/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 0.1.25-46f3038-m [2020-07-08 16:09:06,286 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 16:09:06,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 16:09:06,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 16:09:06,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 16:09:06,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 16:09:06,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 16:09:06,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 16:09:06,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 16:09:06,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 16:09:06,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 16:09:06,337 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 16:09:06,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 16:09:06,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 16:09:06,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 16:09:06,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 16:09:06,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 16:09:06,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 16:09:06,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 16:09:06,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 16:09:06,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 16:09:06,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 16:09:06,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 16:09:06,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 16:09:06,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-08 16:09:06,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-08 16:09:06,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-08 16:09:06,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-08 16:09:06,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-08 16:09:06,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-08 16:09:06,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 16:09:06,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 16:09:06,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 16:09:06,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 16:09:06,374 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 16:09:06,374 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 16:09:06,375 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 16:09:06,375 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 16:09:06,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 16:09:06,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 16:09:06,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 16:09:06,379 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 16:09:06,404 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 16:09:06,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 16:09:06,409 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 16:09:06,410 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 16:09:06,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 16:09:06,410 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 16:09:06,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 16:09:06,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 16:09:06,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 16:09:06,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 16:09:06,411 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 16:09:06,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 16:09:06,411 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 16:09:06,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 16:09:06,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 16:09:06,412 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 16:09:06,415 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 16:09:06,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 16:09:06,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 16:09:06,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 16:09:06,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 16:09:06,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 16:09:06,416 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-08 16:09:06,740 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 16:09:06,753 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 16:09:06,757 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 16:09:06,759 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 16:09:06,759 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 16:09:06,760 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_2x3-2.c [2020-07-08 16:09:06,835 