preferences was successful
[2023-02-15 00:34:46,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2023-02-15 00:34:46,357 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-02-15 00:34:46,357 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-02-15 00:34:46,362 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-02-15 00:34:46,362 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-02-15 00:34:46,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-02-15 00:34:46,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2023-02-15 00:34:46,363 INFO L138 SettingsManager]: * Use SBE=true
[2023-02-15 00:34:46,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-02-15 00:34:46,363 INFO L138 SettingsManager]: * sizeof long=4
[2023-02-15 00:34:46,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2023-02-15 00:34:46,363 INFO L138 SettingsManager]: * sizeof POINTER=4
[2023-02-15 00:34:46,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2023-02-15 00:34:46,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-02-15 00:34:46,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-02-15 00:34:46,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-02-15 00:34:46,364 INFO L138 SettingsManager]: * sizeof long double=12
[2023-02-15 00:34:46,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2023-02-15 00:34:46,365 INFO L138 SettingsManager]: * Use constant arrays=true
[2023-02-15 00:34:46,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-02-15 00:34:46,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-02-15 00:34:46,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-02-15 00:34:46,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2023-02-15 00:34:46,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-02-15 00:34:46,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-02-15 00:34:46,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-02-15 00:34:46,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-02-15 00:34:46,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-02-15 00:34:46,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-02-15 00:34:46,367 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-02-15 00:34:46,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-02-15 00:34:46,367 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-02-15 00:34:46,367 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-02-15 00:34:46,367 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-02-15 00:34:46,368 INFO L138 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/ultimate/releaseScripts/default/UAutomizer-linux/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34f640e37bae156029b1a359a4abe58394472212f3f36aea9107706542ec544a
[2023-02-15 00:34:46,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-02-15 00:34:46,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-02-15 00:34:46,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-02-15 00:34:46,603 INFO L271 PluginConnector]: Initializing CDTParser...
[2023-02-15 00:34:46,603 INFO L275 PluginConnector]: CDTParser initialized
[2023-02-15 00:34:46,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound5.c
[2023-02-15 00:34:47,820 INFO L500 CDTParser]: Created temporary CDT project at NULL
[2023-02-15 00:34:47,962 INFO L351 CDTParser]: Found 1 translation units.
[2023-02-15 00:34:47,963 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound5.c
[2023-02-15 00:34:47,968 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/345e6f8b1/33cf33c1d657478e823ed34e93a68ae3/FLAG4567d6bcc
[2023-02-15 00:34:47,984 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/345e6f8b1/33cf33c1d657478e823ed34e93a68ae3
[2023-02-15 00:34:47,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-02-15 00:34:47,989 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-02-15 00:34:47,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-02-15 00:34:47,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-02-15 00:34:47,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-02-15 00:34:47,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:34:47" (1/1) ...
[2023-02-15 00:34:47,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed037ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:34:47, skipping insertion in model container
[2023-02-15 00:34:47,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:34:47" (1/1) ...
[2023-02-15 00:34:48,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2023-02-15 00:34:48,018 INFO L178 MainTranslator]: Built tables and reachable declarations
[2023-02-15 00:34:48,124 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound5.c[537,550]
[2023-02-15 00:34:48,138 INFO L210 PostProcessor]: Analyzing one entry point: main
[2023-02-15 00:34:48,145 INFO L203 MainTranslator]: Completed pre-run
[2023-02-15 00:34:48,155 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound5.c[537,550]
[2023-02-15 00:34:48,160 INFO L210 PostProcessor]: Analyzing one entry point: main
[2023-02-15 00:34:48,171 INFO L208 MainTranslator]: Completed translation
[2023-02-15 00:34:48,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:34:48 WrapperNode
[2023-02-15 00:34:48,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-02-15 00:34:48,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-02-15 00:34:48,172 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-02-15 00:34:48,173 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2023-02-15 00:34:48,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:34:48" (1/1) ...
[2023-02-15 00:34:48,184 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:34:48" (1/1) ...
[2023-02-15 00:34:48,196 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42
[2023-02-15 00:34:48,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-02-15 00:34:48,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-02-15 00:34:48,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2023-02-15 00:34:48,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2023-02-15 00:34:48,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:34:48" (1/1) ...
[2023-02-15 00:34:48,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:34:48" (1/1) ...
[2023-02-15 00:34:48,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:34:48" (1/1) ...
[2023-02-15 00:34:48,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:34:48" (1/1) ...
[2023-02-15 00:34:48,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:34:48" (1/1) ...
[2023-02-15 00:34:48,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:34:48" (1/1) ...
[2023-02-15 00:34:48,210 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:34:48" (1/1) ...
[2023-02-15 00:34:48,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:34:48" (1/1) ...
[2023-02-15 00:34:48,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-02-15 00:34:48,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-02-15 00:34:48,213 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2023-02-15 00:34:48,213 INFO L275 PluginConnector]: RCFGBuilder initialized
[2023-02-15 00:34:48,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:34:48" (1/1) ...
[2023-02-15 00:34:48,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-02-15 00:34:48,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-02-15 00:34:48,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-02-15 00:34:48,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-02-15 00:34:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-02-15 00:34:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-02-15 00:34:48,279 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-02-15 00:34:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-02-15 00:34:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-02-15 00:34:48,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-02-15 00:34:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2023-02-15 00:34:48,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2023-02-15 00:34:48,339 INFO L235 CfgBuilder]: Building ICFG
[2023-02-15 00:34:48,342 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-02-15 00:34:48,544 INFO L276 CfgBuilder]: Performing block encoding
[2023-02-15 00:34:48,561 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-02-15 00:34:48,561 INFO L300 CfgBuilder]: Removed 1 assume(true) statements.
