/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/oomInt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:28:44,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:28:44,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:28:44,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:28:44,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:28:44,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:28:44,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:28:44,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:28:44,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:28:44,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:28:44,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:28:44,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:28:44,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:28:44,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:28:44,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:28:44,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:28:44,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:28:44,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:28:44,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:28:44,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:28:44,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:28:44,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:28:44,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:28:44,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:28:44,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:28:44,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:28:44,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:28:44,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:28:44,472 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 22:28:44,494 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:28:44,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:28:44,499 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:28:44,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:28:44,499 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:28:44,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:28:44,499 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:28:44,500 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:28:44,500 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:28:44,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:28:44,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:28:44,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:28:44,501 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:28:44,501 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:28:44,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:28:44,501 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:28:44,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:28:44,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:28:44,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:28:44,502 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:28:44,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:28:44,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:28:44,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:28:44,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:28:44,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:28:44,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:28:44,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:28:44,503 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:28:44,504 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:28:44,504 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:28:44,759 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:28:44,778 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:28:44,781 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:28:44,783 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:28:44,783 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:28:44,784 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/oomInt.i [2020-07-17 22:28:44,861 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cff037b08/39d476d2e51d400cba8f8be59b334cc4/FLAGca6120b4a [2020-07-17 22:28:45,290 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:28:45,291 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/oomInt.i [2020-07-17 22:28:45,298 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cff037b08/39d476d2e51d400cba8f8be59b334cc4/FLAGca6120b4a [2020-07-17 22:28:45,682 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cff037b08/39d476d2e51d400cba8f8be59b334cc4 [2020-07-17 22:28:45,693 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:28:45,696 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:28:45,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:28:45,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:28:45,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:28:45,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:28:45" (1/1) ... [2020-07-17 22:28:45,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dedb3ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:45, skipping insertion in model container [2020-07-17 22:28:45,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:28:45" (1/1) ... [2020-07-17 22:28:45,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:28:45,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:28:45,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:28:45,894 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:28:45,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:28:45,922 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:28:45,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:45 WrapperNode [2020-07-17 22:28:45,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:28:45,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:28:45,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:28:45,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:28:45,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:45" (1/1) ... [2020-07-17 22:28:45,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:45" (1/1) ... [2020-07-17 22:28:45,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:45" (1/1) ... [2020-07-17 22:28:45,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:45" (1/1) ... [2020-07-17 22:28:45,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:45" (1/1) ... [2020-07-17 