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0641d3e34/7118d38d004648e4b677da92efd2416f/FLAG5dcb16173 [2020-07-08 16:09:07,283 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 16:09:07,284 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_2x3-2.c [2020-07-08 16:09:07,290 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0641d3e34/7118d38d004648e4b677da92efd2416f/FLAG5dcb16173 [2020-07-08 16:09:07,660 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0641d3e34/7118d38d004648e4b677da92efd2416f [2020-07-08 16:09:07,669 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 16:09:07,671 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 16:09:07,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 16:09:07,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 16:09:07,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 16:09:07,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:09:07" (1/1) ... [2020-07-08 16:09:07,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240e72d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:09:07, skipping insertion in model container [2020-07-08 16:09:07,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:09:07" (1/1) ... [2020-07-08 16:09:07,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 16:09:07,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 16:09:07,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:09:07,868 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 16:09:07,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:09:07,899 INFO L208 MainTranslator]: Completed translation [2020-07-08 16:09:07,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:09:07 WrapperNode [2020-07-08 16:09:07,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 16:09:07,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 16:09:07,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 16:09:07,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 16:09:07,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:09:07" (1/1) ... [2020-07-08 16:09:07,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:09:07" (1/1) ... [2020-07-08 16:09:07,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:09:07" (1/1) ... [2020-07-08 16:09:07,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:09:07" (1/1) ... [2020-07-08 16:09:07,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:09:07" (1/1) ... [2020-07-08 16:09:07,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:09:07" (1/1) ... [2020-07-08 16:09:07,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:09:07" (1/1) ... [2020-07-08 16:09:07,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 16:09:07,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 16:09:07,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 16:09:07,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 16:09:07,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:09:07" (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 [2020-07-08 16:09:08,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 16:09:08,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 16:09:08,064 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-07-08 16:09:08,064 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 16:09:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 16:09:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-07-08 16:09:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 16:09:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 16:09:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 16:09:08,303 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 16:09:08,304 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-08 16:09:08,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:09:08 BoogieIcfgContainer [2020-07-08 16:09:08,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 16:09:08,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 16:09:08,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 16:09:08,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 16:09:08,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 04:09:07" (1/3) ... [2020-07-08 16:09:08,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43b1d50c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:09:08, skipping insertion in model container [2020-07-08 16:09:08,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:09:07" (2/3) ... [2020-07-08 16:09:08,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43b1d50c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:09:08, skipping insertion in model container [2020-07-08 16:09:08,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:09:08" (3/3) ... [2020-07-08 16:09:08,319 