[2023-02-15 00:34:48,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:34:48 BoogieIcfgContainer
[2023-02-15 00:34:48,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-02-15 00:34:48,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-02-15 00:34:48,566 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2023-02-15 00:34:48,568 INFO L275 PluginConnector]: TraceAbstraction initialized
[2023-02-15 00:34:48,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 12:34:47" (1/3) ...
[2023-02-15 00:34:48,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dfd40c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:34:48, skipping insertion in model container
[2023-02-15 00:34:48,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:34:48" (2/3) ...
[2023-02-15 00:34:48,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dfd40c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:34:48, skipping insertion in model container
[2023-02-15 00:34:48,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:34:48" (3/3) ...
[2023-02-15 00:34:48,571 INFO L112 eAbstractionObserver]: Analyzing ICFG prodbin-ll_valuebound5.c
[2023-02-15 00:34:48,622 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-02-15 00:34:48,622 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-02-15 00:34:48,659 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-02-15 00:34:48,664 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@1f47add8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-02-15 00:34:48,665 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-02-15 00:34:48,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2023-02-15 00:34:48,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2023-02-15 00:34:48,675 INFO L187 NwaCegarLoop]: Found error trace
[2023-02-15 00:34:48,675 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-02-15 00:34:48,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-02-15 00:34:48,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2023-02-15 00:34:48,681 INFO L85 PathProgramCache]: Analyzing trace with hash -861605892, now seen corresponding path program 1 times
[2023-02-15 00:34:48,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-02-15 00:34:48,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636359695]
[2023-02-15 00:34:48,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-02-15 00:34:48,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-02-15 00:34:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-02-15 00:34:48,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-02-15 00:34:48,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636359695]
[2023-02-15 00:34:48,806 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-02-15 00:34:48,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510603929]
[2023-02-15 00:34:48,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-02-15 00:34:48,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-02-15 00:34:48,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-02-15 00:34:48,809 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-02-15 00:34:48,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-02-15 00:34:48,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-02-15 00:34:48,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-02-15 00:34:48,871 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2023-02-15 00:34:48,893 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2023-02-15 00:34:48,894 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-02-15 00:34:48,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510603929] provided 1 perfect and 0 imperfect interpolant sequences
[2023-02-15 00:34:48,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-02-15 00:34:48,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-02-15 00:34:48,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999364510]
[2023-02-15 00:34:48,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-02-15 00:34:48,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-02-15 00:34:48,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-02-15 00:34:48,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-02-15 00:34:48,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-02-15 00:34:48,943 INFO L87 Difference]: Start difference. First operand has 27 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2023-02-15 00:34:48,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-02-15 00:34:48,965 INFO L93 Difference]: Finished difference Result 51 states and 71 transitions.
[2023-02-15 00:34:48,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-02-15 00:34:48,968 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24
[2023-02-15 00:34:48,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-02-15 00:34:48,978 INFO L225 Difference]: With dead ends: 51
[2023-02-15 00:34:48,978 INFO L226 Difference]: Without dead ends: 23
[2023-02-15 00:34:48,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-02-15 00:34:48,985 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-02-15 00:34:48,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-02-15 00:34:49,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2023-02-15 00:34:49,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23.
[2023-02-15 00:34:49,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2023-02-15 00:34:49,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions.
[2023-02-15 00:34:49,015 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 24
[2023-02-15 00:34:49,015 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-02-15 00:34:49,015 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions.
[2023-02-15 00:34:49,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2023-02-15 00:34:49,015 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions.
[2023-02-15 00:34:49,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2023-02-15 00:34:49,017 INFO L187 NwaCegarLoop]: Found error trace
[2023-02-15 00:34:49,017 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-02-15 00:34:49,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-02-15 00:34:49,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2023-02-15 00:34:49,221 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-02-15 00:34:49,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2023-02-15 00:34:49,222 INFO L85 PathProgramCache]: Analyzing trace with hash -2010313222, now seen corresponding path program 1 times
[2023-02-15 00:34:49,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-02-15 00:34:49,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841787458]
[2023-02-15 00:34:49,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-02-15 00:34:49,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-02-15 00:34:49,254 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-02-15 00:34:49,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [466196938]
[2023-02-15 00:34:49,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-02-15 00:34:49,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-02-15 00:34:49,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-02-15 00:34:49,256 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-02-15 00:34:49,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-02-15 00:34:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-02-15 00:34:49,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 14 conjunts are in the unsatisfiable core
[2023-02-15 00:34:49,320 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2023-02-15 00:34:49,379 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2023-02-15 00:34:49,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-02-15 00:34:49,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-02-15 00:34:49,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841787458]
[2023-02-15 00:34:49,380 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-02-15 00:34:49,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466196938]
[2023-02-15 00:34:49,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466196938] provided 1 perfect and 0 imperfect interpolant sequences
[2023-02-15 00:34:49,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-02-15 00:34:49,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-02-15 00:34:49,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655754691]
[2023-02-15 00:34:49,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-02-15 00:34:49,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-02-15 00:34:49,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-02-15 00:34:49,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-02-15 00:34:49,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-02-15 00:34:49,383 INFO L87 Difference]: Start difference. First operand 23 states and 27 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2023-02-15 00:34:49,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-02-15 00:34:49,444 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions.