22:28:45,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:45" (1/1) ... [2020-07-17 22:28:45,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:45" (1/1) ... [2020-07-17 22:28:45,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:28:45,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:28:45,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:28:45,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:28:45,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:45" (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 [2020-07-17 22:28:46,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:28:46,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:28:46,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 22:28:46,088 INFO L138 BoogieDeclarations]: Found implementation of procedure abs_int [2020-07-17 22:28:46,088 INFO L138 BoogieDeclarations]: Found implementation of procedure firstFunction [2020-07-17 22:28:46,088 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:28:46,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:28:46,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 22:28:46,089 INFO L130 BoogieDeclarations]: Found specification of procedure abs_int [2020-07-17 22:28:46,089 INFO L130 BoogieDeclarations]: Found specification of procedure firstFunction [2020-07-17 22:28:46,089 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:28:46,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:28:46,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:28:46,323 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:28:46,323 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-17 22:28:46,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:28:46 BoogieIcfgContainer [2020-07-17 22:28:46,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:28:46,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:28:46,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:28:46,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:28:46,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:28:45" (1/3) ... [2020-07-17 22:28:46,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6d636c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:28:46, skipping insertion in model container [2020-07-17 22:28:46,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:45" (2/3) ... [2020-07-17 22:28:46,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6d636c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:28:46, skipping insertion in model container [2020-07-17 22:28:46,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:28:46" (3/3) ... [2020-07-17 22:28:46,336 INFO L109 eAbstractionObserver]: Analyzing ICFG oomInt.i [2020-07-17 22:28:46,349 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:28:46,356 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:28:46,372 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:28:46,396 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:28:46,396 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:28:46,396 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:28:46,397 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:28:46,397 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:28:46,397 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:28:46,397 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:28:46,397 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:28:46,417 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-07-17 22:28:46,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-17 22:28:46,424 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:28:46,425 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:28:46,425 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:28:46,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:28:46,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1310527286, now seen corresponding path program 1 times [2020-07-17 22:28:46,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:28:46,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973326287] [2020-07-17 22:28:46,445 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:28:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:28:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:28:46,771 INFO L280 TraceCheckUtils]: 0: Hoare triple {41#(= ~p~0 |old(~p~0)|)} ~p~0 := 0; {28#true} is VALID [2020-07-17 22:28:46,772 INFO L280 TraceCheckUtils]: 1: Hoare triple {28#true} assume true; {28#true} is VALID [2020-07-17 22:28:46,772 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {28#true} {28#true} #29#return; {28#true} is VALID [2020-07-17 22:28:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:28:46,898 INFO L280 TraceCheckUtils]: 0: Hoare triple {28#true} ~i := #in~i; {42#(or (= |abs_int_#in~i| abs_int_~i) (= 0 (+ abs_int_~i 3)))} is VALID [2020-07-17 22:28:46,900 INFO L280 TraceCheckUtils]: 1: Hoare triple {42#(or (= |abs_int_#in~i| abs_int_~i) (= 0 (+ abs_int_~i 3)))} assume ~i < 0;#res := -~i; {43#(or (not (= 0 (+ |abs_int_#in~i| 3))) (<= 3 |abs_int_#res|))} is VALID [2020-07-17 22:28:46,902 INFO L280 TraceCheckUtils]: 2: Hoare triple {43#(or (not (= 0 (+ |abs_int_#in~i| 3))) (<= 3 |abs_int_#res|))} assume true; {43#(or (not (= 0 (+ |abs_int_#in~i| 3))) (<= 3 |abs_int_#res|))} is VALID [2020-07-17 22:28:46,905 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {43#(or (not (= 0 (+ |abs_int_#in~i| 3))) (<= 3 |abs_int_#res|))} {28#true} #33#return; {37#(<= 1 |firstFunction_#t~ret0|)} is VALID [2020-07-17 22:28:46,910 INFO L263 TraceCheckUtils]: 0: Hoare triple {28#true} call ULTIMATE.init(); {41#(= ~p~0 |old(~p~0)|)} is VALID [2020-07-17 22:28:46,911 INFO L280 TraceCheckUtils]: 1: Hoare triple {41#(= ~p~0 |old(~p~0)|)} ~p~0 := 0; {28#true} is VALID [2020-07-17 22:28:46,912 INFO L280 TraceCheckUtils]: 2: Hoare triple {28#true} assume true; {28#true} is VALID [2020-07-17 22:28:46,912 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {28#true} {28#true} #29#return; {28#true} is VALID [2020-07-17 22:28:46,913 INFO L263 TraceCheckUtils]: 4: Hoare triple {28#true} call #t~ret1 := main(); {28#true} is VALID [2020-07-17 22:28:46,913 INFO L263 TraceCheckUtils]: 5: Hoare triple {28#true} call firstFunction(); {28#true} is VALID [2020-07-17 22:28:46,914 INFO L263 TraceCheckUtils]: 6: Hoare triple {28#true} call #t~ret0 := abs_int(-3); {28#true} is VALID [2020-07-17 22:28:46,916 INFO L280 TraceCheckUtils]: 7: Hoare triple {28#true} ~i := #in~i; {42#(or (= |abs_int_#in~i| abs_int_~i) (= 0 (+ abs_int_~i 3)))} is VALID [2020-07-17 22:28:46,918 INFO L280 TraceCheckUtils]: 8: Hoare triple {42#(or (= |abs_int_#in~i| abs_int_~i) (= 0 (+ abs_int_~i 3)))} assume ~i < 0;#res := -~i; {43#(or (not (= 0 (+ |abs_int_#in~i| 3))) (<= 3 |abs_int_#res|))} is VALID [2020-07-17 22:28:46,920 INFO L280 TraceCheckUtils]: 9: Hoare triple {43#(or (not (= 0 (+ |abs_int_#in~i| 3))) (<= 3 |abs_int_#res|))} assume true; {43#(or (not (= 0 (+ |abs_int_#in~i| 3))) (<= 3 |abs_int_#res|))} is VALID [2020-07-17 22:28:46,926 INFO L275 TraceCheckUtils]: 10: Hoare quadruple {43#(or (not (= 0 (+ |abs_int_#in~i| 3))) (<= 3 |abs_int_#res|))} {28#true} #33#return; {37#(<= 1 |firstFunction_#t~ret0|)} is VALID [2020-07-17 22:28:46,928 INFO L280 TraceCheckUtils]: 11: Hoare triple {37#(<= 1 |firstFunction_#t~ret0|)} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647;~p~0 := #t~ret0;havoc #t~ret0; {38#(<= 1 ~p~0)} is VALID [2020-07-17 22:28:46,932 INFO L263 TraceCheckUtils]: 12: Hoare triple {38#(<= 1 ~p~0)} call __VERIFIER_assert((if ~p~0 >= 0 then 1 else 0)); {39#(not (= 0 |__VERIFIER_assert_#in~i|))} is VALID [2020-07-17 22:28:46,934 INFO L280 TraceCheckUtils]: 13: Hoare triple {39#(not (= 0 |__VERIFIER_assert_#in~i|))} ~i := #in~i; {40#(not (= 0 __VERIFIER_assert_~i))} is VALID [2020-07-17 22:28:46,935 INFO L280 TraceCheckUtils]: 14: Hoare triple {40#(not (= 0 __VERIFIER_assert_~i))} assume 0 == ~i; {29#false} is VALID [2020-07-17 22:28:46,936 INFO L280 TraceCheckUtils]: 15: Hoare triple {29#false} assume !false; {29#false} is VALID [2020-07-17 22:28:46,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:28:46,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973326287] [2020-07-17 22:28:46,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:28:46,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-17 22:28:46,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367172126] [2020-07-17 22:28:46,958 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-07-17 22:28:46,965 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:28:46,971 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-17 22:28:47,017 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:28:47,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 22:28:47,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:28:47,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 22:28:47,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-07-17 22:28:47,031 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 9 states. [2020-07-17 22:28:47,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:28:47,497 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2020-07-17 22:28:47,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-17 22:28:47,498 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-07-17 22:28:47,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:28:47,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-17 22:28:47,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 33 transitions. [2020-07-17 22:28:47,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-17 22:28:47,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 33 transitions. [2020-07-17 22:28:47,519 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 33 transitions. [2020-07-17 22:28:47,568 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:28:47,575 INFO L225 Difference]: With dead ends: 33 [2020-07-17 22:28:47,576 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 22:28:47,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-07-17 22:28:47,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 22:28:47,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 22:28:47,605 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:28:47,606 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-17 22:28:47,606 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-17 22:28:47,606 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-17 22:28:47,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:28:47,607 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-17 22:28:47,607 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:28:47,608 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:28:47,608 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:28:47,608 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-17 22:28:47,608 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-17 22:28:47,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:28:47,609 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-17 22:28:47,609 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:28:47,609 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:28:47,609 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:28:47,610 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:28:47,610 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:28:47,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 22:28:47,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 22:28:47,612 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-07-17 22:28:47,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:28:47,613 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 22:28:47,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 22:28:47,613 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:28:47,613 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:28:47,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:28:47,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 22:28:47,661 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-17 22:28:47,662 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2020-07-17 22:28:47,662 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-17 22:28:47,662 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-17 22:28:47,662 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 22:28:47,662 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 22:28:47,662 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-17 22:28:47,663 INFO L268 CegarLoopResult]: For program point abs_intEXIT(lines 16 25) no Hoare annotation was computed. [2020-07-17 22:28:47,663 INFO L271 CegarLoopResult]: At program point abs_intENTRY(lines 16 25) the Hoare annotation is: true [2020-07-17 22:28:47,663 INFO L268 CegarLoopResult]: For program point L18(lines 18 24) no Hoare annotation was computed. [2020-07-17 22:28:47,663 INFO L268 CegarLoopResult]: For program point