/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/ldv-regression/test20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 16:24:21,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 16:24:21,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 16:24:21,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-08 16:24:21,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 16:24:21,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 16:24:21,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 16:24:21,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 16:24:21,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 16:24:21,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 16:24:21,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 16:24:21,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 16:24:21,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 16:24:21,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 16:24:21,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 16:24:21,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 16:24:21,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-08 16:24:21,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 16:24:21,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 16:24:21,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 16:24:21,637 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 16:24:21,646 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 16:24:21,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 16:24:21,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 16:24:21,648 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 16:24:21,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 16:24:21,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 16:24:21,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 16:24:21,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 16:24:21,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 16:24:21,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 16:24:21,650 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 16:24:21,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 16:24:21,650 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 16:24:21,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 16:24:21,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 16:24:21,651 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 16:24:21,651 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 16:24:21,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 16:24:21,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 16:24:21,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 16:24:21,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 16:24:21,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 16:24:21,652 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-08 16:24:21,944 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 16:24:21,962 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 16:24:21,967 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 16:24:21,969 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 16:24:21,969 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 16:24:21,970 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test20.c [2020-07-08 16:24:22,060 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/593a477f3/98f3cbc6be16425ea950a36b85f883bc/FLAG280a3c0ba [2020-07-08 16:24:22,587 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 16:24:22,588 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test20.c [2020-07-08 16:24:22,595 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/593a477f3/98f3cbc6be16425ea950a36b85f883bc/FLAG280a3c0ba [2020-07-08 16:24:22,945 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/593a477f3/98f3cbc6be16425ea950a36b85f883bc [2020-07-08 16:24:22,956 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 16:24:22,958 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 16:24:22,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 16:24:22,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 16:24:22,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 16:24:22,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:24:22" (1/1) ... [2020-07-08 16:24:22,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47a5b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:24:22, skipping insertion in model container [2020-07-08 16:24:22,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:24:22" (1/1) ... [2020-07-08 16:24:22,977 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 16:24:22,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 16:24:23,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:24:23,170 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 16:24:23,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:24:23,216 INFO L208 MainTranslator]: Completed translation [2020-07-08 16:24:23,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:24:23 WrapperNode [2020-07-08 16:24:23,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 16:24:23,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 16:24:23,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 16:24:23,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 16:24:23,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:24:23" (1/1) ... [2020-07-08 