/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_2calls_15-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:14:13,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:14:14,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:14:14,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:14:14,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:14:14,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:14:14,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:14:14,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:14:14,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:14:14,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:14:14,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:14:14,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:14:14,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:14:14,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:14:14,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:14:14,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:14:14,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:14:14,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:14:14,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:14:14,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:14:14,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:14:14,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:14:14,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:14:14,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:14:14,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 00:14:14,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:14:14,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:14:14,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:14:14,046 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 00:14:14,063 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:14:14,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:14:14,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:14:14,065 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:14:14,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:14:14,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:14:14,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:14:14,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:14:14,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:14:14,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:14:14,066 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:14:14,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:14:14,067 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:14:14,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:14:14,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:14:14,067 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:14:14,067 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:14:14,068 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:14:14,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:14:14,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:14:14,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:14:14,070 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:14:14,070 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:14:14,328 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:14:14,341 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:14:14,345 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:14:14,346 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:14:14,347 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:14:14,347 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_15-2.c [2020-07-18 00:14:14,419 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/778e62037/e0d16065de164dd1bdeaafd9470f174f/FLAGaae4bf88b [2020-07-18 00:14:14,864 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:14:14,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/fibo_2calls_15-2.c [2020-07-18 00:14:14,872 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/778e62037/e0d16065de164dd1bdeaafd9470f174f/FLAGaae4bf88b [2020-07-18 00:14:15,218 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/778e62037/e0d16065de164dd1bdeaafd9470f174f [2020-07-18 00:14:15,228 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:14:15,231 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:14:15,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:14:15,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:14:15,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:14:15,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:14:15" (1/1) ... [2020-07-18 00:14:15,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6377ca50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:15, skipping insertion in model container [2020-07-18 00:14:15,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:14:15" (1/1) ... [2020-07-18 00:14:15,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:14:15,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:14:15,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:14:15,449 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:14:15,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:14:15,482 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:14:15,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:15 WrapperNode [2020-07-18 00:14:15,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:14:15,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:14:15,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:14:15,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:14:15,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:15" (1/1) ... [2020-07-18 00:14:15,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:15" (1/1) ... [2020-07-18 00:14:15,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:15" (1/1) ... [2020-07-18 00:14:15,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:15" (1/1) ... [2020-07-18 00:14:15,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:15" (1/1) ... [2020-07-18 00:14:15,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:15" (1/1) ... [2020-07-18 00:14:15,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:15" (1/1) ... [2020-07-18 00:14:15,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:14:15,522 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:14:15,522 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:14:15,522 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:14:15,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:15" (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 00:14:15,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:14:15,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:14:15,660 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-07-18 00:14:15,660 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-07-18 00:14:15,661 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:14:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 00:14:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:14:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-07-18 00:14:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-07-18 00:14:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:14:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:14:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:14:16,011 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:14:16,011 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-18 00:14:16,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:14:16 BoogieIcfgContainer [2020-07-18 00:14:16,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:14:16,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:14:16,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:14:16,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:14:16,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:14:15" (1/3) ... [2020-07-18 00:14:16,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3924cde6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:14:16, skipping insertion in model container [2020-07-18 00:14:16,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:15" (2/3) ... [2020-07-18 00:14:16,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3924cde6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:14:16, skipping