java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/loop-acceleration/array_true-unreach-call3_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 05:00:10,243 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 05:00:10,247 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 05:00:10,259 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 05:00:10,260 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 05:00:10,261 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 05:00:10,262 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 05:00:10,264 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 05:00:10,266 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 05:00:10,267 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 05:00:10,268 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 05:00:10,268 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 05:00:10,269 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 05:00:10,270 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 05:00:10,273 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 05:00:10,274 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 05:00:10,275 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 05:00:10,276 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 05:00:10,278 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 05:00:10,280 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 05:00:10,281 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 05:00:10,282 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 05:00:10,285 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 05:00:10,298 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 05:00:10,323 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 05:00:10,323 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 05:00:10,324 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 05:00:10,325 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 05:00:10,325 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 05:00:10,325 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 05:00:10,325 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 05:00:10,325 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 05:00:10,328 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 05:00:10,328 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 05:00:10,328 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 05:00:10,329 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 05:00:10,329 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 05:00:10,330 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 05:00:10,330 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 05:00:10,330 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 05:00:10,330 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 05:00:10,330 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 05:00:10,332 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 05:00:10,332 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 05:00:10,333 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 05:00:10,333 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 05:00:10,333 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 05:00:10,333 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 05:00:10,333 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 05:00:10,334 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 05:00:10,334 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 05:00:10,334 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 05:00:10,334 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 05:00:10,335 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 05:00:10,335 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 05:00:10,335 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 05:00:10,335 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 05:00:10,335 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 05:00:10,413 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 05:00:10,429 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 05:00:10,434 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 05:00:10,436 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 05:00:10,436 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 05:00:10,437 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/array_true-unreach-call3_true-termination.i [2018-11-07 05:00:10,501 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b79178f3/4b6d02eb65ed49af8ac862e4be6acd67/FLAG0f5db8439 [2018-11-07 05:00:10,951 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 05:00:10,952 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/array_true-unreach-call3_true-termination.i [2018-11-07 05:00:10,959 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b79178f3/4b6d02eb65ed49af8ac862e4be6acd67/FLAG0f5db8439 [2018-11-07 05:00:10,977 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b79178f3/4b6d02eb65ed49af8ac862e4be6acd67 [2018-11-07 05:00:10,992 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 05:00:10,994 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 05:00:10,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 05:00:10,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 05:00:10,999 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 05:00:11,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:00:10" (1/1) ... [2018-11-07 05:00:11,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70cac6dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:00:11, skipping insertion in model container [2018-11-07 05:00:11,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:00:10" (1/1) ... [2018-11-07 05:00:11,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 05:00:11,041 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 05:00:11,290 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 05:00:11,293 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 05:00:11,314 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 05:00:11,334 INFO L193 MainTranslator]: Completed translation [2018-11-07 05:00:11,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:00:11 WrapperNode [2018-11-07 05:00:11,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 05:00:11,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 05:00:11,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 05:00:11,336 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 05:00:11,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:00:11" (1/1) ... [2018-11-07 05:00:11,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:00:11" (1/1) ... [2018-11-07 05:00:11,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 05:00:11,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 05:00:11,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 05:00:11,364 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 05:00:11,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:00:11" (1/1) ... [2018-11-07 05:00:11,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:00:11" (1/1) ... [2018-11-07 05:00:11,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:00:11" (1/1) ... [2018-11-07 05:00:11,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:00:11" (1/1) ... [2018-11-07 05:00:11,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:00:11" (1/1) ... [2018-11-07 05:00:11,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:00:11" (1/1) ... [2018-11-07 05:00:11,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:00:11" (1/1) ... [2018-11-07 05:00:11,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 05:00:11,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 05:00:11,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 05:00:11,393 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 05:00:11,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:00:11" (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 [2018-11-07 05:00:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-07 05:00:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 05:00:11,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 05:00:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-07 05:00:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 05:00:11,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 05:00:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 05:00:11,554 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 05:00:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-07 05:00:11,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-07 05:00:11,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-07 05:00:11,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-07 05:00:12,005 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 05:00:12,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:00:12 BoogieIcfgContainer [2018-11-07 05:00:12,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 05:00:12,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 05:00:12,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 05:00:12,010 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 05:00:12,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:00:10" (1/3) ... [2018-11-07 05:00:12,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6759de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:00:12, skipping insertion in model container [2018-11-07 05:00:12,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:00:11" (2/3) ... [2018-11-07 05:00:12,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6759de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:00:12, skipping insertion in model container [2018-11-07 05:00:12,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:00:12" (3/3) ... [2018-11-07 05:00:12,014 INFO L112 eAbstractionObserver]: Analyzing ICFG array_true-unreach-call3_true-termination.i [2018-11-07 05:00:12,025 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 05:00:12,033 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 05:00:12,052 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 05:00:12,088 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 05:00:12,088 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 05:00:12,088 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 05:00:12,088 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 05:00:12,088 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 05:00:12,089 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 05:00:12,089 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 