[2023-02-15 00:34:49,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-02-15 00:34:49,445 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24
[2023-02-15 00:34:49,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-02-15 00:34:49,446 INFO L225 Difference]: With dead ends: 35
[2023-02-15 00:34:49,446 INFO L226 Difference]: Without dead ends: 33
[2023-02-15 00:34:49,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-02-15 00:34:49,447 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 8 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-02-15 00:34:49,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 71 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-02-15 00:34:49,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2023-02-15 00:34:49,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29.
[2023-02-15 00:34:49,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 21 states have internal predecessors, (22), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5)
[2023-02-15 00:34:49,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions.
[2023-02-15 00:34:49,467 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 24
[2023-02-15 00:34:49,468 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-02-15 00:34:49,469 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions.
[2023-02-15 00:34:49,469 INFO L496 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2023-02-15 00:34:49,469 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions.
[2023-02-15 00:34:49,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2023-02-15 00:34:49,471 INFO L187 NwaCegarLoop]: Found error trace
[2023-02-15 00:34:49,471 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-02-15 00:34:49,481 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-02-15 00:34:49,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2023-02-15 00:34:49,682 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-02-15 00:34:49,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2023-02-15 00:34:49,683 INFO L85 PathProgramCache]: Analyzing trace with hash -895979555, now seen corresponding path program 1 times
[2023-02-15 00:34:49,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-02-15 00:34:49,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448464136]
[2023-02-15 00:34:49,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-02-15 00:34:49,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-02-15 00:34:49,705 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-02-15 00:34:49,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1135508949]
[2023-02-15 00:34:49,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-02-15 00:34:49,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-02-15 00:34:49,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-02-15 00:34:49,710 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-02-15 00:34:49,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-02-15 00:34:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-02-15 00:34:49,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-02-15 00:34:49,777 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2023-02-15 00:34:49,861 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2023-02-15 00:34:49,862 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-02-15 00:34:49,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-02-15 00:34:49,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448464136]
[2023-02-15 00:34:49,862 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-02-15 00:34:49,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135508949]
[2023-02-15 00:34:49,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135508949] provided 1 perfect and 0 imperfect interpolant sequences
[2023-02-15 00:34:49,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-02-15 00:34:49,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-02-15 00:34:49,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143458336]
[2023-02-15 00:34:49,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-02-15 00:34:49,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-02-15 00:34:49,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-02-15 00:34:49,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-02-15 00:34:49,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-02-15 00:34:49,865 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4)
[2023-02-15 00:34:49,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-02-15 00:34:49,922 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions.
[2023-02-15 00:34:49,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-02-15 00:34:49,923 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 30
[2023-02-15 00:34:49,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-02-15 00:34:49,924 INFO L225 Difference]: With dead ends: 39
[2023-02-15 00:34:49,924 INFO L226 Difference]: Without dead ends: 32
[2023-02-15 00:34:49,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2023-02-15 00:34:49,925 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 15 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-02-15 00:34:49,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 69 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-02-15 00:34:49,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2023-02-15 00:34:49,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30.
[2023-02-15 00:34:49,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2023-02-15 00:34:49,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions.
[2023-02-15 00:34:49,931 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 30
[2023-02-15 00:34:49,931 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-02-15 00:34:49,932 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions.
[2023-02-15 00:34:49,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4)
[2023-02-15 00:34:49,932 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions.
[2023-02-15 00:34:49,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2023-02-15 00:34:49,933 INFO L187 NwaCegarLoop]: Found error trace
[2023-02-15 00:34:49,933 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-02-15 00:34:49,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-02-15 00:34:50,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-02-15 00:34:50,138 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-02-15 00:34:50,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2023-02-15 00:34:50,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1371702355, now seen corresponding path program 1 times
[2023-02-15 00:34:50,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-02-15 00:34:50,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569391149]
[2023-02-15 00:34:50,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-02-15 00:34:50,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-02-15 00:34:50,155 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-02-15 00:34:50,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [975994209]
[2023-02-15 00:34:50,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-02-15 00:34:50,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-02-15 00:34:50,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-02-15 00:34:50,158 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-02-15 00:34:50,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-02-15 00:34:50,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-02-15 00:34:50,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 24 conjunts are in the unsatisfiable core
[2023-02-15 00:34:50,210 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2023-02-15 00:34:50,384 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2023-02-15 00:34:50,384 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2023-02-15 00:34:56,198 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2023-02-15 00:34:56,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-02-15 00:34:56,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569391149]
[2023-02-15 00:34:56,199 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-02-15 00:34:56,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975994209]
[2023-02-15 00:34:56,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975994209] provided 1 perfect and 1 imperfect interpolant sequences
[2023-02-15 00:34:56,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-02-15 00:34:56,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13
[2023-02-15 00:34:56,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465033486]
[2023-02-15 00:34:56,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-02-15 00:34:56,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-02-15 00:34:56,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-02-15 00:34:56,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-02-15 00:34:56,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156
[2023-02-15 00:34:56,201 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2023-02-15 00:34:56,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-02-15 00:34:56,596 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions.