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_2x3-2.c [2020-07-08 16:09:08,336 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 16:09:08,346 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 16:09:08,363 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 16:09:08,388 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 16:09:08,388 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 16:09:08,388 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-08 16:09:08,388 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 16:09:08,388 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 16:09:08,388 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 16:09:08,389 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 16:09:08,389 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 16:09:08,405 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-07-08 16:09:08,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-08 16:09:08,418 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:09:08,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:09:08,420 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:09:08,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:09:08,427 INFO L82 PathProgramCache]: Analyzing trace with hash 989240825, now seen corresponding path program 1 times [2020-07-08 16:09:08,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:09:08,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942904114] [2020-07-08 16:09:08,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:09:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:09:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:09:08,657 INFO L280 TraceCheckUtils]: 0: Hoare triple {30#true} assume true; {30#true} is VALID [2020-07-08 16:09:08,657 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {30#true} {30#true} #33#return; {30#true} is VALID [2020-07-08 16:09:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:09:08,756 INFO L280 TraceCheckUtils]: 0: Hoare triple {30#true} ~n := #in~n; {41#(= sum_~n |sum_#in~n|)} is VALID [2020-07-08 16:09:08,757 INFO L280 TraceCheckUtils]: 1: Hoare triple {41#(= sum_~n |sum_#in~n|)} ~m := #in~m; {41#(= sum_~n |sum_#in~n|)} is VALID [2020-07-08 16:09:08,758 INFO L280 TraceCheckUtils]: 2: Hoare triple {41#(= sum_~n |sum_#in~n|)} assume ~n <= 0; {42#(and (= sum_~n |sum_#in~n|) (<= sum_~n 0))} is VALID [2020-07-08 16:09:08,760 INFO L280 TraceCheckUtils]: 3: Hoare triple {42#(and (= sum_~n |sum_#in~n|) (<= sum_~n 0))} #res := ~m + ~n; {43#(<= |sum_#in~n| 0)} is VALID [2020-07-08 16:09:08,761 INFO L280 TraceCheckUtils]: 4: Hoare triple {43#(<= |sum_#in~n| 0)} assume true; {43#(<= |sum_#in~n| 0)} is VALID [2020-07-08 16:09:08,764 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {43#(<= |sum_#in~n| 0)} {34#(<= 2 main_~a~0)} #39#return; {31#false} is VALID [2020-07-08 16:09:08,765 INFO L263 TraceCheckUtils]: 0: Hoare triple {30#true} call ULTIMATE.init(); {30#true} is VALID [2020-07-08 16:09:08,766 INFO L280 TraceCheckUtils]: 1: Hoare triple {30#true} assume true; {30#true} is VALID [2020-07-08 16:09:08,766 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {30#true} {30#true} #33#return; {30#true} is VALID [2020-07-08 16:09:08,767 INFO L263 TraceCheckUtils]: 3: Hoare triple {30#true} call #t~ret2 := main(); {30#true} is VALID [2020-07-08 16:09:08,769 INFO L280 TraceCheckUtils]: 4: Hoare triple {30#true} ~a~0 := 2; {34#(<= 2 main_~a~0)} is VALID [2020-07-08 16:09:08,770 INFO L280 TraceCheckUtils]: 5: Hoare triple {34#(<= 2 main_~a~0)} ~b~0 := 3; {34#(<= 2 main_~a~0)} is VALID [2020-07-08 16:09:08,770 INFO L263 TraceCheckUtils]: 6: Hoare triple {34#(<= 2 main_~a~0)} call #t~ret1 := sum(~a~0, ~b~0); {30#true} is VALID [2020-07-08 16:09:08,771 INFO L280 TraceCheckUtils]: 7: Hoare triple {30#true} ~n := #in~n; {41#(= sum_~n |sum_#in~n|)} is VALID [2020-07-08 16:09:08,773 INFO L280 TraceCheckUtils]: 8: Hoare triple {41#(= sum_~n |sum_#in~n|)} ~m := #in~m; {41#(= sum_~n |sum_#in~n|)} is VALID [2020-07-08 16:09:08,774 INFO L280 TraceCheckUtils]: 9: Hoare triple {41#(= sum_~n |sum_#in~n|)} assume ~n <= 0; {42#(and (= sum_~n |sum_#in~n|) (<= sum_~n 0))} is VALID [2020-07-08 16:09:08,776 INFO L280 TraceCheckUtils]: 10: Hoare triple {42#(and (= sum_~n |sum_#in~n|) (<= sum_~n 0))} #res := ~m + ~n; {43#(<= |sum_#in~n| 0)} is VALID [2020-07-08 16:09:08,777 INFO L280 TraceCheckUtils]: 11: Hoare triple {43#(<= |sum_#in~n| 0)} assume true; {43#(<= |sum_#in~n| 0)} is VALID [2020-07-08 16:09:08,780 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {43#(<= |sum_#in~n| 0)} {34#(<= 2 main_~a~0)} #39#return; {31#false} is VALID [2020-07-08 16:09:08,780 INFO L280 TraceCheckUtils]: 13: Hoare triple {31#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {31#false} is VALID [2020-07-08 16:09:08,780 INFO L280 TraceCheckUtils]: 14: Hoare triple {31#false} ~result~0 := #t~ret1; {31#false} is VALID [2020-07-08 16:09:08,781 INFO L280 TraceCheckUtils]: 15: Hoare triple {31#false} havoc #t~ret1; {31#false} is VALID [2020-07-08 16:09:08,781 INFO L280 TraceCheckUtils]: 16: Hoare triple {31#false} assume ~result~0 != ~a~0 + ~b~0; {31#false} is VALID [2020-07-08 16:09:08,782 INFO L280 TraceCheckUtils]: 17: Hoare triple {31#false} assume !false; {31#false} is VALID [2020-07-08 16:09:08,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:09:08,785 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:09:08,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942904114] [2020-07-08 16:09:08,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:09:08,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-08 16:09:08,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004125450] [2020-07-08 16:09:08,797 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-07-08 16:09:08,800 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:09:08,804 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-08 16:09:08,850 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:09:08,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-08 16:09:08,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:09:08,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-08 16:09:08,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-08 16:09:08,864 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 6 states. [2020-07-08 16:09:09,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:09:09,144 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2020-07-08 16:09:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-08 16:09:09,144 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-07-08 16:09:09,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:09:09,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-08 16:09:09,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 42 transitions. [2020-07-08 16:09:09,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-08 16:09:09,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 42 transitions. [2020-07-08 16:09:09,162 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 42 transitions. [2020-07-08 16:09:09,237 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:09:09,251 INFO L225 Difference]: With dead ends: 39 [2020-07-08 16:09:09,251 INFO L226 Difference]: Without dead ends: 25 [2020-07-08 16:09:09,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-08 16:09:09,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-07-08 16:09:09,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-07-08 16:09:09,328 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:09:09,329 INFO L82 GeneralOperation]: Start isEquivalent. First operand 25 states. Second operand 25 states. [2020-07-08 16:09:09,329 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand 25 states. [2020-07-08 16:09:09,330 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 25 states. [2020-07-08 16:09:09,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:09:09,335 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-07-08 16:09:09,336 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2020-07-08 16:09:09,336 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:09:09,337 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:09:09,337 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand 25 states. [2020-07-08 16:09:09,337 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 25 states. [2020-07-08 16:09:09,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:09:09,354 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-07-08 16:09:09,355 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2020-07-08 16:09:09,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:09:09,356 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:09:09,356 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:09:09,356 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:09:09,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-07-08 16:09:09,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2020-07-08 16:09:09,361 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 18 [2020-07-08 16:09:09,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:09:09,361 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2020-07-08 16:09:09,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-08 16:09:09,362 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 25 states and 26 transitions. [2020-07-08 16:09:09,401 