java -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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/array-tiling/poly2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 16:30:33,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 16:30:33,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 16:30:33,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 16:30:33,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 16:30:33,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 16:30:33,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 16:30:33,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 16:30:33,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 16:30:33,314 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 16:30:33,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 16:30:33,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 16:30:33,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 16:30:33,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 16:30:33,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 16:30:33,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 16:30:33,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 16:30:33,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 16:30:33,323 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 16:30:33,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 16:30:33,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 16:30:33,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 16:30:33,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 16:30:33,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 16:30:33,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 16:30:33,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 16:30:33,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 16:30:33,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 16:30:33,334 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 16:30:33,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 16:30:33,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 16:30:33,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 16:30:33,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 16:30:33,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 16:30:33,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 16:30:33,339 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 16:30:33,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 16:30:33,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 16:30:33,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 16:30:33,342 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 16:30:33,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 16:30:33,343 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-02 16:30:33,358 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 16:30:33,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 16:30:33,358 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-02 16:30:33,359 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-02 16:30:33,359 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-02 16:30:33,360 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-02 16:30:33,360 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-02 16:30:33,360 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-02 16:30:33,360 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-02 16:30:33,360 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-02 16:30:33,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 16:30:33,361 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 16:30:33,361 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 16:30:33,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 16:30:33,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 16:30:33,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 16:30:33,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 16:30:33,362 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 16:30:33,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 16:30:33,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 16:30:33,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 16:30:33,363 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-02 16:30:33,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 16:30:33,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 16:30:33,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 16:30:33,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 16:30:33,364 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-02 16:30:33,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 16:30:33,365 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 16:30:33,365 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-02 16:30:33,393 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 16:30:33,407 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 16:30:33,410 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 16:30:33,411 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 16:30:33,412 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 16:30:33,413 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/poly2.c [2019-10-02 16:30:33,478 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28f4e07dc/e8e64c80071c4460a177987a88c041ab/FLAG8cff82881 [2019-10-02 16:30:33,948 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 16:30:33,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/poly2.c [2019-10-02 16:30:33,955 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28f4e07dc/e8e64c80071c4460a177987a88c041ab/FLAG8cff82881 [2019-10-02 16:30:34,348 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28f4e07dc/e8e64c80071c4460a177987a88c041ab [2019-10-02 16:30:34,358 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 16:30:34,359 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 16:30:34,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 16:30:34,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 16:30:34,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 16:30:34,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 04:30:34" (1/1) ... [2019-10-02 16:30:34,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cfed6bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:34, skipping insertion in model container [2019-10-02 16:30:34,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 04:30:34" (1/1) ... [2019-10-02 16:30:34,376 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 16:30:34,393 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 16:30:34,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 16:30:34,600 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 16:30:34,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 16:30:34,630 INFO L192 MainTranslator]: Completed translation [2019-10-02 16:30:34,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:34 WrapperNode [2019-10-02 16:30:34,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 16:30:34,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 16:30:34,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 16:30:34,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 16:30:34,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:34" (1/1) ... [2019-10-02 16:30:34,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:34" (1/1) ... [2019-10-02 16:30:34,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:34" (1/1) ... [2019-10-02 16:30:34,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:34" (1/1) ... [2019-10-02 16:30:34,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:34" (1/1) ... [2019-10-02 16:30:34,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:34" (1/1) ... [2019-10-02 16:30:34,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:34" (1/1) ... [2019-10-02 16:30:34,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 16:30:34,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 16:30:34,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 16:30:34,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 