java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/array-crafted/mapavg5.i
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This is Ultimate 0.1.24-f4eb214f-m
[2019-10-13 19:52:46,970 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2019-10-13 19:52:46,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2019-10-13 19:52:46,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-10-13 19:52:46,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-10-13 19:52:46,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-10-13 19:52:46,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-10-13 19:52:47,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2019-10-13 19:52:47,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-10-13 19:52:47,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-10-13 19:52:47,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2019-10-13 19:52:47,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-10-13 19:52:47,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-10-13 19:52:47,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-10-13 19:52:47,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-10-13 19:52:47,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-13 19:52:47,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-13 19:52:47,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-13 19:52:47,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-13 19:52:47,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-13 19:52:47,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-10-13 19:52:47,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-10-13 19:52:47,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2019-10-13 19:52:47,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-10-13 19:52:47,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2019-10-13 19:52:47,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2019-10-13 19:52:47,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2019-10-13 19:52:47,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2019-10-13 19:52:47,061 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-10-13 19:52:47,075 INFO L113 SettingsManager]: Loading preferences was successful
[2019-10-13 19:52:47,075 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-13 19:52:47,076 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-13 19:52:47,077 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2019-10-13 19:52:47,077 INFO L138 SettingsManager]: * Use SBE=true
[2019-10-13 19:52:47,077 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-13 19:52:47,077 INFO L138 SettingsManager]: * sizeof long=4
[2019-10-13 19:52:47,077 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2019-10-13 19:52:47,078 INFO L138 SettingsManager]: * sizeof POINTER=4
[2019-10-13 19:52:47,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2019-10-13 19:52:47,078 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2019-10-13 19:52:47,078 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-13 19:52:47,078 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2019-10-13 19:52:47,079 INFO L138 SettingsManager]: * sizeof long double=12
[2019-10-13 19:52:47,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2019-10-13 19:52:47,079 INFO L138 SettingsManager]: * Use constant arrays=true
[2019-10-13 19:52:47,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2019-10-13 19:52:47,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-13 19:52:47,080 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2019-10-13 19:52:47,080 INFO L138 SettingsManager]: * To the following directory=./dump/
[2019-10-13 19:52:47,080 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2019-10-13 19:52:47,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-13 19:52:47,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-13 19:52:47,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2019-10-13 19:52:47,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-13 19:52:47,081 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2019-10-13 19:52:47,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-13 19:52:47,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-13 19:52:47,082 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES
[2019-10-13 19:52:47,349 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-13 19:52:47,363 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-13 19:52:47,367 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-13 19:52:47,369 INFO L271 PluginConnector]: Initializing CDTParser...
[2019-10-13 19:52:47,369 INFO L275 PluginConnector]: CDTParser initialized
[2019-10-13 19:52:47,370 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-crafted/mapavg5.i
[2019-10-13 19:52:47,447 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc609525e/a715e60fa05940db8c16b348facb5c68/FLAG3c523953e
[2019-10-13 19:52:47,925 INFO L306 CDTParser]: Found 1 translation units.
[2019-10-13 19:52:47,927 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-crafted/mapavg5.i
[2019-10-13 19:52:47,934 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc609525e/a715e60fa05940db8c16b348facb5c68/FLAG3c523953e
[2019-10-13 19:52:48,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc609525e/a715e60fa05940db8c16b348facb5c68
[2019-10-13 19:52:48,309 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-13 19:52:48,311 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-13 19:52:48,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-13 19:52:48,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-13 19:52:48,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-13 19:52:48,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:52:48" (1/1) ...
[2019-10-13 19:52:48,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35da1448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:48, skipping insertion in model container
[2019-10-13 19:52:48,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:52:48" (1/1) ...
[2019-10-13 19:52:48,327 INFO L142 MainTranslator]: Starting translation in SV-COMP mode
[2019-10-13 19:52:48,347 INFO L173 MainTranslator]: Built tables and reachable declarations
[2019-10-13 19:52:48,508 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-13 19:52:48,518 INFO L188 MainTranslator]: Completed pre-run
[2019-10-13 19:52:48,538 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-13 19:52:48,552 INFO L192 MainTranslator]: Completed translation
[2019-10-13 19:52:48,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:48 WrapperNode
[2019-10-13 19:52:48,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-13 19:52:48,553 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-13 19:52:48,553 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-13 19:52:48,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2019-10-13 19:52:48,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:48" (1/1) ...