16:24:23,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:24:23" (1/1) ... [2020-07-08 16:24:23,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:24:23" (1/1) ... [2020-07-08 16:24:23,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:24:23" (1/1) ... [2020-07-08 16:24:23,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:24:23" (1/1) ... [2020-07-08 16:24:23,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:24:23" (1/1) ... [2020-07-08 16:24:23,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:24:23" (1/1) ... [2020-07-08 16:24:23,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 16:24:23,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 16:24:23,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 16:24:23,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 16:24:23,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:24:23" (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 16:24:23,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 16:24:23,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 16:24:23,408 INFO L138 BoogieDeclarations]: Found implementation of procedure equal [2020-07-08 16:24:23,408 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 16:24:23,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 16:24:23,408 INFO L130 BoogieDeclarations]: Found specification of procedure equal [2020-07-08 16:24:23,408 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 16:24:23,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 16:24:23,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-08 16:24:23,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-08 16:24:23,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 16:24:23,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-08 16:24:23,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-08 16:24:23,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 16:24:23,711 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 16:24:23,711 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-08 16:24:23,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:24:23 BoogieIcfgContainer [2020-07-08 16:24:23,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 16:24:23,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 16:24:23,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 16:24:23,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 16:24:23,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 04:24:22" (1/3) ... [2020-07-08 16:24:23,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@388661fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:24:23, skipping insertion in model container [2020-07-08 16:24:23,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:24:23" (2/3) ... [2020-07-08 16:24:23,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@388661fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:24:23, skipping insertion in model container [2020-07-08 16:24:23,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:24:23" (3/3) ... [2020-07-08 16:24:23,732 INFO L109 eAbstractionObserver]: Analyzing ICFG test20.c [2020-07-08 16:24:23,755 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 16:24:23,763 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 16:24:23,778 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 16:24:23,802 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 16:24:23,803 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 16:24:23,803 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-08 16:24:23,803 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 16:24:23,803 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 16:24:23,803 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 16:24:23,804 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 16:24:23,804 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 16:24:23,817 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-07-08 16:24:23,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-08 16:24:23,828 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:24:23,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:24:23,829 INFO L427 AbstractCegarLoop]: === Iteration 1 === [equalErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:24:23,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:24:23,836 INFO L82 PathProgramCache]: Analyzing trace with hash 923328836, now seen corresponding path program 1 times [2020-07-08 16:24:23,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:24:23,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [898533091] [2020-07-08 16:24:23,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:24:23,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:24:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:24:24,258 INFO L280 TraceCheckUtils]: 0: Hoare triple {42#(and (= |~#a~0.base| |old(~#a~0.base)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#valid| |old(#valid)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |old(#length)| |#length|))} #NULL.base, #NULL.offset := 0, 0; {27#true} is VALID [2020-07-08 16:24:24,259 INFO L280 TraceCheckUtils]: 1: Hoare triple {27#true} #valid := #valid[0 := 0]; {27#true} is VALID [2020-07-08 16:24:24,259 INFO L280 TraceCheckUtils]: 2: Hoare triple {27#true} assume 0 < #StackHeapBarrier; {27#true} is VALID [2020-07-08 16:24:24,262 INFO L280 TraceCheckUtils]: 