[2023-02-15 00:34:56,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2023-02-15 00:34:56,597 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33
[2023-02-15 00:34:56,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-02-15 00:34:56,598 INFO L225 Difference]: With dead ends: 43
[2023-02-15 00:34:56,598 INFO L226 Difference]: Without dead ends: 41
[2023-02-15 00:34:56,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210
[2023-02-15 00:34:56,599 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 11 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-02-15 00:34:56,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 79 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-02-15 00:34:56,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2023-02-15 00:34:56,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39.
[2023-02-15 00:34:56,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 28 states have internal predecessors, (32), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2023-02-15 00:34:56,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions.
[2023-02-15 00:34:56,615 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 33
[2023-02-15 00:34:56,615 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-02-15 00:34:56,616 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions.
[2023-02-15 00:34:56,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2023-02-15 00:34:56,616 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions.
[2023-02-15 00:34:56,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2023-02-15 00:34:56,617 INFO L187 NwaCegarLoop]: Found error trace
[2023-02-15 00:34:56,617 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-02-15 00:34:56,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-02-15 00:34:56,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-02-15 00:34:56,825 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-02-15 00:34:56,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2023-02-15 00:34:56,825 INFO L85 PathProgramCache]: Analyzing trace with hash 403305007, now seen corresponding path program 1 times
[2023-02-15 00:34:56,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-02-15 00:34:56,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872058513]
[2023-02-15 00:34:56,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-02-15 00:34:56,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-02-15 00:34:56,846 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-02-15 00:34:56,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [176574511]
[2023-02-15 00:34:56,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-02-15 00:34:56,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-02-15 00:34:56,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-02-15 00:34:56,848 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-02-15 00:34:56,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-02-15 00:34:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-02-15 00:34:56,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 24 conjunts are in the unsatisfiable core
[2023-02-15 00:34:56,890 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2023-02-15 00:34:57,089 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2023-02-15 00:34:57,089 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2023-02-15 00:34:57,655 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2023-02-15 00:34:57,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-02-15 00:34:57,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872058513]
[2023-02-15 00:34:57,656 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-02-15 00:34:57,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176574511]
[2023-02-15 00:34:57,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176574511] provided 0 perfect and 2 imperfect interpolant sequences
[2023-02-15 00:34:57,657 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-02-15 00:34:57,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17
[2023-02-15 00:34:57,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225048189]
[2023-02-15 00:34:57,657 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-02-15 00:34:57,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2023-02-15 00:34:57,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-02-15 00:34:57,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2023-02-15 00:34:57,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272
[2023-02-15 00:34:57,659 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 13 states have internal predecessors, (31), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6)
[2023-02-15 00:34:58,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-02-15 00:34:58,600 INFO L93 Difference]: Finished difference Result 68 states and 83 transitions.
[2023-02-15 00:34:58,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2023-02-15 00:34:58,600 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 13 states have internal predecessors, (31), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 33
[2023-02-15 00:34:58,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-02-15 00:34:58,602 INFO L225 Difference]: With dead ends: 68
[2023-02-15 00:34:58,602 INFO L226 Difference]: Without dead ends: 61
[2023-02-15 00:34:58,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506
[2023-02-15 00:34:58,603 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 27 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-02-15 00:34:58,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 120 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-02-15 00:34:58,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states.
[2023-02-15 00:34:58,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59.
[2023-02-15 00:34:58,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 43 states have (on average 1.255813953488372) internal successors, (54), 44 states have internal predecessors, (54), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2023-02-15 00:34:58,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 73 transitions.
[2023-02-15 00:34:58,616 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 73 transitions. Word has length 33
[2023-02-15 00:34:58,617 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-02-15 00:34:58,617 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 73 transitions.
[2023-02-15 00:34:58,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 13 states have internal predecessors, (31), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6)
[2023-02-15 00:34:58,617 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 73 transitions.
[2023-02-15 00:34:58,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40
[2023-02-15 00:34:58,618 INFO L187 NwaCegarLoop]: Found error trace
[2023-02-15 00:34:58,619 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-02-15 00:34:58,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2023-02-15 00:34:58,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-02-15 00:34:58,827 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-02-15 00:34:58,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2023-02-15 00:34:58,828 INFO L85 PathProgramCache]: Analyzing trace with hash 685673296, now seen corresponding path program 1 times
[2023-02-15 00:34:58,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-02-15 00:34:58,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597817608]
[2023-02-15 00:34:58,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-02-15 00:34:58,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-02-15 00:34:58,838 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-02-15 00:34:58,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1482844758]
[2023-02-15 00:34:58,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-02-15 00:34:58,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-02-15 00:34:58,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-02-15 00:34:58,840 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-02-15 00:34:58,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-02-15 00:34:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-02-15 00:34:58,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 14 conjunts are in the unsatisfiable core
[2023-02-15 00:34:58,890 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2023-02-15 00:34:58,957 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2023-02-15 00:34:58,957 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2023-02-15 00:34:59,051 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2023-02-15 00:34:59,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-02-15 00:34:59,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597817608]
[2023-02-15 00:34:59,054 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-02-15 00:34:59,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482844758]
[2023-02-15 00:34:59,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482844758] provided 0 perfect and 2 imperfect interpolant sequences
[2023-02-15 00:34:59,054 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-02-15 00:34:59,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11
[2023-02-15 00:34:59,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388522707]
[2023-02-15 00:34:59,055 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-02-15 00:34:59,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2023-02-15 00:34:59,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-02-15 00:34:59,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2023-02-15 00:34:59,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110
[2023-02-15 00:34:59,057 INFO L87 Difference]: Start difference. First operand 59 states and 73 transitions. Second operand has 11 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6)
[2023-02-15 00:34:59,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-02-15 00:34:59,178 INFO L93 Difference]: Finished difference Result 67 states and 80 transitions.