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:09:09,401 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2020-07-08 16:09:09,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-08 16:09:09,402 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:09:09,402 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:09:09,403 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 16:09:09,403 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:09:09,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:09:09,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1852726759, now seen corresponding path program 1 times [2020-07-08 16:09:09,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:09:09,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417641841] [2020-07-08 16:09:09,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Garbage collection #1: 11 nodes / 0 free / 0.0s / 0.0s total Resizing node table from 11 to 19 Garbage collection #2: 19 nodes / 0 free / 0.0s / 0.0s total Resizing node table from 19 to 37 Garbage collection #3: 37 nodes / 0 free / 0.0s / 0.0s total Resizing node table from 37 to 73 Garbage collection #1: 11 nodes / 0 free / 0.0s / 0.0s total Resizing node table from 11 to 19 Garbage collection #2: 19 nodes / 0 free / 0.0s / 0.0s total Resizing node table from 19 to 37 [2020-07-08 16:09:09,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:09:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:09:09,690 INFO L280 TraceCheckUtils]: 0: Hoare triple {224#true} assume true; {224#true} is VALID [2020-07-08 16:09:09,691 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {224#true} {224#true} #33#return; {224#true} is VALID [2020-07-08 16:09:09,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:09:09,797 INFO L280 TraceCheckUtils]: 0: Hoare triple {224#true} [41] sumENTRY-->L3_primed: Formula: (let ((.cse1 (+ v_oct_sum_~m_out_1 1)) (.cse0 (+ |v_oct_sum_#in~n_out_1| 1))) (and (<= |v_oct_sum_#in~m_in_1| v_oct_sum_~m_out_1) (<= v_oct_sum_~n_out_1 .cse0) (<= 2 (* 2 v_oct_sum_~n_out_1)) (<= .cse1 |v_oct_sum_#in~m_out_1|) (<= v_oct_sum_~m_out_1 |v_oct_sum_#in~m_in_1|) (<= |v_oct_sum_#in~n_in_1| v_oct_sum_~n_out_1) (<= |v_oct_sum_#in~m_out_1| .cse1) (<= .cse0 v_oct_sum_~n_out_1) (<= v_oct_sum_~n_out_1 |v_oct_sum_#in~n_in_1|))) InVars {sum_#in~m=|v_oct_sum_#in~m_in_1|, sum_#in~n=|v_oct_sum_#in~n_in_1|} OutVars{sum_~n=v_oct_sum_~n_out_1, sum_~m=v_oct_sum_~m_out_1, sum_#in~m=|v_oct_sum_#in~m_out_1|, sum_#in~n=|v_oct_sum_#in~n_out_1|} AuxVars[] AssignedVars[sum_~n, sum_~m, sum_#in~m, sum_#in~n] {224#true} is VALID [2020-07-08 16:09:09,798 INFO L280 TraceCheckUtils]: 1: Hoare triple {224#true} [40] L3_primed-->L3: Formula: (= v_sum_~n_1 |v_sum_#in~n_1|) InVars {sum_#in~n=|v_sum_#in~n_1|} OutVars{sum_~n=v_sum_~n_1, sum_#in~n=|v_sum_#in~n_1|} AuxVars[] AssignedVars[sum_~n] {237#(<= |sum_#in~n| (+ sum_~n 1))} is VALID [2020-07-08 16:09:09,799 INFO L280 TraceCheckUtils]: 2: Hoare triple {237#(<= |sum_#in~n| (+ sum_~n 1))} ~m := #in~m; {237#(<= |sum_#in~n| (+ sum_~n 1))} is VALID [2020-07-08 16:09:09,800 INFO L280 TraceCheckUtils]: 3: Hoare triple {237#(<= |sum_#in~n| (+ sum_~n 1))} assume ~n <= 0; {238#(<= |sum_#in~n| 1)} is VALID [2020-07-08 16:09:09,801 INFO L280 TraceCheckUtils]: 4: Hoare triple {238#(<= |sum_#in~n| 1)} #res := ~m + ~n; {238#(<= |sum_#in~n| 1)} is VALID [2020-07-08 16:09:09,802 INFO L280 TraceCheckUtils]: 5: Hoare triple {238#(<= |sum_#in~n| 1)} [43] sumFINAL-->sumEXIT_primed: Formula: (let ((.cse22 (* 2 |v_oct_sum_#res_out_1|)) (.cse25 (* 2 |v_oct_sum_#res_in_1|))) (let ((.cse16 (<= .cse25 4294967294)) (.cse14 (<= 0 (+ .cse22 4294967296))) (.cse17 (<= 0 (+ .cse25 4294967296))) (.cse18 (<= 0 (+ .cse22 4294967296))) (.cse12 (<= .cse22 4294967294)) (.cse15 (<= .cse22 4294967294)) (.cse13 (<= .cse25 4294967294)) (.cse11 (<= 0 (+ .cse25 4294967296))) (.cse0 (<= |v_oct_sum_#res_in_1| |v_oct_sum_#res_out_1|)) (.cse9 (<= .cse25 4294967294)) (.cse3 (<= 0 (+ .cse25 4294967296))) (.cse7 (<= .cse22 4294967294)) (.cse4 (<= 0 (+ .cse22 4294967296))) (.cse1 (<= .cse22 4294967294)) (.cse2 (<= 0 (+ .cse22 4294967296))) (.cse24 (<= |v_oct_sum_#res_out_1| |v_oct_sum_#res_in_1|)) (.cse5 (<= .cse25 4294967294)) (.cse6 (<= 0 (+ .cse25 4294967296)))) (or (let ((.cse8 (not .cse0)) (.cse10 (not .cse24))) (and .cse0 (or (not .cse1) (not .cse2) (not .cse3) (not .cse4) (not .cse5) (not .cse6) (not .cse7) .cse8 (not .cse9) .cse10) (or (not .cse11) (not .cse12) (not .cse13) (not .cse14) (not .cse15) (not .cse16) .cse8 (not .cse17) (not .cse18) .cse10) (let ((.cse19 (<= 0 (+ .cse22 4294967296))) (.cse21 (<= .cse22 4294967294)) (.cse23 (<= 0 (+ .cse22 4294967296)))) (or (and (let ((.cse20 (<= .cse22 4294967294))) (or (and .cse19 (not .cse20) .cse21) .cse20)) .cse23) (and .cse19 .cse21 (not .cse23)))) .cse24)) (and .cse16 .cse0 .cse14 .cse17 .cse18 .cse12 .cse15 .cse13 .cse24 .cse11) (and .cse0 .cse9 .cse3 .cse7 .cse4 .cse1 .cse2 .cse24 .cse5 .cse6)))) InVars {sum_#res=|v_oct_sum_#res_in_1|} OutVars{sum_#res=|v_oct_sum_#res_out_1|, sum_#t~ret0=|v_oct_sum_#t~ret0_out_1|} AuxVars[] AssignedVars[sum_#res, sum_#t~ret0] {238#(<= |sum_#in~n| 1)} is VALID [2020-07-08 16:09:09,804 INFO L280 TraceCheckUtils]: 6: Hoare triple {238#(<= |sum_#in~n| 1)} [42] sumEXIT_primed-->sumEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {238#(<= |sum_#in~n| 1)} is VALID [2020-07-08 16:09:09,806 INFO L275 TraceCheckUtils]: 7: Hoare quadruple {238#(<= |sum_#in~n| 1)} {228#(<= 2 main_~a~0)} #39#return; {225#false} is VALID [2020-07-08 16:09:09,806 INFO L263 TraceCheckUtils]: 0: Hoare triple {224#true} call ULTIMATE.init(); {224#true} is VALID [2020-07-08 16:09:09,807 INFO L280 TraceCheckUtils]: 1: Hoare triple {224#true} assume true; {224#true} is VALID [2020-07-08 16:09:09,807 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {224#true} {224#true} #33#return; {224#true} is VALID [2020-07-08 16:09:09,807 INFO L263 TraceCheckUtils]: 3: Hoare triple {224#true} call #t~ret2 := main(); {224#true} is VALID [2020-07-08 16:09:09,809 INFO L280 TraceCheckUtils]: 4: Hoare triple {224#true} ~a~0 := 2; {228#(<= 2 main_~a~0)} is VALID [2020-07-08 16:09:09,810 INFO L280 TraceCheckUtils]: 5: Hoare triple {228#(<= 2 main_~a~0)} ~b~0 := 3; {228#(<= 2 main_~a~0)} is VALID [2020-07-08 16:09:09,811 INFO L263 TraceCheckUtils]: 6: Hoare triple {228#(<= 2 main_~a~0)} call #t~ret1 := sum(~a~0, ~b~0); {224#true} is VALID [2020-07-08 16:09:09,811 INFO L280 TraceCheckUtils]: 7: Hoare triple {224#true} [41] sumENTRY-->L3_primed: Formula: (let ((.cse1 (+ v_oct_sum_~m_out_1 1)) (.cse0 (+ |v_oct_sum_#in~n_out_1| 1))) (and (<= |v_oct_sum_#in~m_in_1| v_oct_sum_~m_out_1) (<= v_oct_sum_~n_out_1 .cse0) (<= 2 (* 2 v_oct_sum_~n_out_1)) (<= .cse1 |v_oct_sum_#in~m_out_1|) (<= v_oct_sum_~m_out_1 |v_oct_sum_#in~m_in_1|) (<= |v_oct_sum_#in~n_in_1| v_oct_sum_~n_out_1) (<= |v_oct_sum_#in~m_out_1| .cse1) (<= .cse0 v_oct_sum_~n_out_1) (<= v_oct_sum_~n_out_1 |v_oct_sum_#in~n_in_1|))) InVars {sum_#in~m=|v_oct_sum_#in~m_in_1|, sum_#in~n=|v_oct_sum_#in~n_in_1|} OutVars{sum_~n=v_oct_sum_~n_out_1, sum_~m=v_oct_sum_~m_out_1, sum_#in~m=|v_oct_sum_#in~m_out_1|, sum_#in~n=|v_oct_sum_#in~n_out_1|} AuxVars[] AssignedVars[sum_~n, sum_~m, sum_#in~m, sum_#in~n] {224#true} is VALID [2020-07-08 16:09:09,812 INFO L280 TraceCheckUtils]: 8: Hoare triple {224#true} [40] L3_primed-->L3: Formula: (= v_sum_~n_1 |v_sum_#in~n_1|) InVars {sum_#in~n=|v_sum_#in~n_1|} OutVars{sum_~n=v_sum_~n_1, sum_#in~n=|v_sum_#in~n_1|} AuxVars[] AssignedVars[sum_~n] {237#(<= |sum_#in~n| (+ sum_~n 1))} is VALID [2020-07-08 16:09:09,813 INFO L280 TraceCheckUtils]: 9: Hoare triple {237#(<= |sum_#in~n| (+ sum_~n 1))} ~m := #in~m; {237#(<= |sum_#in~n| (+ sum_~n 1))} is VALID [2020-07-08 16:09:09,814 INFO L280 TraceCheckUtils]: 10: Hoare triple {237#(<= |sum_#in~n| (+ sum_~n 1))} assume ~n <= 0; {238#(<= |sum_#in~n| 1)} is VALID [2020-07-08 16:09:09,816 INFO L280 TraceCheckUtils]: 11: Hoare triple {238#(<= |sum_#in~n| 1)} #res := ~m + ~n; {238#(<= |sum_#in~n| 1)} is VALID [2020-07-08 16:09:09,818 INFO L280 TraceCheckUtils]: 12: Hoare triple {238#(<= |sum_#in~n| 1)} [43] sumFINAL-->sumEXIT_primed: Formula: (let ((.cse22 (* 2 |v_oct_sum_#res_out_1|)) (.cse25 (* 2 |v_oct_sum_#res_in_1|))) (let ((.cse16 (<= .cse25 4294967294)) (.cse14 (<= 0 (+ .cse22 4294967296))) (.cse17 (<= 0 (+ .cse25 4294967296))) (.cse18 (<= 0 (+ .cse22 4294967296))) (.cse12 (<= .cse22 4294967294)) (.cse15 (<= .cse22 4294967294)) (.cse13 (<= .cse25 4294967294)) (.cse11 (<= 0 (+ .cse25 4294967296))) (.cse0 (<= |v_oct_sum_#res_in_1| |v_oct_sum_#res_out_1|)) (.cse9 (<= .cse25 4294967294)) (.cse3 (<= 0 (+ .cse25 4294967296))) (.cse7 (<= .cse22 4294967294)) (.cse4 (<= 0 (+ .cse22 4294967296))) (.cse1 (<= .cse22 4294967294)) (.cse2 (<= 0 (+ .cse22 4294967296))) (.cse24 (<= |v_oct_sum_#res_out_1| |v_oct_sum_#res_in_1|)) (.cse5 (<= .cse25 4294967294)) (.cse6 (<= 0 (+ .cse25 4294967296)))) (or (let ((.cse8 (not .cse0)) (.cse10 (not .cse24))) (and .cse0 (or (not .cse1) (not .cse2) (not .cse3) (not .cse4) (not .cse5) (not .cse6) (not .cse7) .cse8 (not .cse9) .cse10) (or (not .cse11) (not .cse12) (not .cse13) (not .cse14) (not .cse15) (not .cse16) .cse8 (not .cse17) (not .cse18) .cse10) (let ((.cse19 (<= 0 (+ .cse22 4294967296))) (.cse21 (<= .cse22 4294967294)) (.cse23 (<= 0 (+ .cse22 4294967296)))) (or (and (let ((.cse20 (<= .cse22 4294967294))) (or (and .cse19 (not .cse20) .cse21) .cse20)) .cse23) (and .cse19 .cse21 (not .cse23)))) .cse24)) (and .cse16 .cse0 .cse14 .cse17 .cse18 .cse12 .cse15 .cse13 .cse24 .cse11) (and .cse0 .cse9 .cse3 .cse7 .cse4 .cse1 .cse2 .cse24 .cse5 .cse6)))) InVars {sum_#res=|v_oct_sum_#res_in_1|} OutVars{sum_#res=|v_oct_sum_#res_out_1|, sum_#t~ret0=|v_oct_sum_#t~ret0_out_1|} AuxVars[] AssignedVars[sum_#res, sum_#t~ret0] {238#(<= |sum_#in~n| 1)} is VALID [2020-07-08 16:09:09,819 INFO L280 TraceCheckUtils]: 13: Hoare triple {238#(<= |sum_#in~n| 1)} [42] sumEXIT_primed-->sumEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {238#(<= |sum_#in~n| 1)} is VALID [2020-07-08 16:09:09,821 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {238#(<= |sum_#in~n| 1)} {228#(<= 2 main_~a~0)} #39#return; {225#false} is VALID [2020-07-08 16:09:09,821 INFO L280 TraceCheckUtils]: 15: Hoare triple {225#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {225#false} is VALID [2020-07-08 16:09:09,821 INFO L280 TraceCheckUtils]: 16: Hoare triple {225#false} ~result~0 := #t~ret1; {225#false} is VALID [2020-07-08 16:09:09,822 INFO L280 TraceCheckUtils]: 17: Hoare triple {225#false} havoc #t~ret1; {225#false} is VALID [2020-07-08 16:09:09,822 INFO L280 TraceCheckUtils]: 18: Hoare triple {225#false} assume ~result~0 != ~a~0 + ~b~0; {225#false} is VALID [2020-07-08 16:09:09,822 INFO L280 TraceCheckUtils]: 19: Hoare triple {225#false} assume !false; {225#false} is VALID [2020-07-08 16:09:09,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:09:10,096 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:09:10,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417641841] [2020-07-08 16:09:10,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:09:10,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-07-08 16:09:10,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336884155] [2020-07-08 16:09:10,098 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2020-07-08 16:09:10,099 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:09:10,099 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states. [2020-07-08 16:09:10,118 WARN L140 InductivityCheck]: Transition 238#(<= |sum_#in~n| 1) ( _ , 241#(and (= sum_~m |sum_#in~m|) (= sum_~n |sum_#in~n|) (< 0 sum_~n)) , #37#return; , 238#(<= |sum_#in~n| 1) ) not inductive [2020-07-08 16:09:10,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 16:09:10,120 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:113) 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) [2020-07-08 16:09:10,126 INFO L168 Benchmark]: Toolchain (without parser) took 2454.47 ms. Allocated memory was 137.9 MB in the beginning and 234.4 MB in the end (delta: 96.5 MB). Free memory was 102.8 MB in the beginning and 114.9 MB in the end (delta: -12.1 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. [2020-07-08 16:09:10,127 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-08 16:09:10,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.24 ms. Allocated memory is still 137.9 MB. Free memory was 102.6 MB in the beginning and 93.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-07-08 16:09:10,129 INFO L168 Benchmark]: Boogie Preprocessor took 24.47 ms. Allocated memory is still 137.9 MB. Free memory was 93.2 MB in the beginning and 91.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-07-08 16:09:10,130 INFO L168 Benchmark]: RCFGBuilder took 385.53 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 91.8 MB in the beginning and 166.2 MB in the end (delta: -74.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2020-07-08 16:09:10,131 INFO L168 Benchmark]: TraceAbstraction took 1810.50 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 165.5 MB in the beginning and 114.9 MB in the end (delta: 50.6 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. [2020-07-08 16:09:10,135 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 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 228.24 ms. Allocated memory is still 137.9 MB. Free memory was 102.6 MB in the beginning and 93.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.47 ms. Allocated memory is still 137.9 MB. Free memory was 93.2 MB in the beginning and 91.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 385.53 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 91.8 MB in the beginning and 166.2 MB in the end (delta: -74.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1810.50 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 165.5 MB in the beginning and 114.9 MB in the end (delta: 50.6 MB). Peak memory consumption was 82.6 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...