[2019-10-13 19:52:48,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:48" (1/1) ...
[2019-10-13 19:52:48,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:48" (1/1) ...
[2019-10-13 19:52:48,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:48" (1/1) ...
[2019-10-13 19:52:48,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:48" (1/1) ...
[2019-10-13 19:52:48,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:48" (1/1) ...
[2019-10-13 19:52:48,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:48" (1/1) ...
[2019-10-13 19:52:48,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-13 19:52:48,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-13 19:52:48,680 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2019-10-13 19:52:48,680 INFO L275 PluginConnector]: RCFGBuilder initialized
[2019-10-13 19:52:48,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:48" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-13 19:52:48,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-13 19:52:48,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-13 19:52:48,738 INFO L138 BoogieDeclarations]: Found implementation of procedure mapavg
[2019-10-13 19:52:48,738 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2019-10-13 19:52:48,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-13 19:52:48,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-10-13 19:52:48,738 INFO L130 BoogieDeclarations]: Found specification of procedure mapavg
[2019-10-13 19:52:48,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2019-10-13 19:52:48,738 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2019-10-13 19:52:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2019-10-13 19:52:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2019-10-13 19:52:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2019-10-13 19:52:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-13 19:52:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-13 19:52:49,060 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-13 19:52:49,060 INFO L284 CfgBuilder]: Removed 3 assume(true) statements.
[2019-10-13 19:52:49,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:52:49 BoogieIcfgContainer
[2019-10-13 19:52:49,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-13 19:52:49,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-13 19:52:49,063 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2019-10-13 19:52:49,067 INFO L275 PluginConnector]: TraceAbstraction initialized
[2019-10-13 19:52:49,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:52:48" (1/3) ...
[2019-10-13 19:52:49,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bba55b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:52:49, skipping insertion in model container
[2019-10-13 19:52:49,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:48" (2/3) ...
[2019-10-13 19:52:49,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bba55b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:52:49, skipping insertion in model container
[2019-10-13 19:52:49,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:52:49" (3/3) ...
[2019-10-13 19:52:49,071 INFO L109 eAbstractionObserver]: Analyzing ICFG mapavg5.i
[2019-10-13 19:52:49,082 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-13 19:52:49,090 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-10-13 19:52:49,101 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-10-13 19:52:49,128 INFO L373 AbstractCegarLoop]: Interprodecural is true
[2019-10-13 19:52:49,128 INFO L374 AbstractCegarLoop]: Hoare is true
[2019-10-13 19:52:49,128 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-13 19:52:49,128 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-13 19:52:49,128 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-13 19:52:49,129 INFO L378 AbstractCegarLoop]: Difference is false
[2019-10-13 19:52:49,129 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-13 19:52:49,129 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-13 19:52:49,157 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states.
[2019-10-13 19:52:49,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2019-10-13 19:52:49,165 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 19:52:49,167 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 19:52:49,169 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:52:49,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:52:49,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1453772458, now seen corresponding path program 1 times
[2019-10-13 19:52:49,187 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN
[2019-10-13 19:52:49,187 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766994123]
[2019-10-13 19:52:49,187 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:52:49,188 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:52:49,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:52:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:52:49,313 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766994123]
[2019-10-13 19:52:49,314 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2019-10-13 19:52:49,315 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865469345]
[2019-10-13 19:52:49,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 19:52:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:52:49,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 1 conjunts are in the unsatisfiable core
[2019-10-13 19:52:49,418 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2019-10-13 19:52:49,451 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2019-10-13 19:52:49,452 INFO L321 TraceCheckSpWp]: Computing backward predicates...
[2019-10-13 19:52:49,491 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2019-10-13 19:52:49,493 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:52:49,493 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2019-10-13 19:52:49,493 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006613215]
[2019-10-13 19:52:49,500 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states
[2019-10-13 19:52:49,502 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN
[2019-10-13 19:52:49,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2019-10-13 19:52:49,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2019-10-13 19:52:49,523 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states.