[2023-02-15 00:34:59,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2023-02-15 00:34:59,178 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 39
[2023-02-15 00:34:59,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-02-15 00:34:59,179 INFO L225 Difference]: With dead ends: 67
[2023-02-15 00:34:59,179 INFO L226 Difference]: Without dead ends: 60
[2023-02-15 00:34:59,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156
[2023-02-15 00:34:59,181 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 13 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-02-15 00:34:59,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 111 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-02-15 00:34:59,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states.
[2023-02-15 00:34:59,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58.
[2023-02-15 00:34:59,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 43 states have internal predecessors, (50), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2023-02-15 00:34:59,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 68 transitions.
[2023-02-15 00:34:59,191 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 68 transitions. Word has length 39
[2023-02-15 00:34:59,191 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-02-15 00:34:59,192 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 68 transitions.
[2023-02-15 00:34:59,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6)
[2023-02-15 00:34:59,192 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 68 transitions.
[2023-02-15 00:34:59,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43
[2023-02-15 00:34:59,193 INFO L187 NwaCegarLoop]: Found error trace
[2023-02-15 00:34:59,193 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-02-15 00:34:59,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2023-02-15 00:34:59,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-02-15 00:34:59,408 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-02-15 00:34:59,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2023-02-15 00:34:59,408 INFO L85 PathProgramCache]: Analyzing trace with hash -662815268, now seen corresponding path program 1 times
[2023-02-15 00:34:59,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-02-15 00:34:59,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92605465]
[2023-02-15 00:34:59,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-02-15 00:34:59,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-02-15 00:34:59,435 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-02-15 00:34:59,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [621624642]
[2023-02-15 00:34:59,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-02-15 00:34:59,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-02-15 00:34:59,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-02-15 00:34:59,437 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-02-15 00:34:59,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2023-02-15 00:34:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-02-15 00:34:59,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 34 conjunts are in the unsatisfiable core
[2023-02-15 00:34:59,478 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2023-02-15 00:35:02,913 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2023-02-15 00:35:02,913 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2023-02-15 00:35:11,396 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2023-02-15 00:35:11,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-02-15 00:35:11,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92605465]
[2023-02-15 00:35:11,397 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-02-15 00:35:11,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621624642]
[2023-02-15 00:35:11,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621624642] provided 0 perfect and 2 imperfect interpolant sequences
[2023-02-15 00:35:11,397 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-02-15 00:35:11,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 19
[2023-02-15 00:35:11,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569936725]
[2023-02-15 00:35:11,398 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-02-15 00:35:11,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2023-02-15 00:35:11,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-02-15 00:35:11,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2023-02-15 00:35:11,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=277, Unknown=2, NotChecked=0, Total=342
[2023-02-15 00:35:11,400 INFO L87 Difference]: Start difference. First operand 58 states and 68 transitions. Second operand has 19 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 6 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7)
[2023-02-15 00:35:20,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2023-02-15 00:35:29,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2023-02-15 00:35:34,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-02-15 00:35:34,735 INFO L93 Difference]: Finished difference Result 103 states and 122 transitions.
[2023-02-15 00:35:34,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2023-02-15 00:35:34,735 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 6 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 42
[2023-02-15 00:35:34,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-02-15 00:35:34,738 INFO L225 Difference]: With dead ends: 103
[2023-02-15 00:35:34,738 INFO L226 Difference]: Without dead ends: 101
[2023-02-15 00:35:34,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 23.6s TimeCoverageRelationStatistics Valid=139, Invalid=561, Unknown=2, NotChecked=0, Total=702
[2023-02-15 00:35:34,739 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 27 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time
[2023-02-15 00:35:34,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 171 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 325 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time]
[2023-02-15 00:35:34,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states.
[2023-02-15 00:35:34,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101.
[2023-02-15 00:35:34,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 76 states have (on average 1.1578947368421053) internal successors, (88), 78 states have internal predecessors, (88), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16)
[2023-02-15 00:35:34,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 120 transitions.
[2023-02-15 00:35:34,759 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 120 transitions. Word has length 42
[2023-02-15 00:35:34,759 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-02-15 00:35:34,760 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 120 transitions.
[2023-02-15 00:35:34,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 6 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7)
[2023-02-15 00:35:34,760 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 120 transitions.
[2023-02-15 00:35:34,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2023-02-15 00:35:34,762 INFO L187 NwaCegarLoop]: Found error trace
[2023-02-15 00:35:34,762 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-02-15 00:35:34,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2023-02-15 00:35:34,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-02-15 00:35:34,968 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-02-15 00:35:34,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2023-02-15 00:35:34,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1448142086, now seen corresponding path program 2 times
[2023-02-15 00:35:34,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-02-15 00:35:34,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716941210]
[2023-02-15 00:35:34,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-02-15 00:35:34,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-02-15 00:35:34,977 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-02-15 00:35:34,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1875227416]
[2023-02-15 00:35:34,977 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-02-15 00:35:34,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-02-15 00:35:34,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-02-15 00:35:34,978 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-02-15 00:35:34,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2023-02-15 00:35:35,029 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2023-02-15 00:35:35,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-02-15 00:35:35,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 18 conjunts are in the unsatisfiable core
[2023-02-15 00:35:35,033 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2023-02-15 00:35:35,253 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2023-02-15 00:35:35,253 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2023-02-15 00:35:35,639 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked.
