/usr/bin/java -ea -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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_7-1.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-267fbe0
[2020-07-18 00:14:20,315 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-07-18 00:14:20,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-18 00:14:20,335 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-18 00:14:20,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-18 00:14:20,337 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-18 00:14:20,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-18 00:14:20,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-07-18 00:14:20,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-07-18 00:14:20,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-07-18 00:14:20,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-07-18 00:14:20,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-07-18 00:14:20,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-07-18 00:14:20,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-18 00:14:20,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-18 00:14:20,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-18 00:14:20,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-18 00:14:20,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-18 00:14:20,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-18 00:14:20,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-18 00:14:20,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-07-18 00:14:20,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-18 00:14:20,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-07-18 00:14:20,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-07-18 00:14:20,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2020-07-18 00:14:20,404 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf
[2020-07-18 00:14:20,425 INFO L113 SettingsManager]: Loading preferences was successful
[2020-07-18 00:14:20,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-18 00:14:20,431 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-18 00:14:20,431 INFO L138 SettingsManager]: * sizeof long=4
[2020-07-18 00:14:20,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-07-18 00:14:20,431 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-07-18 00:14:20,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-07-18 00:14:20,432 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-07-18 00:14:20,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-18 00:14:20,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-07-18 00:14:20,432 INFO L138 SettingsManager]: * sizeof long double=12
[2020-07-18 00:14:20,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-07-18 00:14:20,433 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-07-18 00:14:20,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-07-18 00:14:20,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-18 00:14:20,437 INFO L138 SettingsManager]: * Size of a code block=SingleStatement
[2020-07-18 00:14:20,437 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-07-18 00:14:20,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-07-18 00:14:20,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-18 00:14:20,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-18 00:14:20,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2020-07-18 00:14:20,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-18 00:14:20,438 INFO L138 SettingsManager]: * Use separate solver for trace checks=false
[2020-07-18 00:14:20,709 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-18 00:14:20,722 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-18 00:14:20,726 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-18 00:14:20,727 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-07-18 00:14:20,728 INFO L275 PluginConnector]: CDTParser initialized
[2020-07-18 00:14:20,729 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_7-1.c
[2020-07-18 00:14:20,807 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3ab96cf3/aeebce19bf5c4dd8817e3ccca5151b73/FLAGd8401e43e
[2020-07-18 00:14:21,264 INFO L306 CDTParser]: Found 1 translation units.
[2020-07-18 00:14:21,265 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/fibo_7-1.c
[2020-07-18 00:14:21,271 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3ab96cf3/aeebce19bf5c4dd8817e3ccca5151b73/FLAGd8401e43e
[2020-07-18 00:14:21,690 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3ab96cf3/aeebce19bf5c4dd8817e3ccca5151b73
[2020-07-18 00:14:21,701 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-18 00:14:21,705 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-18 00:14:21,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-18 00:14:21,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-18 00:14:21,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-18 00:14:21,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:14:21" (1/1) ...
[2020-07-18 00:14:21,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28d9b5f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:21, skipping insertion in model container
[2020-07-18 00:14:21,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:14:21" (1/1) ...
[2020-07-18 00:14:21,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-07-18 00:14:21,738 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-07-18 00:14:21,939 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-18 00:14:21,948 INFO L203 MainTranslator]: Completed pre-run
[2020-07-18 00:14:21,964 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-18 00:14:21,978 INFO L208 MainTranslator]: Completed translation
[2020-07-18 00:14:21,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:21 WrapperNode
[2020-07-18 00:14:21,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-18 00:14:21,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-18 00:14:21,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-18 00:14:21,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-07-18 00:14:21,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:21" (1/1) ...
[2020-07-18 00:14:21,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:21" (1/1) ...
[2020-07-18 00:14:21,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:21" (1/1) ...
[2020-07-18 00:14:21,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:21" (1/1) ...
[2020-07-18 00:14:22,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:21" (1/1) ...
[2020-07-18 00:14:22,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:21" (1/1) ...
[2020-07-18 00:14:22,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:21" (1/1) ...
[2020-07-18 00:14:22,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-18 00:14:22,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-18 00:14:22,010 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-07-18 00:14:22,010 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-07-18 00:14:22,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:21" (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
[2020-07-18 00:14:22,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-18 00:14:22,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-18 00:14:22,146 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo
[2020-07-18 00:14:22,146 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-07-18 00:14:22,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-07-18 00:14:22,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-18 00:14:22,146 INFO L130 BoogieDeclarations]: Found specification of procedure fibo
[2020-07-18 00:14:22,147 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-07-18 00:14:22,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-18 00:14:22,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-18 00:14:22,389 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-18 00:14:22,389 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-07-18 00:14:22,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:14:22 BoogieIcfgContainer
[2020-07-18 00:14:22,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-18 00:14:22,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-18 00:14:22,395 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-07-18 00:14:22,398 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-07-18 00:14:22,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:14:21" (1/3) ...