[2019-10-13 19:52:49,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:52:49,555 INFO L93 Difference]: Finished difference Result 57 states and 75 transitions.
[2019-10-13 19:52:49,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2019-10-13 19:52:49,557 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 33
[2019-10-13 19:52:49,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:52:49,567 INFO L225 Difference]: With dead ends: 57
[2019-10-13 19:52:49,567 INFO L226 Difference]: Without dead ends: 27
[2019-10-13 19:52:49,572 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2019-10-13 19:52:49,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states.
[2019-10-13 19:52:49,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27.
[2019-10-13 19:52:49,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states.
[2019-10-13 19:52:49,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions.
[2019-10-13 19:52:49,619 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 33
[2019-10-13 19:52:49,619 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:52:49,619 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions.
[2019-10-13 19:52:49,620 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2019-10-13 19:52:49,620 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions.
[2019-10-13 19:52:49,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2019-10-13 19:52:49,622 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 19:52:49,623 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 19:52:49,827 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 19:52:49,828 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:52:49,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:52:49,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1976009436, now seen corresponding path program 1 times
[2019-10-13 19:52:49,830 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN
[2019-10-13 19:52:49,831 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307633362]
[2019-10-13 19:52:49,831 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:52:49,831 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:52:49,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:52:49,857 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2019-10-13 19:52:49,858 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1230959760]
[2019-10-13 19:52:49,859 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 19:52:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:52:49,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 3 conjunts are in the unsatisfiable core
[2019-10-13 19:52:49,949 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2019-10-13 19:52:49,989 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2019-10-13 19:52:49,989 INFO L321 TraceCheckSpWp]: Computing backward predicates...
[2019-10-13 19:52:50,027 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2019-10-13 19:52:50,027 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307633362]
[2019-10-13 19:52:50,028 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2019-10-13 19:52:50,028 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230959760]
[2019-10-13 19:52:50,028 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:52:50,028 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2019-10-13 19:52:50,029 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138900699]
[2019-10-13 19:52:50,030 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 19:52:50,030 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN
[2019-10-13 19:52:50,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 19:52:50,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:52:50,031 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 4 states.
[2019-10-13 19:52:50,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:52:50,110 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions.
[2019-10-13 19:52:50,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2019-10-13 19:52:50,113 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33
[2019-10-13 19:52:50,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:52:50,114 INFO L225 Difference]: With dead ends: 48
[2019-10-13 19:52:50,115 INFO L226 Difference]: Without dead ends: 30
[2019-10-13 19:52:50,117 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:52:50,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2019-10-13 19:52:50,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30.
[2019-10-13 19:52:50,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states.
[2019-10-13 19:52:50,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions.
[2019-10-13 19:52:50,137 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 33
[2019-10-13 19:52:50,137 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:52:50,137 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions.
[2019-10-13 19:52:50,137 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-13 19:52:50,138 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions.
[2019-10-13 19:52:50,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2019-10-13 19:52:50,140 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 19:52:50,140 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 19:52:50,344 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 19:52:50,345 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:52:50,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:52:50,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1480690264, now seen corresponding path program 1 times
[2019-10-13 19:52:50,346 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN
[2019-10-13 19:52:50,346 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478566063]
[2019-10-13 19:52:50,346 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:52:50,346 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:52:50,347 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:52:50,372 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2019-10-13 19:52:50,372 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2133753085]
[2019-10-13 19:52:50,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 19:52:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:52:50,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 3 conjunts are in the unsatisfiable core
[2019-10-13 19:52:50,478 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2019-10-13 19:52:50,507 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2019-10-13 19:52:50,507 INFO L321 TraceCheckSpWp]: Computing backward predicates...