[2023-02-15 00:35:35,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-02-15 00:35:35,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716941210]
[2023-02-15 00:35:35,640 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-02-15 00:35:35,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875227416]
[2023-02-15 00:35:35,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875227416] provided 0 perfect and 2 imperfect interpolant sequences
[2023-02-15 00:35:35,640 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-02-15 00:35:35,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 16
[2023-02-15 00:35:35,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760902386]
[2023-02-15 00:35:35,640 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-02-15 00:35:35,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-02-15 00:35:35,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-02-15 00:35:35,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-02-15 00:35:35,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240
[2023-02-15 00:35:35,642 INFO L87 Difference]: Start difference. First operand 101 states and 120 transitions. Second operand has 16 states, 16 states have (on average 2.6875) internal successors, (43), 14 states have internal predecessors, (43), 9 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12)
[2023-02-15 00:35:35,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-02-15 00:35:35,943 INFO L93 Difference]: Finished difference Result 141 states and 163 transitions.
[2023-02-15 00:35:35,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2023-02-15 00:35:35,944 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 14 states have internal predecessors, (43), 9 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) Word has length 60
[2023-02-15 00:35:35,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-02-15 00:35:35,945 INFO L225 Difference]: With dead ends: 141
[2023-02-15 00:35:35,946 INFO L226 Difference]: Without dead ends: 80
[2023-02-15 00:35:35,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 101 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552
[2023-02-15 00:35:35,947 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 20 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-02-15 00:35:35,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 90 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-02-15 00:35:35,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states.
[2023-02-15 00:35:35,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78.
[2023-02-15 00:35:35,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 58 states have (on average 1.0344827586206897) internal successors, (60), 60 states have internal predecessors, (60), 13 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13)
[2023-02-15 00:35:35,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions.
[2023-02-15 00:35:35,961 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 60
[2023-02-15 00:35:35,961 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-02-15 00:35:35,961 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions.
[2023-02-15 00:35:35,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 14 states have internal predecessors, (43), 9 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12)
[2023-02-15 00:35:35,961 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions.
[2023-02-15 00:35:35,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2023-02-15 00:35:35,962 INFO L187 NwaCegarLoop]: Found error trace
[2023-02-15 00:35:35,963 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-02-15 00:35:35,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2023-02-15 00:35:36,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7
[2023-02-15 00:35:36,168 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-02-15 00:35:36,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2023-02-15 00:35:36,169 INFO L85 PathProgramCache]: Analyzing trace with hash 743390522, now seen corresponding path program 2 times
[2023-02-15 00:35:36,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-02-15 00:35:36,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128390765]
[2023-02-15 00:35:36,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-02-15 00:35:36,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-02-15 00:35:36,178 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-02-15 00:35:36,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1706417295]
[2023-02-15 00:35:36,179 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-02-15 00:35:36,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-02-15 00:35:36,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-02-15 00:35:36,180 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-02-15 00:35:36,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2023-02-15 00:35:36,220 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2023-02-15 00:35:36,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-02-15 00:35:36,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-02-15 00:35:36,223 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2023-02-15 00:35:36,560 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 56 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked.
[2023-02-15 00:35:36,560 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2023-02-15 00:35:36,961 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 46 proven. 3 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked.
[2023-02-15 00:35:36,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-02-15 00:35:36,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128390765]
[2023-02-15 00:35:36,961 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-02-15 00:35:36,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706417295]
[2023-02-15 00:35:36,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706417295] provided 0 perfect and 2 imperfect interpolant sequences
[2023-02-15 00:35:36,962 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-02-15 00:35:36,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2023-02-15 00:35:36,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696286812]
[2023-02-15 00:35:36,962 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-02-15 00:35:36,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2023-02-15 00:35:36,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-02-15 00:35:36,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2023-02-15 00:35:36,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342
[2023-02-15 00:35:36,963 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 17 states have internal predecessors, (47), 10 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13)
[2023-02-15 00:35:37,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-02-15 00:35:37,176 INFO L93 Difference]: Finished difference Result 86 states and 92 transitions.
[2023-02-15 00:35:37,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2023-02-15 00:35:37,177 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 17 states have internal predecessors, (47), 10 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) Word has length 60
[2023-02-15 00:35:37,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-02-15 00:35:37,177 INFO L225 Difference]: With dead ends: 86
[2023-02-15 00:35:37,177 INFO L226 Difference]: Without dead ends: 0
[2023-02-15 00:35:37,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650
[2023-02-15 00:35:37,179 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 14 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-02-15 00:35:37,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 90 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-02-15 00:35:37,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2023-02-15 00:35:37,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2023-02-15 00:35:37,180 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)
[2023-02-15 00:35:37,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2023-02-15 00:35:37,180 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60
[2023-02-15 00:35:37,180 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-02-15 00:35:37,180 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2023-02-15 00:35:37,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 17 states have internal predecessors, (47), 10 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13)
[2023-02-15 00:35:37,180 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2023-02-15 00:35:37,180 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2023-02-15 00:35:37,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-02-15 00:35:37,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2023-02-15 00:35:37,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-02-15 00:35:37,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2023-02-15 00:35:38,809 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2023-02-15 00:35:38,810 INFO L902 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: true
[2023-02-15 00:35:38,810 INFO L895 garLoopResultBuilder]: At program point L27-1(line 27) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 5))
[2023-02-15 00:35:38,810 INFO L902 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: true
[2023-02-15 00:35:38,810 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed.