[2020-07-18 00:14:22,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153865f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:14:22, skipping insertion in model container
[2020-07-18 00:14:22,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:21" (2/3) ...
[2020-07-18 00:14:22,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153865f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:14:22, skipping insertion in model container
[2020-07-18 00:14:22,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:14:22" (3/3) ...
[2020-07-18 00:14:22,402 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_7-1.c
[2020-07-18 00:14:22,416 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-07-18 00:14:22,426 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-07-18 00:14:22,446 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-07-18 00:14:22,475 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-07-18 00:14:22,475 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-07-18 00:14:22,475 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation
[2020-07-18 00:14:22,476 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-18 00:14:22,476 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-18 00:14:22,476 INFO L380 AbstractCegarLoop]: Difference is false
[2020-07-18 00:14:22,476 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-18 00:14:22,477 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-18 00:14:22,495 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states.
[2020-07-18 00:14:22,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2020-07-18 00:14:22,505 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-18 00:14:22,506 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-18 00:14:22,507 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-18 00:14:22,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-18 00:14:22,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times
[2020-07-18 00:14:22,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-18 00:14:22,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [960884045]
[2020-07-18 00:14:22,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-07-18 00:14:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-18 00:14:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-18 00:14:22,727 INFO L280 TraceCheckUtils]: 0: Hoare triple {34#true} assume true; {34#true} is VALID
[2020-07-18 00:14:22,728 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {34#true} {34#true} #40#return; {34#true} is VALID
[2020-07-18 00:14:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-18 00:14:22,781 INFO L280 TraceCheckUtils]: 0: Hoare triple {34#true} ~n := #in~n; {44#(= fibo_~n |fibo_#in~n|)} is VALID
[2020-07-18 00:14:22,783 INFO L280 TraceCheckUtils]: 1: Hoare triple {44#(= fibo_~n |fibo_#in~n|)} assume ~n < 1; {45#(<= |fibo_#in~n| 0)} is VALID
[2020-07-18 00:14:22,784 INFO L280 TraceCheckUtils]: 2: Hoare triple {45#(<= |fibo_#in~n| 0)} #res := 0; {45#(<= |fibo_#in~n| 0)} is VALID
[2020-07-18 00:14:22,785 INFO L280 TraceCheckUtils]: 3: Hoare triple {45#(<= |fibo_#in~n| 0)} assume true; {45#(<= |fibo_#in~n| 0)} is VALID
[2020-07-18 00:14:22,788 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {45#(<= |fibo_#in~n| 0)} {38#(<= 7 main_~x~0)} #44#return; {35#false} is VALID
[2020-07-18 00:14:22,789 INFO L263 TraceCheckUtils]: 0: Hoare triple {34#true} call ULTIMATE.init(); {34#true} is VALID
[2020-07-18 00:14:22,789 INFO L280 TraceCheckUtils]: 1: Hoare triple {34#true} assume true; {34#true} is VALID
[2020-07-18 00:14:22,789 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {34#true} {34#true} #40#return; {34#true} is VALID
[2020-07-18 00:14:22,790 INFO L263 TraceCheckUtils]: 3: Hoare triple {34#true} call #t~ret3 := main(); {34#true} is VALID
[2020-07-18 00:14:22,791 INFO L280 TraceCheckUtils]: 4: Hoare triple {34#true} ~x~0 := 7; {38#(<= 7 main_~x~0)} is VALID
[2020-07-18 00:14:22,792 INFO L263 TraceCheckUtils]: 5: Hoare triple {38#(<= 7 main_~x~0)} call #t~ret2 := fibo(~x~0); {34#true} is VALID
[2020-07-18 00:14:22,793 INFO L280 TraceCheckUtils]: 6: Hoare triple {34#true} ~n := #in~n; {44#(= fibo_~n |fibo_#in~n|)} is VALID
[2020-07-18 00:14:22,795 INFO L280 TraceCheckUtils]: 7: Hoare triple {44#(= fibo_~n |fibo_#in~n|)} assume ~n < 1; {45#(<= |fibo_#in~n| 0)} is VALID
[2020-07-18 00:14:22,796 INFO L280 TraceCheckUtils]: 8: Hoare triple {45#(<= |fibo_#in~n| 0)} #res := 0; {45#(<= |fibo_#in~n| 0)} is VALID
[2020-07-18 00:14:22,797 INFO L280 TraceCheckUtils]: 9: Hoare triple {45#(<= |fibo_#in~n| 0)} assume true; {45#(<= |fibo_#in~n| 0)} is VALID
[2020-07-18 00:14:22,799 INFO L275 TraceCheckUtils]: 10: Hoare quadruple {45#(<= |fibo_#in~n| 0)} {38#(<= 7 main_~x~0)} #44#return; {35#false} is VALID
[2020-07-18 00:14:22,800 INFO L280 TraceCheckUtils]: 11: Hoare triple {35#false} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {35#false} is VALID