[2019-10-13 19:52:50,594 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2019-10-13 19:52:50,594 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478566063]
[2019-10-13 19:52:50,594 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2019-10-13 19:52:50,595 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133753085]
[2019-10-13 19:52:50,595 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2019-10-13 19:52:50,595 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7
[2019-10-13 19:52:50,596 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948871485]
[2019-10-13 19:52:50,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 19:52:50,597 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN
[2019-10-13 19:52:50,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 19:52:50,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2019-10-13 19:52:50,599 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 4 states.
[2019-10-13 19:52:50,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:52:50,668 INFO L93 Difference]: Finished difference Result 49 states and 59 transitions.
[2019-10-13 19:52:50,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2019-10-13 19:52:50,669 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37
[2019-10-13 19:52:50,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:52:50,671 INFO L225 Difference]: With dead ends: 49
[2019-10-13 19:52:50,672 INFO L226 Difference]: Without dead ends: 32
[2019-10-13 19:52:50,673 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 66 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2019-10-13 19:52:50,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2019-10-13 19:52:50,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31.
[2019-10-13 19:52:50,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states.
[2019-10-13 19:52:50,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions.
[2019-10-13 19:52:50,686 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 37
[2019-10-13 19:52:50,687 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:52:50,687 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions.
[2019-10-13 19:52:50,687 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-13 19:52:50,687 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions.
[2019-10-13 19:52:50,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2019-10-13 19:52:50,691 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 19:52:50,692 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 19:52:50,896 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 19:52:50,896 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:52:50,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:52:50,897 INFO L82 PathProgramCache]: Analyzing trace with hash -36652570, now seen corresponding path program 1 times
[2019-10-13 19:52:50,897 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN
[2019-10-13 19:52:50,898 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931374728]
[2019-10-13 19:52:50,898 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:52:50,898 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:52:50,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:52:50,941 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2019-10-13 19:52:50,941 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [185222875]
[2019-10-13 19:52:50,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 19:52:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:52:51,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 4 conjunts are in the unsatisfiable core
[2019-10-13 19:52:51,011 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2019-10-13 19:52:51,085 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2019-10-13 19:52:51,085 INFO L321 TraceCheckSpWp]: Computing backward predicates...
[2019-10-13 19:52:51,174 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked.
[2019-10-13 19:52:51,174 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931374728]
[2019-10-13 19:52:51,174 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2019-10-13 19:52:51,174 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185222875]
[2019-10-13 19:52:51,175 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [2105367507]
[2019-10-13 19:52:51,184 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 44
[2019-10-13 19:52:51,236 INFO L148 AbstractInterpreter]: Using domain IntervalDomain
[2019-10-13 19:52:51,237 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2)
[2019-10-13 19:52:51,308 INFO L266 AbstractInterpreter]: Error location(s) were unreachable
[2019-10-13 19:52:51,310 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Performed 21 root evaluator evaluations with a maximum evaluation depth of 2. Performed 21 inverse root evaluator evaluations with a maximum inverse evaluation depth of 2. Never found a fixpoint. Largest state had 31 variables.
[2019-10-13 19:52:51,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:52:51,313 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates
[2019-10-13 19:52:51,358 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 96.67% of their original sizes.
[2019-10-13 19:52:51,359 INFO L551 sIntCurrentIteration]: Unifying AI predicates
[2019-10-13 19:52:51,363 INFO L553 sIntCurrentIteration]: We unified 42 AI predicates to 42
[2019-10-13 19:52:51,364 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates
[2019-10-13 19:52:51,366 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences.
[2019-10-13 19:52:51,366 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 6] total 9
[2019-10-13 19:52:51,367 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486643510]
[2019-10-13 19:52:51,368 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-10-13 19:52:51,369 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN
[2019-10-13 19:52:51,369 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy
[2019-10-13 19:52:51,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-10-13 19:52:51,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-13 19:52:51,370 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 3 states.
[2019-10-13 19:52:51,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:52:51,377 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions.