[2023-02-15 00:35:38,810 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed.
[2023-02-15 00:35:38,810 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed.
[2023-02-15 00:35:38,810 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 20 49) the Hoare annotation is: true
[2023-02-15 00:35:38,810 INFO L895 garLoopResultBuilder]: At program point L34-2(lines 34 45) the Hoare annotation is: (let ((.cse3 (= |ULTIMATE.start_main_~x~0#1| (* 2 |ULTIMATE.start_main_~a~0#1|))) (.cse5 (= |ULTIMATE.start_main_~z~0#1| 0)) (.cse4 (* 2 |ULTIMATE.start_main_~y~0#1|)) (.cse0 (<= |ULTIMATE.start_main_~b~0#1| 5)) (.cse1 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse2 (= (+ |ULTIMATE.start_main_~z~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)))) (or (and (= (div (+ (- 1) |ULTIMATE.start_main_~b~0#1|) 2) |ULTIMATE.start_main_~y~0#1|) .cse0 .cse1 .cse2 .cse3) (and (= |ULTIMATE.start_main_~y~0#1| (div |ULTIMATE.start_main_~b~0#1| 2)) .cse3 (<= .cse4 5) .cse5 (<= 1 .cse4) (not (= (mod |ULTIMATE.start_main_~b~0#1| 2) 1))) (let ((.cse6 (+ |ULTIMATE.start_main_~y~0#1| 1))) (and (not (< .cse6 0)) (<= 1 (mod .cse6 2)) .cse0 .cse1 .cse2 (<= |ULTIMATE.start_main_~y~0#1| 1))) (and (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse0 .cse1 .cse5 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (and (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= .cse4 2) .cse0 .cse1 .cse2)))
[2023-02-15 00:35:38,810 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2023-02-15 00:35:38,810 INFO L895 garLoopResultBuilder]: At program point L34-3(lines 34 45) the Hoare annotation is: (let ((.cse0 (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|))) (and (<= 1 |ULTIMATE.start_main_~b~0#1|) (= |ULTIMATE.start_main_~z~0#1| .cse0) (or (not (<= 1 (mod |ULTIMATE.start_main_~y~0#1| 2))) (< |ULTIMATE.start_main_~y~0#1| 0) (= (+ (* 2 (* (div (+ (- 1) |ULTIMATE.start_main_~y~0#1|) 2) |ULTIMATE.start_main_~x~0#1|)) |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) .cse0))))
[2023-02-15 00:35:38,810 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2023-02-15 00:35:38,811 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed.
[2023-02-15 00:35:38,811 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 42) no Hoare annotation was computed.
[2023-02-15 00:35:38,811 INFO L899 garLoopResultBuilder]: For program point L39-2(lines 39 42) no Hoare annotation was computed.
[2023-02-15 00:35:38,811 INFO L895 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: (let ((.cse3 (= |ULTIMATE.start_main_~x~0#1| (* 2 |ULTIMATE.start_main_~a~0#1|))) (.cse5 (= |ULTIMATE.start_main_~z~0#1| 0)) (.cse4 (* 2 |ULTIMATE.start_main_~y~0#1|)) (.cse0 (<= |ULTIMATE.start_main_~b~0#1| 5)) (.cse1 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse2 (= (+ |ULTIMATE.start_main_~z~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)))) (or (and (= (div (+ (- 1) |ULTIMATE.start_main_~b~0#1|) 2) |ULTIMATE.start_main_~y~0#1|) .cse0 .cse1 .cse2 .cse3) (and (= |ULTIMATE.start_main_~y~0#1| (div |ULTIMATE.start_main_~b~0#1| 2)) .cse3 (<= .cse4 5) .cse5 (<= 1 .cse4) (not (= (mod |ULTIMATE.start_main_~b~0#1| 2) 1))) (let ((.cse6 (+ |ULTIMATE.start_main_~y~0#1| 1))) (and (not (< .cse6 0)) (<= 1 (mod .cse6 2)) .cse0 .cse1 .cse2 (<= |ULTIMATE.start_main_~y~0#1| 1))) (and (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse0 .cse1 .cse5 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (and (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= .cse4 2) .cse0 .cse1 .cse2)))
[2023-02-15 00:35:38,811 INFO L899 garLoopResultBuilder]: For program point L35-1(lines 34 45) no Hoare annotation was computed.
[2023-02-15 00:35:38,811 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed.
[2023-02-15 00:35:38,811 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 9 11) the Hoare annotation is: true
[2023-02-15 00:35:38,811 INFO L899 garLoopResultBuilder]: For program point L10-2(lines 9 11) no Hoare annotation was computed.
[2023-02-15 00:35:38,811 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 9 11) no Hoare annotation was computed.
[2023-02-15 00:35:38,811 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 15) no Hoare annotation was computed.
[2023-02-15 00:35:38,811 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 16) no Hoare annotation was computed.
[2023-02-15 00:35:38,811 INFO L899 garLoopResultBuilder]: For program point L13-2(lines 12 18) no Hoare annotation was computed.
[2023-02-15 00:35:38,811 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 12 18) no Hoare annotation was computed.
