/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/sum_2x3-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:14:35,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:14:35,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:14:35,685 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:14:35,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:14:35,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:14:35,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:14:35,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:14:35,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:14:35,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:14:35,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:14:35,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:14:35,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:14:35,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:14:35,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:14:35,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:14:35,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:14:35,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:14:35,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:14:35,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:14:35,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:14:35,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:14:35,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:14:35,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:14:35,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 00:14:35,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:14:35,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:14:35,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:14:35,748 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 00:14:35,774 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:14:35,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:14:35,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:14:35,776 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:14:35,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:14:35,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:14:35,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:14:35,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:14:35,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:14:35,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:14:35,781 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:14:35,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:14:35,782 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:14:35,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:14:35,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:14:35,782 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:14:35,782 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:14:35,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:14:35,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:14:35,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:14:35,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:14:35,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:14:35,785 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:14:36,064 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:14:36,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:14:36,081 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:14:36,083 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:14:36,083 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:14:36,084 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_2x3-2.c [2020-07-18 00:14:36,161 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/805eb09fa/6a43d46cafd04eab9135841ca7549cb9/FLAGa60e0b669 [2020-07-18 00:14:36,657 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:14:36,657 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_2x3-2.c [2020-07-18 00:14:36,663 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/805eb09fa/6a43d46cafd04eab9135841ca7549cb9/FLAGa60e0b669 [2020-07-18 00:14:37,065 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/805eb09fa/6a43d46cafd04eab9135841ca7549cb9 [2020-07-18 00:14:37,077 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:14:37,080 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:14:37,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:14:37,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:14:37,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:14:37,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:14:37" (1/1) ... [2020-07-18 00:14:37,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3374a9eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:37, skipping insertion in model container [2020-07-18 00:14:37,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:14:37" (1/1) ... [2020-07-18 00:14:37,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:14:37,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:14:37,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:14:37,300 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:14:37,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:14:37,330 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:14:37,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:37 WrapperNode [2020-07-18 00:14:37,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:14:37,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:14:37,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:14:37,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:14:37,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:37" (1/1) ... [2020-07-18 00:14:37,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:37" (1/1) ... [2020-07-18 00:14:37,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:37" (1/1) ... [2020-07-18 00:14:37,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:37" (1/1) ... [2020-07-18 00:14:37,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:37" (1/1) ... [2020-07-18 00:14:37,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:37" (1/1) ... [2020-07-18 00:14:37,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:37" (1/1) ... [2020-07-18 00:14:37,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:14:37,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:14:37,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:14:37,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:14:37,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:37" (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 00:14:37,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:14:37,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:14:37,510 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-07-18 00:14:37,510 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:14:37,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:14:37,510 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-07-18 00:14:37,510 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:14:37,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:14:37,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:14:37,734 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:14:37,735 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-18 00:14:37,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:14:37 BoogieIcfgContainer [2020-07-18 00:14:37,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:14:37,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:14:37,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:14:37,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:14:37,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:14:37" (1/3) ... [2020-07-18 00:14:37,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea7e1f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:14:37, skipping insertion in model container [2020-07-18 00:14:37,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:37" (2/3) ... [2020-07-18 00:14:37,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea7e1f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:14:37, skipping insertion in model container [2020-07-18 00:14:37,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:14:37" (3/3) ... [2020-07-18 00:14:37,752 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_2x3-2.c [2020-07-18 00:14:37,769 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:14:37,776 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:14:37,793 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:14:37,822 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:14:37,823 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:14:37,823 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:14:37,823 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:14:37,823 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:14:37,826 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:14:37,826 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:14:37,827 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:14:37,843 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-07-18 00:14:37,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-18 00:14:37,855 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:14:37,856 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:14:37,857 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:14:37,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:14:37,863 INFO L82 PathProgramCache]: Analyzing trace with hash 989240825, now seen corresponding path program 1 times [2020-07-18 00:14:37,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:14:37,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132925183] [2020-07-18 00:14:37,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:14:37,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:14:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:14:38,108 INFO L280 TraceCheckUtils]: 0: Hoare triple {30#true} assume true; {30#true} is VALID [2020-07-18 00:14:38,109 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {30#true} {30#true} #33#return; {30#true} is VALID [2020-07-18 00:14:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:14:38,168 INFO L280 TraceCheckUtils]: 0: Hoare triple {30#true} ~n := #in~n; {41#(= sum_~n |sum_#in~n|)} is VALID [2020-07-18 00:14:38,169 INFO L280 TraceCheckUtils]: 1: Hoare triple {41#(= sum_~n |sum_#in~n|)} ~m := #in~m; {41#(= sum_~n |sum_#in~n|)} is VALID [2020-07-18 00:14:38,171 INFO L280 TraceCheckUtils]: 2: Hoare triple {41#(= sum_~n |sum_#in~n|)} assume ~n <= 0; {42#(<= |sum_#in~n| 0)} is VALID [2020-07-18 00:14:38,172 INFO L280 TraceCheckUtils]: 3: Hoare triple {42#(<= |sum_#in~n| 0)} #res := ~m + ~n; {42#(<= |sum_#in~n| 0)} is VALID [2020-07-18 00:14:38,173 INFO L280 TraceCheckUtils]: 4: Hoare triple {42#(<= |sum_#in~n| 0)} assume true; {42#(<= |sum_#in~n| 0)} is VALID [2020-07-18 00:14:38,176 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {42#(<= |sum_#in~n| 0)} {34#(<= 2 main_~a~0)} #39#return; {31#false} is VALID [2020-07-18 00:14:38,177 INFO L263 TraceCheckUtils]: 0: Hoare triple {30#true} call ULTIMATE.init(); {30#true} is VALID [2020-07-18 00:14:38,178 INFO L280 TraceCheckUtils]: 1: Hoare triple {30#true} assume true; {30#true} is VALID [2020-07-18 00:14:38,178 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {30#true} {30#true} #33#return; {30#true} is VALID [2020-07-18 00:14:38,179 INFO L263 TraceCheckUtils]: 3: Hoare triple {30#true} call #t~ret2 := main(); {30#true} is VALID [2020-07-18 00:14:38,181 INFO L280 TraceCheckUtils]: 4: Hoare triple {30#true} ~a~0 := 2; {34#(<= 2 main_~a~0)} is VALID [2020-07-18 00:14:38,182 INFO L280 TraceCheckUtils]: 5: Hoare triple {34#(<= 2 main_~a~0)} ~b~0 := 3; {34#(<= 2 main_~a~0)} is VALID [2020-07-18 00:14:38,183 INFO L263 TraceCheckUtils]: 6: Hoare triple {34#(<= 2 main_~a~0)} call #t~ret1 := sum(~a~0, ~b~0); {30#true} is VALID [2020-07-18 00:14:38,184 INFO L280 TraceCheckUtils]: 7: Hoare triple {30#true} ~n := #in~n; {41#(= sum_~n |sum_#in~n|)} is VALID [2020-07-18 00:14:38,185 INFO L280 TraceCheckUtils]: 8: Hoare triple {41#(= sum_~n |sum_#in~n|)} ~m := #in~m; {41#(= sum_~n |sum_#in~n|)} is VALID [2020-07-18 00:14:38,186 INFO L280 TraceCheckUtils]: 9: Hoare triple {41#(= sum_~n |sum_#in~n|)} assume ~n <= 0; {42#(<= |sum_#in~n| 0)} is VALID [2020-07-18 00:14:38,187 INFO L280 TraceCheckUtils]: 10: Hoare triple {42#(<= |sum_#in~n| 0)} #res := ~m + ~n; {42#(<= |sum_#in~n| 0)} is VALID [2020-07-18 00:14:38,188 INFO L280 TraceCheckUtils]: 11: Hoare triple {42#(<= |sum_#in~n| 0)} assume true; {42#(<= |sum_#in~n| 0)} is VALID [2020-07-18 00:14:38,191 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {42#(<= |sum_#in~n| 0)} {34#(<= 2 main_~a~0)} #39#return; {31#false} is VALID [2020-07-18 00:14:38,191 INFO L280 TraceCheckUtils]: 13: Hoare triple {31#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {31#false} is VALID [2020-07-18 00:14:38,192 INFO L280 TraceCheckUtils]: 14: Hoare triple {31#false} ~result~0 := #t~ret1; {31#false} is VALID [2020-07-18 00:14:38,192 INFO L280 TraceCheckUtils]: 15: Hoare triple {31#false} havoc #t~ret1; {31#false} is VALID [2020-07-18 00:14:38,193 INFO L280 TraceCheckUtils]: 16: Hoare triple {31#false} assume ~result~0 != ~a~0 + ~b~0; {31#false} is VALID [2020-07-18 00:14:38,193 INFO L280 TraceCheckUtils]: 17: Hoare triple {31#false} assume !false; {31#false} is VALID [2020-07-18 00:14:38,196 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 00:14:38,350 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:14:38,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2132925183] [2020-07-18 00:14:38,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:14:38,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-18 00:14:38,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025788006] [2020-07-18 00:14:38,363 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-07-18 00:14:38,367 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:14:38,371 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-18 00:14:38,407 WARN L140 InductivityCheck]: Transition 46#(and (not (= (+ main_~a~0 main_~b~0) main_~result~0)) (<= main_~result~0 2147483647) (<= 0 (+ main_~result~0 2147483648)) (<= |sum_#in~n| 0)) ( _ , assume !false; , 31#false ) not inductive [2020-07-18 00:14:38,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:14:38,409 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-18 00:14:38,415 INFO L168 Benchmark]: Toolchain (without parser) took 1335.58 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 102.7 MB in the beginning and 122.7 MB in the end (delta: -20.0 MB). Peak memory consumption was 38.2 MB. Max. memory is 7.1 GB. [2020-07-18 00:14:38,416 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-18 00:14:38,417 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.78 ms. Allocated memory is still 145.8 MB. Free memory was 102.3 MB in the beginning and 92.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-07-18 00:14:38,419 INFO L168 Benchmark]: Boogie Preprocessor took 117.79 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 92.9 MB in the beginning and 183.3 MB in the end (delta: -90.4 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-07-18 00:14:38,420 INFO L168 Benchmark]: RCFGBuilder took 292.09 ms. Allocated memory is still 203.9 MB. Free memory was 183.3 MB in the beginning and 166.8 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2020-07-18 00:14:38,421 INFO L168 Benchmark]: TraceAbstraction took 669.32 ms. Allocated memory is still 203.9 MB. Free memory was 166.2 MB in the beginning and 123.3 MB in the end (delta: 42.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 7.1 GB. [2020-07-18 00:14:38,425 INFO L336 ainManager$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 0.18 ms. Allocated memory is still 145.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 247.78 ms. Allocated memory is still 145.8 MB. Free memory was 102.3 MB in the beginning and 92.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.79 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 92.9 MB in the beginning and 183.3 MB in the end (delta: -90.4 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 292.09 ms. Allocated memory is still 203.9 MB. Free memory was 183.3 MB in the beginning and 166.8 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 669.32 ms. Allocated memory is still 203.9 MB. Free memory was 166.2 MB in the beginning and 123.3 MB in the end (delta: 42.9 MB). Peak memory consumption was 42.9 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...