3: Hoare triple {27#true} SUMMARY for call ~#a~0.base, ~#a~0.offset := #Ultimate.allocOnStack(4); srcloc: L14 {43#(= 1 (select |#valid| |~#a~0.base|))} is VALID [2020-07-08 16:24:24,263 INFO L280 TraceCheckUtils]: 4: Hoare triple {43#(= 1 (select |#valid| |~#a~0.base|))} SUMMARY for call write~init~int(0, ~#a~0.base, ~#a~0.offset, 4); srcloc: L14-1 {43#(= 1 (select |#valid| |~#a~0.base|))} is VALID [2020-07-08 16:24:24,265 INFO L280 TraceCheckUtils]: 5: Hoare triple {43#(= 1 (select |#valid| |~#a~0.base|))} SUMMARY for call ~#b~0.base, ~#b~0.offset := #Ultimate.allocOnStack(4); srcloc: L14-2 {38#(not (= |~#b~0.base| |~#a~0.base|))} is VALID [2020-07-08 16:24:24,266 INFO L280 TraceCheckUtils]: 6: Hoare triple {38#(not (= |~#b~0.base| |~#a~0.base|))} SUMMARY for call write~init~int(0, ~#b~0.base, ~#b~0.offset, 4); srcloc: L14-3 {38#(not (= |~#b~0.base| |~#a~0.base|))} is VALID [2020-07-08 16:24:24,268 INFO L280 TraceCheckUtils]: 7: Hoare triple {38#(not (= |~#b~0.base| |~#a~0.base|))} assume true; {38#(not (= |~#b~0.base| |~#a~0.base|))} is VALID [2020-07-08 16:24:24,270 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {38#(not (= |~#b~0.base| |~#a~0.base|))} {27#true} #25#return; {38#(not (= |~#b~0.base| |~#a~0.base|))} is VALID [2020-07-08 16:24:24,276 INFO L263 TraceCheckUtils]: 0: Hoare triple {27#true} call ULTIMATE.init(); {42#(and (= |~#a~0.base| |old(~#a~0.base)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#valid| |old(#valid)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |old(#length)| |#length|))} is VALID [2020-07-08 16:24:24,276 INFO L280 TraceCheckUtils]: 1: Hoare triple {42#(and (= |~#a~0.base| |old(~#a~0.base)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#valid| |old(#valid)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |old(#length)| |#length|))} #NULL.base, #NULL.offset := 0, 0; {27#true} is VALID [2020-07-08 16:24:24,277 INFO L280 TraceCheckUtils]: 2: Hoare triple {27#true} #valid := #valid[0 := 0]; {27#true} is VALID [2020-07-08 16:24:24,277 INFO L280 TraceCheckUtils]: 3: Hoare triple {27#true} assume 0 < #StackHeapBarrier; {27#true} is VALID [2020-07-08 16:24:24,282 INFO L280 TraceCheckUtils]: 4: Hoare triple {27#true} SUMMARY for call ~#a~0.base, ~#a~0.offset := #Ultimate.allocOnStack(4); srcloc: L14 {43#(= 1 (select |#valid| |~#a~0.base|))} is VALID [2020-07-08 16:24:24,283 INFO L280 TraceCheckUtils]: 5: Hoare triple {43#(= 1 (select |#valid| |~#a~0.base|))} SUMMARY for call write~init~int(0, ~#a~0.base, ~#a~0.offset, 4); srcloc: L14-1 {43#(= 1 (select |#valid| |~#a~0.base|))} is VALID [2020-07-08 16:24:24,285 INFO L280 TraceCheckUtils]: 6: Hoare triple {43#(= 1 (select |#valid| |~#a~0.base|))} SUMMARY for call ~#b~0.base, ~#b~0.offset := #Ultimate.allocOnStack(4); srcloc: L14-2 {38#(not (= |~#b~0.base| |~#a~0.base|))} is VALID [2020-07-08 16:24:24,286 INFO L280 TraceCheckUtils]: 7: Hoare triple {38#(not (= |~#b~0.base| |~#a~0.base|))} SUMMARY for call write~init~int(0, ~#b~0.base, ~#b~0.offset, 4); srcloc: L14-3 {38#(not (= |~#b~0.base| |~#a~0.base|))} is VALID [2020-07-08 16:24:24,288 INFO L280 TraceCheckUtils]: 8: Hoare triple {38#(not (= |~#b~0.base| |~#a~0.base|))} assume true; {38#(not (= |~#b~0.base| |~#a~0.base|))} is VALID [2020-07-08 16:24:24,289 INFO L275 TraceCheckUtils]: 9: Hoare quadruple {38#(not (= |~#b~0.base| |~#a~0.base|))} {27#true} #25#return; {38#(not (= |~#b~0.base| |~#a~0.base|))} is VALID [2020-07-08 16:24:24,291 INFO L263 TraceCheckUtils]: 10: Hoare triple {38#(not (= |~#b~0.base| |~#a~0.base|))} call #t~ret0 := main(); {38#(not (= |~#b~0.base| |~#a~0.base|))} is VALID [2020-07-08 16:24:24,294 INFO L263 TraceCheckUtils]: 11: Hoare triple {38#(not (= |~#b~0.base| |~#a~0.base|))} call equal(~#a~0.base, ~#a~0.offset, ~#b~0.base, ~#b~0.offset); {39#(not (= |equal_#in~a.base| |equal_#in~b.base|))} is VALID [2020-07-08 16:24:24,295 INFO L280 TraceCheckUtils]: 12: Hoare triple {39#(not (= |equal_#in~a.base| |equal_#in~b.base|))} ~a.base, ~a.offset := #in~a.base, #in~a.offset; {40#(not (= equal_~a.base |equal_#in~b.base|))} is VALID [2020-07-08 16:24:24,297 INFO L280 TraceCheckUtils]: 13: Hoare triple {40#(not (= equal_~a.base |equal_#in~b.base|))} ~b.base, ~b.offset := #in~b.base, #in~b.offset; {41#(not (= equal_~a.base equal_~b.base))} is VALID [2020-07-08 16:24:24,298 INFO L280 TraceCheckUtils]: 14: Hoare triple {41#(not (= equal_~a.base equal_~b.base))} assume ~a.base == ~b.base && ~a.offset == ~b.offset; {28#false} is VALID [2020-07-08 16:24:24,299 INFO L280 TraceCheckUtils]: 15: Hoare triple {28#false} assume !false; {28#false} is VALID [2020-07-08 16:24:24,302 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 16:24:24,302 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:24:24,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [898533091] [2020-07-08 16:24:24,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:24:24,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-08 16:24:24,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370140011] [2020-07-08 16:24:24,316 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2020-07-08 16:24:24,320 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:24:24,324 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-08 16:24:24,361 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:24:24,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-08 