[2020-07-18 00:14:22,800 INFO L280 TraceCheckUtils]: 12: Hoare triple {35#false} ~result~0 := #t~ret2; {35#false} is VALID
[2020-07-18 00:14:22,801 INFO L280 TraceCheckUtils]: 13: Hoare triple {35#false} havoc #t~ret2; {35#false} is VALID
[2020-07-18 00:14:22,801 INFO L280 TraceCheckUtils]: 14: Hoare triple {35#false} assume 13 != ~result~0; {35#false} is VALID
[2020-07-18 00:14:22,802 INFO L280 TraceCheckUtils]: 15: Hoare triple {35#false} assume !false; {35#false} is VALID
[2020-07-18 00:14:22,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-18 00:14:22,945 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration
[2020-07-18 00:14:22,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [960884045]
[2020-07-18 00:14:22,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-18 00:14:22,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-07-18 00:14:22,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731791516]
[2020-07-18 00:14:22,957 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16
[2020-07-18 00:14:22,960 INFO L84 Accepts]: Finished accepts. word is accepted.
[2020-07-18 00:14:22,964 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states.
[2020-07-18 00:14:22,971 WARN L140 InductivityCheck]: Transition 49#(and (<= 0 (+ main_~result~0 2147483648)) (<= main_~result~0 2147483647) (not (= 13 main_~result~0)) (<= |fibo_#in~n| 0)) ( _ , assume !false; , 35#false ) not inductive
[2020-07-18 00:14:22,971 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-07-18 00:14:22,972 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception:
java.lang.AssertionError: inductivity failed
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.evaluateResult(InductivityCheck.java:142)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.checkInductivity(InductivityCheck.java:103)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.<init>(InductivityCheck.java:75)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.constructInterpolantAutomaton(BasicCegarLoop.java:583)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:455)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:127)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
[2020-07-18 00:14:22,978 INFO L168 Benchmark]: Toolchain (without parser) took 1273.13 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 104.6 MB in the beginning and 126.7 MB in the end (delta: -22.2 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB.
[2020-07-18 00:14:22,979 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 139.5 MB. Free memory is still 122.5 MB. There was no memory consumed. Max. memory is 7.1 GB.
[2020-07-18 00:14:22,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.70 ms. Allocated memory is still 139.5 MB. Free memory was 104.1 MB in the beginning and 94.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB.
[2020-07-18 00:14:22,981 INFO L168 Benchmark]: Boogie Preprocessor took 29.21 ms. Allocated memory is still 139.5 MB. Free memory was 94.7 MB in the beginning and 93.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
[2020-07-18 00:14:22,982 INFO L168 Benchmark]: RCFGBuilder took 384.14 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 93.4 MB in the beginning and 166.1 MB in the end (delta: -72.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB.
[2020-07-18 00:14:22,983 INFO L168 Benchmark]: TraceAbstraction took 580.27 ms. Allocated memory is still 203.9 MB. Free memory was 166.1 MB in the beginning and 127.7 MB in the end (delta: 38.4 MB). Peak memory consumption was 38.4 MB. Max. memory is 7.1 GB.
[2020-07-18 00:14:22,987 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- AssertionsEnabledResult: Assertions are enabled
Assertions are enabled
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.26 ms. Allocated memory is still 139.5 MB. Free memory is still 122.5 MB. There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 272.70 ms. Allocated memory is still 139.5 MB. Free memory was 104.1 MB in the beginning and 94.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 29.21 ms. Allocated memory is still 139.5 MB. Free memory was 94.7 MB in the beginning and 93.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 384.14 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 93.4 MB in the beginning and 166.1 MB in the end (delta: -72.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 580.27 ms. Allocated memory is still 203.9 MB. Free memory was 166.1 MB in the beginning and 127.7 MB in the end (delta: 38.4 MB). Peak memory consumption was 38.4 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: AssertionError: inductivity failed
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inductivity failed: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.evaluateResult(InductivityCheck.java:142)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...