insertion in model container [2020-07-18 00:14:16,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:14:16" (3/3) ... [2020-07-18 00:14:16,022 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_15-2.c [2020-07-18 00:14:16,032 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:14:16,039 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:14:16,052 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:14:16,072 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:14:16,072 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:14:16,072 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:14:16,072 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:14:16,072 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:14:16,073 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:14:16,073 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:14:16,073 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:14:16,088 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-07-18 00:14:16,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-18 00:14:16,098 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:14:16,099 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:14:16,100 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:14:16,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:14:16,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-07-18 00:14:16,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:14:16,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [472884939] [2020-07-18 00:14:16,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:14:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:14:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:14:16,320 INFO L280 TraceCheckUtils]: 0: Hoare triple {48#true} assume true; {48#true} is VALID [2020-07-18 00:14:16,321 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {48#true} {48#true} #59#return; {48#true} is VALID [2020-07-18 00:14:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:14:16,382 INFO L280 TraceCheckUtils]: 0: Hoare triple {48#true} ~n := #in~n; {58#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-18 00:14:16,384 INFO L280 TraceCheckUtils]: 1: Hoare triple {58#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1; {59#(<= |fibo1_#in~n| 0)} is VALID [2020-07-18 00:14:16,385 INFO L280 TraceCheckUtils]: 2: Hoare triple {59#(<= |fibo1_#in~n| 0)} #res := 0; {59#(<= |fibo1_#in~n| 0)} is VALID [2020-07-18 00:14:16,386 INFO L280 TraceCheckUtils]: 3: Hoare triple {59#(<= |fibo1_#in~n| 0)} assume true; {59#(<= |fibo1_#in~n| 0)} is VALID [2020-07-18 00:14:16,389 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {59#(<= |fibo1_#in~n| 0)} {52#(<= 15 main_~x~0)} #63#return; {49#false} is VALID [2020-07-18 00:14:16,390 INFO L263 TraceCheckUtils]: 0: Hoare triple {48#true} call ULTIMATE.init(); {48#true} is VALID [2020-07-18 00:14:16,390 INFO L280 TraceCheckUtils]: 1: Hoare triple {48#true} assume true; {48#true} is VALID [2020-07-18 00:14:16,391 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {48#true} {48#true} #59#return; {48#true} is VALID [2020-07-18 00:14:16,391 INFO L263 TraceCheckUtils]: 3: Hoare triple {48#true} call #t~ret5 := main(); {48#true} is VALID [2020-07-18 00:14:16,392 INFO L280 TraceCheckUtils]: 4: Hoare triple {48#true} ~x~0 := 15; {52#(<= 15 main_~x~0)} is VALID [2020-07-18 00:14:16,393 INFO L263 TraceCheckUtils]: 5: Hoare triple {52#(<= 15 main_~x~0)} call #t~ret4 := fibo1(~x~0); {48#true} is VALID [2020-07-18 00:14:16,394 INFO L280 TraceCheckUtils]: 6: Hoare triple {48#true} ~n := #in~n; {58#(= fibo1_~n |fibo1_#in~n|)} is VALID [2020-07-18 00:14:16,396 INFO L280 TraceCheckUtils]: 7: Hoare triple {58#(= fibo1_~n |fibo1_#in~n|)} assume ~n < 1; {59#(<= |fibo1_#in~n| 0)} is VALID [2020-07-18 00:14:16,397 INFO L280 TraceCheckUtils]: 8: Hoare triple {59#(<= |fibo1_#in~n| 0)} #res := 0; {59#(<= |fibo1_#in~n| 0)} is VALID [2020-07-18 00:14:16,398 INFO L280 TraceCheckUtils]: 9: Hoare triple {59#(<= |fibo1_#in~n| 0)} assume true; {59#(<= |fibo1_#in~n| 0)} is VALID [2020-07-18 00:14:16,400 INFO L275 TraceCheckUtils]: 10: Hoare quadruple {59#(<= |fibo1_#in~n| 0)} {52#(<= 15 main_~x~0)} #63#return; {49#false} is VALID [2020-07-18 00:14:16,400 INFO L280 TraceCheckUtils]: 11: Hoare triple {49#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647; {49#false} is VALID [2020-07-18 00:14:16,401 INFO L280 TraceCheckUtils]: 12: Hoare triple {49#false} ~result~0 := #t~ret4; {49#false} is VALID [2020-07-18 00:14:16,401 INFO L280 TraceCheckUtils]: 13: Hoare triple {49#false} havoc #t~ret4; {49#false} is VALID [2020-07-18 00:14:16,401 INFO L280 TraceCheckUtils]: 14: Hoare triple {49#false} assume 610 != ~result~0; {49#false} is VALID [2020-07-18 00:14:16,402 INFO L280 TraceCheckUtils]: 15: Hoare triple {49#false} assume !false; {49#false} is VALID [2020-07-18 00:14:16,404 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 00:14:16,537 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:14:16,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [472884939] [2020-07-18 00:14:16,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:14:16,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-18 00:14:16,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335072131] [2020-07-18 00:14:16,549 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-07-18 00:14:16,552 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:14:16,556 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-18 00:14:16,633 WARN L140 InductivityCheck]: Transition 63#(and (<= main_~result~0 2147483647) (<= 0 (+ main_~result~0 2147483648)) (not (= 610 main_~result~0)) (<= |fibo1_#in~n| 0)) ( _ , assume !false; , 49#false ) not inductive [2020-07-18 00:14:16,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:14:16,634 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.(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.(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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-18 00:14:16,639 INFO L168 Benchmark]: Toolchain (without parser) took 1408.61 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 104.1 MB in the beginning and 117.5 MB in the end (delta: -13.5 MB). Peak memory consumption was 43.2 MB. Max. memory is 7.1 GB. [2020-07-18 00:14:16,640 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 145.2 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-18 00:14:16,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.05 ms. Allocated memory is still 145.2 MB. Free memory was 103.6 MB in the beginning and 93.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-18 00:14:16,642 INFO L168 Benchmark]: Boogie Preprocessor took 38.52 ms. Allocated memory is still 145.2 MB. Free memory was 93.9 MB in the beginning and 92.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2020-07-18 00:14:16,643 INFO L168 Benchmark]: RCFGBuilder took 492.79 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 92.3 MB in the beginning and 159.8 MB in the end (delta: -67.5 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-18 00:14:16,643 INFO L168 Benchmark]: TraceAbstraction took 620.68 ms. Allocated memory is still 201.9 MB. Free memory was 159.8 MB in the beginning and 118.2 MB in the end (delta: 41.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 7.1 GB. [2020-07-18 00:14:16,647 INFO L336 ainManager$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 0.25 ms. Allocated memory is still 145.2 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 247.05 ms. Allocated memory is still 145.2 MB. Free memory was 103.6 MB in the beginning and 93.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.52 ms. Allocated memory is still 145.2 MB. Free memory was 93.9 MB in the beginning and 92.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 492.79 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 92.3 MB in the beginning and 159.8 MB in the end (delta: -67.5 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 620.68 ms. Allocated memory is still 201.9 MB. Free memory was 159.8 MB in the beginning and 118.2 MB in the end (delta: 41.6 MB). Peak memory consumption was 41.6 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...