16:30:34,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:34" (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 [2019-10-02 16:30:34,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 16:30:34,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 16:30:34,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-02 16:30:34,822 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 16:30:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 16:30:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-02 16:30:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-02 16:30:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 16:30:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 16:30:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 16:30:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 16:30:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 16:30:34,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 16:30:34,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 16:30:34,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 16:30:34,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 16:30:35,147 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 16:30:35,148 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-02 16:30:35,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 04:30:35 BoogieIcfgContainer [2019-10-02 16:30:35,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 16:30:35,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 16:30:35,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 16:30:35,155 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 16:30:35,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 04:30:34" (1/3) ... [2019-10-02 16:30:35,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eaf3056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 04:30:35, skipping insertion in model container [2019-10-02 16:30:35,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:34" (2/3) ... [2019-10-02 16:30:35,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eaf3056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 04:30:35, skipping insertion in model container [2019-10-02 16:30:35,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 04:30:35" (3/3) ... [2019-10-02 16:30:35,158 INFO L109 eAbstractionObserver]: Analyzing ICFG poly2.c [2019-10-02 16:30:35,167 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 16:30:35,175 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 16:30:35,192 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 16:30:35,220 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 16:30:35,220 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-02 16:30:35,220 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 16:30:35,220 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 16:30:35,220 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 16:30:35,220 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 16:30:35,221 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 16:30:35,221 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 16:30:35,234 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-10-02 16:30:35,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-02 16:30:35,243 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:30:35,244 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 16:30:35,246 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:30:35,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:30:35,250 INFO L82 PathProgramCache]: Analyzing trace with hash -718269197, now seen corresponding path program 1 times [2019-10-02 16:30:35,252 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:30:35,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:35,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:30:35,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:35,304 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:30:35,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:30:35,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 16:30:35,410 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 16:30:35,411 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 16:30:35,411 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:30:35,416 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 16:30:35,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 16:30:35,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 16:30:35,435 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-10-02 16:30:35,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:30:35,454 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2019-10-02 16:30:35,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 16:30:35,456 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-02 16:30:35,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:30:35,466 INFO L225 Difference]: With dead ends: 28 [2019-10-02 16:30:35,466 INFO L226 Difference]: Without dead ends: 23 [2019-10-02 16:30:35,468 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 16:30:35,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-10-02 16:30:35,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-10-02 16:30:35,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-02 16:30:35,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2019-10-02 16:30:35,513 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 16 [2019-10-02 16:30:35,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:30:35,514 INFO L475 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2019-10-02 16:30:35,514 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 16:30:35,514 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2019-10-02 16:30:35,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-02 16:30:35,515 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:30:35,515 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 16:30:35,516 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:30:35,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:30:35,516 INFO L82 PathProgramCache]: Analyzing trace with hash 506468199, now seen corresponding path program 1 times [2019-10-02 16:30:35,517 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:30:35,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:35,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:30:35,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:35,519 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:30:35,545 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-10-02 16:30:35,545 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-10-02 16:30:35,546 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-02 16:30:35,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:30:35,611 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-10-02 16:30:35,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Exception during sending of exit command (exit): Stream closed [2019-10-02 16:30:35,654 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-10-02 16:30:35,655 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-10-02 16:30:35,656 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 16:30:35,657 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 16:30:35,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:30:35,704 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-10-02 16:30:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:30:35,752 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-02 16:30:35,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 16:30:35,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 16:30:35,799 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-02 16:30:35,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 16:30:35,828 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-02 16:30:35,828 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-02 16:30:35,829 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:30:35,830 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 16:30:35,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 16:30:35,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-02 