/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/id_i15_o15-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:14:25,587 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:14:25,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:14:25,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:14:25,607 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:14:25,609 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:14:25,611 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:14:25,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:14:25,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:14:25,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:14:25,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:14:25,632 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:14:25,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:14:25,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:14:25,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:14:25,638 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:14:25,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:14:25,640 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:14:25,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:14:25,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:14:25,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:14:25,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:14:25,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:14:25,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:14:25,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-18 00:14:25,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-18 00:14:25,658 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-18 00:14:25,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-18 00:14:25,660 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-18 00:14:25,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-18 00:14:25,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 00:14:25,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 00:14:25,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 00:14:25,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 00:14:25,666 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 00:14:25,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 00:14:25,667 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 00:14:25,667 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 00:14:25,667 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:14:25,668 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:14:25,669 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:14:25,670 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 00:14:25,698 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:14:25,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:14:25,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:14:25,700 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:14:25,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:14:25,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:14:25,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:14:25,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:14:25,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:14:25,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:14:25,703 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:14:25,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:14:25,704 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:14:25,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:14:25,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:14:25,704 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:14:25,704 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:14:25,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:14:25,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:14:25,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:14:25,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:14:25,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:14:25,706 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:14:25,985 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:14:25,995 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:14:25,998 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:14:26,000 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:14:26,000 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:14:26,001 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i15_o15-1.c [2020-07-18 00:14:26,080 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98704c963/4fdb4858982247bcbf12fd3bf961b2c9/FLAG7616fc26a [2020-07-18 00:14:26,544 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:14:26,545 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/id_i15_o15-1.c [2020-07-18 00:14:26,551 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98704c963/4fdb4858982247bcbf12fd3bf961b2c9/FLAG7616fc26a [2020-07-18 00:14:26,897 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98704c963/4fdb4858982247bcbf12fd3bf961b2c9 [2020-07-18 00:14:26,906 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:14:26,909 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:14:26,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:14:26,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:14:26,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:14:26,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:14:26" (1/1) ... [2020-07-18 00:14:26,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c4351c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:26, skipping insertion in model container [2020-07-18 00:14:26,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:14:26" (1/1) ... [2020-07-18 00:14:26,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:14:26,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:14:27,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:14:27,184 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:14:27,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:14:27,229 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:14:27,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:27 WrapperNode [2020-07-18 00:14:27,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:14:27,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:14:27,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:14:27,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:14:27,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:27" (1/1) ... [2020-07-18 00:14:27,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:27" (1/1) ... [2020-07-18 00:14:27,252 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:27" (1/1) ... [2020-07-18 00:14:27,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:27" (1/1) ... [2020-07-18 00:14:27,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:27" (1/1) ... [2020-07-18 00:14:27,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:27" (1/1) ... [2020-07-18 00:14:27,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:27" (1/1) ... [2020-07-18 00:14:27,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:14:27,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:14:27,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:14:27,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:14:27,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:27" (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 00:14:27,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:14:27,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:14:27,417 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-07-18 00:14:27,417 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:14:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 00:14:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:14:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-07-18 00:14:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:14:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:14:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:14:27,622 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:14:27,622 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-18 00:14:27,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:14:27 BoogieIcfgContainer [2020-07-18 00:14:27,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:14:27,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:14:27,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:14:27,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:14:27,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:14:26" (1/3) ... [2020-07-18 