16:24:24,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:24:24,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-08 16:24:24,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-08 16:24:24,376 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 8 states. [2020-07-08 16:24:25,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:24:25,053 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2020-07-08 16:24:25,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-08 16:24:25,054 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2020-07-08 16:24:25,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:24:25,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-08 16:24:25,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 30 transitions. [2020-07-08 16:24:25,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-08 16:24:25,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 30 transitions. [2020-07-08 16:24:25,076 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 30 transitions. [2020-07-08 16:24:25,129 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:24:25,136 INFO L225 Difference]: With dead ends: 31 [2020-07-08 16:24:25,136 INFO L226 Difference]: Without dead ends: 0 [2020-07-08 16:24:25,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-07-08 16:24:25,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-08 16:24:25,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-08 16:24:25,165 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:24:25,165 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-08 16:24:25,166 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-08 16:24:25,166 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-08 16:24:25,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:24:25,167 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-08 16:24:25,167 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 16:24:25,168 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:24:25,168 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:24:25,168 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-08 16:24:25,168 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-08 16:24:25,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:24:25,169 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-08 16:24:25,169 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 16:24:25,169 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:24:25,169 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:24:25,170 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:24:25,170 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:24:25,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-08 16:24:25,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-08 16:24:25,172 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-07-08 16:24:25,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:24:25,173 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-08 16:24:25,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-08 16:24:25,173 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2020-07-08 16:24:25,173 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:24:25,174 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 16:24:25,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:24:25,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 16:24:25,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-08 16:24:25,640 INFO L264 CegarLoopResult]: At program point equalEXIT(lines 4 12) the Hoare annotation is: (or (= |~#b~0.base| |~#a~0.base|) (and (not (= equal_~a.base equal_~b.base)) (not (= equal_~a.base |equal_#in~b.base|))) (= |equal_#in~a.base| |equal_#in~b.base|) (not (= 1 (select |#valid| |~#a~0.base|)))) [2020-07-08 16:24:25,641 INFO L271 CegarLoopResult]: At program point equalENTRY(lines 4 12) the Hoare annotation is: true [2020-07-08 16:24:25,641 INFO L264 CegarLoopResult]: At program point equalFINAL(lines 4 12) the Hoare annotation is: (or (= |~#b~0.base| |~#a~0.base|) (and (not (= equal_~a.base equal_~b.base)) (not (= equal_~a.base |equal_#in~b.base|))) (= |equal_#in~a.base| |equal_#in~b.base|) (not (= 1 (select |#valid| |~#a~0.base|)))) [2020-07-08 16:24:25,641 INFO L264 CegarLoopResult]: At program point L6(lines 4 12) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (= |equal_#in~a.base| |equal_#in~b.base|) (not (= 1 (select |#valid| |~#a~0.base|)))) [2020-07-08 16:24:25,642 INFO L264 CegarLoopResult]: At program point L5(lines 5 7) the Hoare annotation is: (or (= |~#b~0.base| |~#a~0.base|) (and (not (= equal_~a.base equal_~b.base)) (not (= equal_~a.base |equal_#in~b.base|))) (= |equal_#in~a.base| |equal_#in~b.base|) (not (= 1 (select |#valid| |~#a~0.base|)))) [2020-07-08 16:24:25,642 INFO L264 CegarLoopResult]: At program point equalErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (= |equal_#in~a.base| |equal_#in~b.base|) (not (= 1 (select |#valid| |~#a~0.base|)))) [2020-07-08 16:24:25,642 INFO L264 CegarLoopResult]: At program point L4(lines 4 12) the Hoare annotation is: (or (not (= equal_~a.base |equal_#in~b.base|)) (= |~#b~0.base| |~#a~0.base|) (= |equal_#in~a.base| |equal_#in~b.base|) (not (= 1 (select |#valid| |~#a~0.base|)))) [2020-07-08 16:24:25,642 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-08 16:24:25,642 