16:30:35,832 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 3 states. [2019-10-02 16:30:35,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:30:35,907 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2019-10-02 16:30:35,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 16:30:35,908 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-10-02 16:30:35,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:30:35,909 INFO L225 Difference]: With dead ends: 25 [2019-10-02 16:30:35,910 INFO L226 Difference]: Without dead ends: 25 [2019-10-02 16:30:35,911 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-02 16:30:35,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-02 16:30:35,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2019-10-02 16:30:35,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-10-02 16:30:35,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2019-10-02 16:30:35,918 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 16 [2019-10-02 16:30:35,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:30:35,919 INFO L475 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2019-10-02 16:30:35,919 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 16:30:35,919 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2019-10-02 16:30:35,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-02 16:30:35,920 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:30:35,921 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 16:30:35,921 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:30:35,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:30:35,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1419313573, now seen corresponding path program 1 times [2019-10-02 16:30:35,922 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:30:35,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:35,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:30:35,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:35,924 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:30:35,937 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-10-02 16:30:35,937 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-10-02 16:30:35,937 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-02 16:30:35,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:30:35,979 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-10-02 16:30:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:30:36,001 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2019-10-02 16:30:36,006 INFO L207 CegarAbsIntRunner]: [0], [1], [5], [8], [14], [16], [18], [22], [28], [36], [44], [57], [60], [62], [68], [69], [70], [72] [2019-10-02 16:30:36,042 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-02 16:30:36,042 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-02 16:30:36,117 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-02 16:30:36,120 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Performed 24 root evaluator evaluations with a maximum evaluation depth of 3. Performed 24 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 24 variables. [2019-10-02 16:30:36,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:30:36,124 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-02 16:30:36,172 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 77.5% of their original sizes. [2019-10-02 16:30:36,173 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-02 16:30:36,185 INFO L420 sIntCurrentIteration]: We unified 17 AI predicates to 17 [2019-10-02 16:30:36,185 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-02 16:30:36,186 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 16:30:36,186 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-02 16:30:36,186 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:30:36,187 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-02 16:30:36,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-02 16:30:36,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-02 16:30:36,188 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 4 states. [2019-10-02 16:30:36,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:30:36,192 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2019-10-02 16:30:36,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 16:30:36,193 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-10-02 16:30:36,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:30:36,193 INFO L225 Difference]: With dead ends: 7 [2019-10-02 16:30:36,193 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 16:30:36,194 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-02 16:30:36,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 16:30:36,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 16:30:36,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 16:30:36,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 16:30:36,195 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-10-02 16:30:36,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:30:36,195 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 16:30:36,195 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-02 16:30:36,196 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 16:30:36,196 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 16:30:36,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 04:30:36 BoogieIcfgContainer [2019-10-02 16:30:36,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 16:30:36,204 INFO L168 Benchmark]: Toolchain (without parser) took 1843.62 ms. Allocated memory was 139.5 MB in the beginning and 199.2 MB in the end (delta: 59.8 MB). Free memory was 87.2 MB in the beginning and 98.9 MB in the end (delta: -11.7 MB). Peak memory consumption was 48.1 MB. Max. memory is 7.1 GB. [2019-10-02 16:30:36,205 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 16:30:36,206 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.72 ms. Allocated memory is still 139.5 MB. Free memory was 86.7 MB in the beginning and 76.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2019-10-02 16:30:36,208 INFO L168 Benchmark]: Boogie Preprocessor took 128.98 ms. Allocated memory was 139.5 MB in the beginning and 199.2 MB in the end (delta: 59.8 MB). Free memory was 76.4 MB in the beginning and 175.6 MB in the end (delta: -99.2 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-10-02 16:30:36,208 INFO L168 Benchmark]: RCFGBuilder took 383.20 ms. Allocated memory is still 199.2 MB. Free memory was 175.6 MB in the beginning and 160.8 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2019-10-02 16:30:36,209 INFO L168 Benchmark]: TraceAbstraction took 1050.90 ms. Allocated memory is still 199.2 MB. Free memory was 160.2 MB in the beginning and 98.9 MB in the end (delta: 61.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. [2019-10-02 16:30:36,214 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 270.72 ms. Allocated memory is still 139.5 MB. Free memory was 86.7 MB in the beginning and 76.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.98 ms. Allocated memory was 139.5 MB in the beginning and 199.2 MB in the end (delta: 59.8 MB). Free memory was 76.4 MB in the beginning and 175.6 MB in the end (delta: -99.2 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 383.20 ms. Allocated memory is still 199.2 MB. Free memory was 175.6 MB in the beginning and 160.8 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1050.90 ms. Allocated memory is still 199.2 MB. Free memory was 160.2 MB in the beginning and 98.9 MB in the end (delta: 61.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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 4 procedures, 28 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 60 SDtfs, 5 SDslu, 13 SDs, 0 SdLazy, 13 SolverSat, 1 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9558823529411765 AbsIntWeakeningRatio, 0.9411764705882353 AbsIntAvgWeakeningVarsNumRemoved, 1.2941176470588236 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 795 SizeOfPredicates, 3 NumberOfNonLiveVariables, 81 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...