abs_intFINAL(lines 16 25) no Hoare annotation was computed. [2020-07-17 22:28:47,663 INFO L264 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (<= 1 ~p~0) [2020-07-17 22:28:47,664 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-07-17 22:28:47,664 INFO L264 CegarLoopResult]: At program point firstFunctionENTRY(lines 27 31) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2020-07-17 22:28:47,664 INFO L268 CegarLoopResult]: For program point firstFunctionFINAL(lines 27 31) no Hoare annotation was computed. [2020-07-17 22:28:47,664 INFO L268 CegarLoopResult]: For program point firstFunctionEXIT(lines 27 31) no Hoare annotation was computed. [2020-07-17 22:28:47,664 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 33 36) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2020-07-17 22:28:47,664 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 33 36) no Hoare annotation was computed. [2020-07-17 22:28:47,665 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 33 36) no Hoare annotation was computed. [2020-07-17 22:28:47,665 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 12) the Hoare annotation is: true [2020-07-17 22:28:47,665 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-07-17 22:28:47,665 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 12) no Hoare annotation was computed. [2020-07-17 22:28:47,665 INFO L268 CegarLoopResult]: For program point L8(lines 8 11) no Hoare annotation was computed. [2020-07-17 22:28:47,665 INFO L268 CegarLoopResult]: For program point L8-2(lines 6 12) no Hoare annotation was computed. [2020-07-17 22:28:47,666 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2020-07-17 22:28:47,670 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:28:47,672 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-17 22:28:47,672 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-17 22:28:47,672 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:28:47,673 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-17 22:28:47,673 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:28:47,673 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:28:47,674 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-17 22:28:47,674 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-17 22:28:47,674 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-17 22:28:47,674 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:28:47,674 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-17 22:28:47,674 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-17 22:28:47,675 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:28:47,675 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:28:47,675 WARN L170 areAnnotationChecker]: abs_intFINAL has no Hoare annotation [2020-07-17 22:28:47,675 WARN L170 areAnnotationChecker]: firstFunctionFINAL has no Hoare annotation [2020-07-17 22:28:47,676 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:28:47,676 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2020-07-17 22:28:47,676 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2020-07-17 22:28:47,676 WARN L170 areAnnotationChecker]: L8-2 has no Hoare annotation [2020-07-17 22:28:47,677 WARN L170 areAnnotationChecker]: abs_intEXIT has no Hoare annotation [2020-07-17 22:28:47,677 WARN L170 areAnnotationChecker]: firstFunctionFINAL has no Hoare annotation [2020-07-17 22:28:47,677 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-17 22:28:47,677 WARN L170 areAnnotationChecker]: firstFunctionEXIT has no Hoare annotation [2020-07-17 22:28:47,678 INFO L163 areAnnotationChecker]: CFG has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-17 22:28:47,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:28:47 BoogieIcfgContainer [2020-07-17 22:28:47,681 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:28:47,686 INFO L168 Benchmark]: Toolchain (without parser) took 1988.53 ms. Allocated memory was 142.1 MB in the beginning and 235.4 MB in the end (delta: 93.3 MB). Free memory was 103.6 MB in the beginning and 167.2 MB in the end (delta: -63.6 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. [2020-07-17 22:28:47,688 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 142.1 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 22:28:47,690 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.10 ms. Allocated memory is still 142.1 MB. Free memory was 103.2 MB in the beginning and 93.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-07-17 22:28:47,692 INFO L168 Benchmark]: Boogie Preprocessor took 23.51 ms. Allocated memory is still 142.1 MB. Free memory was 93.8 MB in the beginning and 92.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-07-17 22:28:47,693 INFO L168 Benchmark]: RCFGBuilder took 380.93 ms. Allocated memory was 142.1 MB in the beginning and 203.9 MB in the end (delta: 61.9 MB). Free memory was 92.4 MB in the beginning and 168.2 MB in the end (delta: -75.8 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-07-17 22:28:47,694 INFO L168 Benchmark]: TraceAbstraction took 1351.03 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 167.5 MB in the beginning and 167.2 MB in the end (delta: 292.3 kB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2020-07-17 22:28:47,709 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 142.1 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 226.10 ms. Allocated memory is still 142.1 MB. Free memory was 103.2 MB in the beginning and 93.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.51 ms. Allocated memory is still 142.1 MB. Free memory was 93.8 MB in the beginning and 92.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 380.93 ms. Allocated memory was 142.1 MB in the beginning and 203.9 MB in the end (delta: 61.9 MB). Free memory was 92.4 MB in the beginning and 168.2 MB in the end (delta: -75.8 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1351.03 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 167.5 MB in the beginning and 167.2 MB in the end (delta: 292.3 kB). Peak memory consumption was 31.7 MB. 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 16 SDtfs, 24 SDslu, 71 SDs, 0 SdLazy, 58 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 8 LocationsWithAnnotation, 8 PreInvPairs, 8 NumberOfFragments, 16 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 20 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 795 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...