[2019-10-13 19:52:51,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2019-10-13 19:52:51,377 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43
[2019-10-13 19:52:51,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:52:51,378 INFO L225 Difference]: With dead ends: 31
[2019-10-13 19:52:51,378 INFO L226 Difference]: Without dead ends: 0
[2019-10-13 19:52:51,379 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-13 19:52:51,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2019-10-13 19:52:51,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2019-10-13 19:52:51,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2019-10-13 19:52:51,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2019-10-13 19:52:51,380 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43
[2019-10-13 19:52:51,380 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:52:51,380 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2019-10-13 19:52:51,380 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-10-13 19:52:51,380 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2019-10-13 19:52:51,381 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2019-10-13 19:52:51,592 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 19:52:51,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2019-10-13 19:52:51,669 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed.
[2019-10-13 19:52:51,669 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true
[2019-10-13 19:52:51,670 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2019-10-13 19:52:51,670 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2019-10-13 19:52:51,670 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~N~0 2147483647) (<= 0 (+ ~N~0 2147483648)))
[2019-10-13 19:52:51,670 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2019-10-13 19:52:51,670 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2019-10-13 19:52:51,670 INFO L443 ceAbstractionStarter]: For program point L33(line 33) no Hoare annotation was computed.
[2019-10-13 19:52:51,671 INFO L443 ceAbstractionStarter]: For program point L29-2(lines 29 31) no Hoare annotation was computed.
[2019-10-13 19:52:51,671 INFO L439 ceAbstractionStarter]: At program point L29-3(lines 29 31) the Hoare annotation is: (or (not (<= |old(~N~0)| 2147483647)) (not (<= 0 (+ |old(~N~0)| 2147483648))))
[2019-10-13 19:52:51,671 INFO L439 ceAbstractionStarter]: At program point L29-4(lines 29 31) the Hoare annotation is: (or (not (<= |old(~N~0)| 2147483647)) (not (<= 0 (+ |old(~N~0)| 2147483648))))
[2019-10-13 19:52:51,671 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 45) no Hoare annotation was computed.
[2019-10-13 19:52:51,671 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 19 49) no Hoare annotation was computed.
[2019-10-13 19:52:51,672 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 19 49) no Hoare annotation was computed.
[2019-10-13 19:52:51,672 INFO L443 ceAbstractionStarter]: For program point L44(lines 44 46) no Hoare annotation was computed.
[2019-10-13 19:52:51,672 INFO L439 ceAbstractionStarter]: At program point L42(line 42) the Hoare annotation is: (or (not (<= |old(~N~0)| 2147483647)) (not (<= 0 (+ |old(~N~0)| 2147483648))))
[2019-10-13 19:52:51,672 INFO L443 ceAbstractionStarter]: For program point L44-2(lines 44 46) no Hoare annotation was computed.
[2019-10-13 19:52:51,672 INFO L443 ceAbstractionStarter]: For program point L42-1(line 42) no Hoare annotation was computed.
[2019-10-13 19:52:51,672 INFO L439 ceAbstractionStarter]: At program point L36(line 36) the Hoare annotation is: (or (not (<= |old(~N~0)| 2147483647)) (not (<= 0 (+ |old(~N~0)| 2147483648))))
[2019-10-13 19:52:51,672 INFO L443 ceAbstractionStarter]: For program point L38-2(lines 38 40) no Hoare annotation was computed.
[2019-10-13 19:52:51,673 INFO L443 ceAbstractionStarter]: For program point L36-1(line 36) no Hoare annotation was computed.
[2019-10-13 19:52:51,673 INFO L439 ceAbstractionStarter]: At program point L38-3(lines 38 40) the Hoare annotation is: (or (not (<= |old(~N~0)| 2147483647)) (not (<= 0 (+ |old(~N~0)| 2147483648))))
[2019-10-13 19:52:51,673 INFO L443 ceAbstractionStarter]: For program point L38-4(lines 38 40) no Hoare annotation was computed.
[2019-10-13 19:52:51,673 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 19 49) the Hoare annotation is: (or (not (<= |old(~N~0)| 2147483647)) (not (<= 0 (+ |old(~N~0)| 2147483648))) (and (<= ~N~0 2147483647) (<= 0 (+ ~N~0 2147483648))))
[2019-10-13 19:52:51,673 INFO L443 ceAbstractionStarter]: For program point L22(lines 22 47) no Hoare annotation was computed.