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-07-08 16:24:25,643 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-07-08 16:24:25,643 INFO L264 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 14) the Hoare annotation is: (and (not (= |~#b~0.base| |~#a~0.base|)) (= 1 (select |#valid| |~#a~0.base|))) [2020-07-08 16:24:25,643 INFO L264 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: (= 1 (select |#valid| |~#a~0.base|)) [2020-07-08 16:24:25,643 INFO L264 CegarLoopResult]: At program point L14-2(line 14) the Hoare annotation is: (= 1 (select |#valid| |~#a~0.base|)) [2020-07-08 16:24:25,643 INFO L264 CegarLoopResult]: At program point L14-3(line 14) the Hoare annotation is: (and (not (= |~#b~0.base| |~#a~0.base|)) (= 1 (select |#valid| |~#a~0.base|))) [2020-07-08 16:24:25,644 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#a~0.base| |old(~#a~0.base)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#valid| |old(#valid)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |old(#length)| |#length|)) [2020-07-08 16:24:25,644 INFO L264 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: (and (not (= |~#b~0.base| |~#a~0.base|)) (= 1 (select |#valid| |~#a~0.base|))) [2020-07-08 16:24:25,644 INFO L264 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: (and (not (= |~#b~0.base| |~#a~0.base|)) (= 1 (select |#valid| |~#a~0.base|))) [2020-07-08 16:24:25,644 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (not (= |~#b~0.base| |~#a~0.base|)) (= 1 (select |#valid| |~#a~0.base|))) [2020-07-08 16:24:25,645 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-08 16:24:25,645 INFO L264 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: (and (not (= |~#b~0.base| |~#a~0.base|)) (= 1 (select |#valid| |~#a~0.base|))) [2020-07-08 16:24:25,645 INFO L271 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-07-08 16:24:25,645 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 16 19) the Hoare annotation is: true [2020-07-08 16:24:25,645 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 16 19) the Hoare annotation is: true [2020-07-08 16:24:25,645 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 16 19) the Hoare annotation is: true [2020-07-08 16:24:25,661 INFO L163 areAnnotationChecker]: CFG has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-08 16:24:25,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 04:24:25 BoogieIcfgContainer [2020-07-08 16:24:25,681 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 16:24:25,684 INFO L168 Benchmark]: Toolchain (without parser) took 2725.36 ms. Allocated memory was 144.7 MB in the beginning and 247.5 MB in the end (delta: 102.8 MB). Free memory was 101.6 MB in the beginning and 210.0 MB in the end (delta: -108.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-08 16:24:25,686 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 144.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-08 16:24:25,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.39 ms. Allocated memory is still 144.7 MB. Free memory was 101.4 MB in the beginning and 91.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-08 16:24:25,690 INFO L168 Benchmark]: Boogie Preprocessor took 126.70 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 91.6 MB in the beginning and 180.4 MB in the end (delta: -88.8 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-08 16:24:25,691 INFO L168 Benchmark]: RCFGBuilder took 371.28 ms. Allocated memory is still 201.9 MB. Free memory was 180.4 MB in the beginning and 163.3 MB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 7.1 GB. [2020-07-08 16:24:25,692 INFO L168 Benchmark]: TraceAbstraction took 1957.32 ms. Allocated memory was 201.9 MB in the beginning and 247.5 MB in the end (delta: 45.6 MB). Free memory was 162.7 MB in the beginning and 210.0 MB in the end (delta: -47.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-08 16:24:25,704 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 0.23 ms. Allocated memory is still 144.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 257.39 ms. Allocated memory is still 144.7 MB. Free memory was 101.4 MB in the beginning and 91.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.70 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 91.6 MB in the beginning and 180.4 MB in the end (delta: -88.8 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 371.28 ms. Allocated memory is still 201.9 MB. Free memory was 180.4 MB in the beginning and 163.3 MB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1957.32 ms. Allocated memory was 201.9 MB in the beginning and 247.5 MB in the end (delta: 45.6 MB). Free memory was 162.7 MB in the beginning and 210.0 MB in the end (delta: -47.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: (a == b || a == b) || !(1 == \valid[a]) - ProcedureContractResult [Line: 4]: Procedure Contract for equal Derived contract for procedure equal: ((b == a || (!(a == b) && !(a == b))) || a == b) || !(1 == \valid[a]) - ProcedureContractResult [Line: 16]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 13 SDtfs, 31 SDslu, 38 SDs, 0 SdLazy, 42 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 24 PreInvPairs, 31 NumberOfFragments, 213 HoareAnnotationTreeSize, 24 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 24 FomulaSimplificationsInter, 371 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...