[2023-02-15 00:35:38,811 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 12 18) the Hoare annotation is: true
[2023-02-15 00:35:38,811 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed.
[2023-02-15 00:35:38,814 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1]
[2023-02-15 00:35:38,815 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-02-15 00:35:38,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 12:35:38 BoogieIcfgContainer
[2023-02-15 00:35:38,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-02-15 00:35:38,829 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-02-15 00:35:38,829 INFO L271 PluginConnector]: Initializing Witness Printer...
[2023-02-15 00:35:38,829 INFO L275 PluginConnector]: Witness Printer initialized
[2023-02-15 00:35:38,830 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:34:48" (3/4) ...
[2023-02-15 00:35:38,832 INFO L137 WitnessPrinter]: Generating witness for correct program
[2023-02-15 00:35:38,838 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not
[2023-02-15 00:35:38,838 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert
[2023-02-15 00:35:38,840 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges
[2023-02-15 00:35:38,841 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2023-02-15 00:35:38,841 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2023-02-15 00:35:38,841 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2023-02-15 00:35:38,867 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2023-02-15 00:35:38,867 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-02-15 00:35:38,868 INFO L158 Benchmark]: Toolchain (without parser) took 50878.72ms. Allocated memory was 111.1MB in the beginning and 136.3MB in the end (delta: 25.2MB). Free memory was 72.2MB in the beginning and 65.4MB in the end (delta: 6.7MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB.
[2023-02-15 00:35:38,868 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 111.1MB. Free memory was 82.8MB in the beginning and 82.7MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-02-15 00:35:38,868 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.95ms. Allocated memory is still 111.1MB. Free memory was 71.8MB in the beginning and 61.7MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-02-15 00:35:38,869 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.28ms. Allocated memory is still 111.1MB. Free memory was 61.7MB in the beginning and 60.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-02-15 00:35:38,869 INFO L158 Benchmark]: Boogie Preprocessor took 14.60ms. Allocated memory is still 111.1MB. Free memory was 60.3MB in the beginning and 58.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-02-15 00:35:38,869 INFO L158 Benchmark]: RCFGBuilder took 351.06ms. Allocated memory is still 111.1MB. Free memory was 58.9MB in the beginning and 48.1MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-02-15 00:35:38,870 INFO L158 Benchmark]: TraceAbstraction took 50262.78ms. Allocated memory was 111.1MB in the beginning and 136.3MB in the end (delta: 25.2MB). Free memory was 47.7MB in the beginning and 68.6MB in the end (delta: -20.9MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB.
[2023-02-15 00:35:38,870 INFO L158 Benchmark]: Witness Printer took 38.65ms. Allocated memory is still 136.3MB. Free memory was 68.6MB in the beginning and 65.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2023-02-15 00:35:38,871 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.19ms. Allocated memory is still 111.1MB. Free memory was 82.8MB in the beginning and 82.7MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 180.95ms. Allocated memory is still 111.1MB. Free memory was 71.8MB in the beginning and 61.7MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 24.28ms. Allocated memory is still 111.1MB. Free memory was 61.7MB in the beginning and 60.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 14.60ms. Allocated memory is still 111.1MB. Free memory was 60.3MB in the beginning and 58.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 351.06ms. Allocated memory is still 111.1MB. Free memory was 58.9MB in the beginning and 48.1MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 50262.78ms. Allocated memory was 111.1MB in the beginning and 136.3MB in the end (delta: 25.2MB). Free memory was 47.7MB in the beginning and 68.6MB in the end (delta: -20.9MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB.
* Witness Printer took 38.65ms. Allocated memory is still 136.3MB. Free memory was 68.6MB in the beginning and 65.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 15]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 50.2s, OverallIterations: 9, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 25.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 142 SdHoareTripleChecker+Valid, 9.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 135 mSDsluCounter, 832 SdHoareTripleChecker+Invalid, 9.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 639 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1114 IncrementalHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 193 mSDtfsCounter, 1114 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 636 GetRequests, 505 SyntacticMatches, 5 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 28.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=7, InterpolantAutomatonStates: 87, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 14 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 35 PreInvPairs, 55 NumberOfFragments, 309 HoareAnnotationTreeSize, 35 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 898 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 20.4s InterpolantComputationTime, 369 NumberOfCodeBlocks, 369 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 597 ConstructedInterpolants, 2 QuantifiedInterpolants, 3090 SizeOfPredicates, 32 NumberOfNonLiveVariables, 921 ConjunctsInSsa, 153 ConjunctsInUnsatCore, 15 InterpolantComputations, 4 PerfectInterpolantSequences, 500/534 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: 20]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 34]: Loop Invariant
Derived loop invariant: ((((((((-1 + b) / 2 == y && b <= 5) && 1 <= b) && z + x * y == a * b) && x == 2 * a) || (((((y == b / 2 && x == 2 * a) && 2 * y <= 5) && z == 0) && 1 <= 2 * y) && !(b % 2 == 1))) || (((((!(y + 1 < 0) && 1 <= (y + 1) % 2) && b <= 5) && 1 <= b) && z + x * y == a * b) && y <= 1)) || ((((b == y && b <= 5) && 1 <= b) && z == 0) && a == x)) || ((((1 <= y && 2 * y <= 2) && b <= 5) && 1 <= b) && z + x * y == a * b)
RESULT: Ultimate proved your program to be correct!
[2023-02-15 00:35:38,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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