[2019-10-13 19:52:51,673 INFO L443 ceAbstractionStarter]: For program point L22-2(lines 22 47) no Hoare annotation was computed.
[2019-10-13 19:52:51,673 INFO L443 ceAbstractionStarter]: For program point L45(line 45) no Hoare annotation was computed.
[2019-10-13 19:52:51,674 INFO L443 ceAbstractionStarter]: For program point mapavgFINAL(lines 8 17) no Hoare annotation was computed.
[2019-10-13 19:52:51,674 INFO L446 ceAbstractionStarter]: At program point mapavgENTRY(lines 8 17) the Hoare annotation is: true
[2019-10-13 19:52:51,674 INFO L443 ceAbstractionStarter]: For program point mapavgEXIT(lines 8 17) no Hoare annotation was computed.
[2019-10-13 19:52:51,674 INFO L443 ceAbstractionStarter]: For program point L13-2(lines 13 15) no Hoare annotation was computed.
[2019-10-13 19:52:51,674 INFO L446 ceAbstractionStarter]: At program point L13-3(lines 13 15) the Hoare annotation is: true
[2019-10-13 19:52:51,674 INFO L443 ceAbstractionStarter]: For program point L13-4(lines 13 15) no Hoare annotation was computed.
[2019-10-13 19:52:51,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:52:51 BoogieIcfgContainer
[2019-10-13 19:52:51,691 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2019-10-13 19:52:51,700 INFO L168 Benchmark]: Toolchain (without parser) took 3382.49 ms. Allocated memory was 146.3 MB in the beginning and 235.4 MB in the end (delta: 89.1 MB). Free memory was 103.1 MB in the beginning and 130.0 MB in the end (delta: -26.9 MB). Peak memory consumption was 62.3 MB. Max. memory is 7.1 GB.
[2019-10-13 19:52:51,701 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 146.3 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2019-10-13 19:52:51,702 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.14 ms. Allocated memory is still 146.3 MB. Free memory was 102.9 MB in the beginning and 92.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB.
[2019-10-13 19:52:51,703 INFO L168 Benchmark]: Boogie Preprocessor took 126.20 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 92.4 MB in the beginning and 181.0 MB in the end (delta: -88.5 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB.
[2019-10-13 19:52:51,704 INFO L168 Benchmark]: RCFGBuilder took 381.80 ms. Allocated memory is still 203.4 MB. Free memory was 181.0 MB in the beginning and 164.0 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB.
[2019-10-13 19:52:51,705 INFO L168 Benchmark]: TraceAbstraction took 2628.94 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 164.0 MB in the beginning and 130.0 MB in the end (delta: 34.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 7.1 GB.
[2019-10-13 19:52:51,713 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.24 ms. Allocated memory is still 146.3 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 241.14 ms. Allocated memory is still 146.3 MB. Free memory was 102.9 MB in the beginning and 92.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 126.20 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 92.4 MB in the beginning and 181.0 MB in the end (delta: -88.5 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 381.80 ms. Allocated memory is still 203.4 MB. Free memory was 181.0 MB in the beginning and 164.0 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 2628.94 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 164.0 MB in the beginning and 130.0 MB in the end (delta: 34.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 45]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 38]: Loop Invariant
Derived loop invariant: !(\old(N) <= 2147483647) || !(0 <= \old(N) + 2147483648)
- InvariantResult [Line: 13]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 29]: Loop Invariant
Derived loop invariant: !(\old(N) <= 2147483647) || !(0 <= \old(N) + 2147483648)
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 33 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 95 SDtfs, 27 SDslu, 51 SDs, 0 SdLazy, 50 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 245 GetRequests, 235 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 31 PreInvPairs, 31 NumberOfFragments, 88 HoareAnnotationTreeSize, 31 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 284 ConstructedInterpolants, 0 QuantifiedInterpolants, 15080 SizeOfPredicates, 6 NumberOfNonLiveVariables, 583 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 140/166 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 130, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9682539682539684, AVG_VARS_REMOVED_DURING_WEAKENING: 1.2380952380952381, AVG_WEAKENED_CONJUNCTS: 0.38095238095238093, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...