00:14:27,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53491b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:14:27, skipping insertion in model container [2020-07-18 00:14:27,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:27" (2/3) ... [2020-07-18 00:14:27,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53491b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:14:27, skipping insertion in model container [2020-07-18 00:14:27,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:14:27" (3/3) ... [2020-07-18 00:14:27,635 INFO L109 eAbstractionObserver]: Analyzing ICFG id_i15_o15-1.c [2020-07-18 00:14:27,644 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:14:27,651 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:14:27,665 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:14:27,687 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:14:27,688 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:14:27,688 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:14:27,688 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:14:27,688 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:14:27,688 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:14:27,688 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:14:27,688 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:14:27,700 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-07-18 00:14:27,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-18 00:14:27,710 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:14:27,711 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:14:27,711 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:14:27,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:14:27,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1037734449, now seen corresponding path program 1 times [2020-07-18 00:14:27,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:14:27,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [673317279] [2020-07-18 00:14:27,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:14:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:14:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:14:28,011 INFO L280 TraceCheckUtils]: 0: Hoare triple {28#true} assume true; {28#true} is VALID [2020-07-18 00:14:28,012 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {28#true} {28#true} #31#return; {28#true} is VALID [2020-07-18 00:14:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:14:28,078 INFO L280 TraceCheckUtils]: 0: Hoare triple {28#true} ~x := #in~x; {38#(= |id_#in~x| id_~x)} is VALID [2020-07-18 00:14:28,079 INFO L280 TraceCheckUtils]: 1: Hoare triple {38#(= |id_#in~x| id_~x)} assume 0 == ~x; {39#(= 0 |id_#in~x|)} is VALID [2020-07-18 00:14:28,080 INFO L280 TraceCheckUtils]: 2: Hoare triple {39#(= 0 |id_#in~x|)} #res := 0; {39#(= 0 |id_#in~x|)} is VALID [2020-07-18 00:14:28,081 INFO L280 TraceCheckUtils]: 3: Hoare triple {39#(= 0 |id_#in~x|)} assume true; {39#(= 0 |id_#in~x|)} is VALID [2020-07-18 00:14:28,083 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {39#(= 0 |id_#in~x|)} {32#(<= 15 main_~input~0)} #35#return; {29#false} is VALID [2020-07-18 00:14:28,084 INFO L263 TraceCheckUtils]: 0: Hoare triple {28#true} call ULTIMATE.init(); {28#true} is VALID [2020-07-18 00:14:28,085 INFO L280 TraceCheckUtils]: 1: Hoare triple {28#true} assume true; {28#true} is VALID [2020-07-18 00:14:28,085 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {28#true} {28#true} #31#return; {28#true} is VALID [2020-07-18 00:14:28,086 INFO L263 TraceCheckUtils]: 3: Hoare triple {28#true} call #t~ret2 := main(); {28#true} is VALID [2020-07-18 00:14:28,087 INFO L280 TraceCheckUtils]: 4: Hoare triple {28#true} ~input~0 := 15; {32#(<= 15 main_~input~0)} is VALID [2020-07-18 00:14:28,087 INFO L263 TraceCheckUtils]: 5: Hoare triple {32#(<= 15 main_~input~0)} call #t~ret1 := id(~input~0); {28#true} is VALID [2020-07-18 00:14:28,089 INFO L280 TraceCheckUtils]: 6: Hoare triple {28#true} ~x := #in~x; {38#(= |id_#in~x| id_~x)} is VALID [2020-07-18 00:14:28,090 INFO L280 TraceCheckUtils]: 7: Hoare triple {38#(= |id_#in~x| id_~x)} assume 0 == ~x; {39#(= 0 |id_#in~x|)} is VALID [2020-07-18 00:14:28,092 INFO L280 TraceCheckUtils]: 8: Hoare triple {39#(= 0 |id_#in~x|)} #res := 0; {39#(= 0 |id_#in~x|)} is VALID [2020-07-18 00:14:28,093 INFO L280 TraceCheckUtils]: 9: Hoare triple {39#(= 0 |id_#in~x|)} assume true; {39#(= 0 |id_#in~x|)} is VALID [2020-07-18 00:14:28,095 INFO L275 TraceCheckUtils]: 10: Hoare quadruple {39#(= 0 |id_#in~x|)} {32#(<= 15 main_~input~0)} #35#return; {29#false} is VALID [2020-07-18 00:14:28,096 INFO L280 TraceCheckUtils]: 11: Hoare triple {29#false} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {29#false} is VALID [2020-07-18 00:14:28,099 INFO L280 TraceCheckUtils]: 12: Hoare triple {29#false} ~result~0 := #t~ret1; {29#false} is VALID [2020-07-18 00:14:28,100 INFO L280 TraceCheckUtils]: 13: Hoare triple {29#false} havoc #t~ret1; {29#false} is VALID [2020-07-18 00:14:28,100 INFO L280 TraceCheckUtils]: 14: Hoare triple {29#false} assume 15 != ~result~0; {29#false} is VALID [2020-07-18 00:14:28,101 INFO L280 TraceCheckUtils]: 15: Hoare triple {29#false} assume !false; {29#false} is VALID [2020-07-18 00:14:28,103 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 00:14:28,272 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:14:28,275 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [673317279] [2020-07-18 00:14:28,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:14:28,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-18 00:14:28,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423423459] [2020-07-18 00:14:28,286 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-07-18 00:14:28,289 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:14:28,293 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-18 00:14:28,319 WARN L140 InductivityCheck]: Transition 43#(and (= 0 |id_#in~x|) (<= 0 (+ main_~result~0 2147483648)) (<= main_~result~0 2147483647) (not (= 15 main_~result~0))) ( _ , assume !false; , 29#false ) not inductive [2020-07-18 00:14:28,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:14:28,321 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-18 00:14:28,328 INFO L168 Benchmark]: Toolchain (without parser) took 1418.53 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 103.1 MB in the beginning and 124.6 MB in the end (delta: -21.5 MB). Peak memory consumption was 42.0 MB. Max. memory is 7.1 GB. [2020-07-18 00:14:28,329 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-18 00:14:28,330 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.17 ms. Allocated memory is still 137.9 MB. Free memory was 102.7 MB in the beginning and 93.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-07-18 00:14:28,331 INFO L168 Benchmark]: Boogie Preprocessor took 32.23 ms. Allocated memory is still 137.9 MB. Free memory was 93.4 MB in the beginning and 92.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-07-18 00:14:28,333 INFO L168 Benchmark]: RCFGBuilder took 363.04 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 91.9 MB in the beginning and 165.3 MB in the end (delta: -73.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2020-07-18 00:14:28,334 INFO L168 Benchmark]: TraceAbstraction took 696.45 ms. Allocated memory is still 201.3 MB. Free memory was 165.3 MB in the beginning and 124.6 MB in the end (delta: 40.7 MB). Peak memory consumption was 40.7 MB. Max. memory is 7.1 GB. [2020-07-18 00:14:28,338 INFO L336 ainManager$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 0.22 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 320.17 ms. Allocated memory is still 137.9 MB. Free memory was 102.7 MB in the beginning and 93.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.23 ms. Allocated memory is still 137.9 MB. Free memory was 93.4 MB in the beginning and 92.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 363.04 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 91.9 MB in the beginning and 165.3 MB in the end (delta: -73.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 696.45 ms. Allocated memory is still 201.3 MB. Free memory was 165.3 MB in the beginning and 124.6 MB in the end (delta: 40.7 MB). Peak memory consumption was 40.7 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...