05:00:12,089 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 05:00:12,109 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-11-07 05:00:12,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-07 05:00:12,117 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 05:00:12,118 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 05:00:12,120 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 05:00:12,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 05:00:12,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1609639134, now seen corresponding path program 1 times [2018-11-07 05:00:12,128 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 05:00:12,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:00:12,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 05:00:12,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:00:12,179 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 05:00:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 05:00:12,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 05:00:12,255 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 05:00:12,255 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-07 05:00:12,255 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 05:00:12,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-07 05:00:12,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-07 05:00:12,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-07 05:00:12,278 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2018-11-07 05:00:12,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 05:00:12,303 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2018-11-07 05:00:12,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-07 05:00:12,305 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-07 05:00:12,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 05:00:12,313 INFO L225 Difference]: With dead ends: 50 [2018-11-07 05:00:12,313 INFO L226 Difference]: Without dead ends: 23 [2018-11-07 05:00:12,316 INFO L604 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 [2018-11-07 05:00:12,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-07 05:00:12,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-07 05:00:12,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-07 05:00:12,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2018-11-07 05:00:12,352 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 14 [2018-11-07 05:00:12,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 05:00:12,353 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2018-11-07 05:00:12,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-07 05:00:12,353 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-11-07 05:00:12,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-07 05:00:12,355 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 05:00:12,355 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 05:00:12,355 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 05:00:12,356 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 05:00:12,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1276177946, now seen corresponding path program 1 times [2018-11-07 05:00:12,356 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 05:00:12,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:00:12,358 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 05:00:12,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:00:12,358 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 05:00:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 05:00:12,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 05:00:12,439 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 05:00:12,440 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 05:00:12,440 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 05:00:12,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 05:00:12,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 05:00:12,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 05:00:12,443 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 3 states. [2018-11-07 05:00:12,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 05:00:12,542 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2018-11-07 05:00:12,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 05:00:12,543 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-11-07 05:00:12,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 05:00:12,545 INFO L225 Difference]: With dead ends: 45 [2018-11-07 05:00:12,546 INFO L226 Difference]: Without dead ends: 34 [2018-11-07 05:00:12,547 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 05:00:12,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-07 05:00:12,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 29. [2018-11-07 05:00:12,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-07 05:00:12,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2018-11-07 05:00:12,555 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 17 [2018-11-07 05:00:12,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 05:00:12,555 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2018-11-07 05:00:12,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 05:00:12,556 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2018-11-07 05:00:12,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-07 05:00:12,556 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 05:00:12,557 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 05:00:12,557 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 05:00:12,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 05:00:12,558 INFO L82 PathProgramCache]: Analyzing trace with hash 2114953933, now seen corresponding path program 1 times [2018-11-07 05:00:12,558 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 05:00:12,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:00:12,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 05:00:12,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:00:12,559 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 05:00:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 05:00:12,683 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 05:00:12,683 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 05:00:12,684 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 05:00:12,684 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 23 with the following transitions: [2018-11-07 05:00:12,687 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [6], [10], [13], [15], [16], [17], [19], [23], [27], [28], [31], [48], [51], [53], [59], [60], [61], [63] [2018-11-07 05:00:12,742 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 05:00:12,742 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 05:00:13,232 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 05:00:13,235 INFO L272 AbstractInterpreter]: Visited 20 different actions 56 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 16 variables. [2018-11-07 05:00:13,279 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 05:00:13,279 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 05:00:13,415 INFO L227 lantSequenceWeakener]: Weakened 20 states. On average, predicates are now at 74.27% of their original sizes. [2018-11-07 05:00:13,415 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 05:00:13,830 INFO L415 sIntCurrentIteration]: We unified 21 AI predicates to 21 [2018-11-07 05:00:13,830 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 05:00:13,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 05:00:13,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2018-11-07 05:00:13,832 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 05:00:13,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 05:00:13,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 05:00:13,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-07 05:00:13,834 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 10 states. [2018-11-07 05:00:14,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 05:00:14,607 INFO L93 Difference]: Finished difference Result 54 states and 63 transitions. [2018-11-07 05:00:14,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 05:00:14,608 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-11-07 05:00:14,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 05:00:14,608 INFO L225 Difference]: With dead ends: 54 [2018-11-07 05:00:14,608 INFO L226 Difference]: Without dead ends: 0 [2018-11-07 05:00:14,612 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2018-11-07 05:00:14,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-07 05:00:14,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-07 05:00:14,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-07 05:00:14,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-07 05:00:14,613 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2018-11-07 05:00:14,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 05:00:14,613 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-07 05:00:14,613 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 05:00:14,613 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-07 05:00:14,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-07 05:00:14,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-07 05:00:14,845 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 12 [2018-11-07 05:00:14,984 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-07 05:00:14,985 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-07 05:00:14,985 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-07 05:00:14,985 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-07 05:00:14,985 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-07 05:00:14,986 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-07 05:00:14,986 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-07 05:00:14,986 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 9 23) no Hoare annotation was computed. [2018-11-07 05:00:14,986 INFO L425 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-11-07 05:00:14,986 INFO L425 ceAbstractionStarter]: For program point L17-2(lines 17 21) no Hoare annotation was computed. [2018-11-07 05:00:14,986 INFO L425 ceAbstractionStarter]: For program point L17-4(lines 17 21) no Hoare annotation was computed. [2018-11-07 05:00:14,987 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 9 23) no Hoare annotation was computed. [2018-11-07 05:00:14,987 INFO L425 ceAbstractionStarter]: For program point L13-1(lines 13 15) no Hoare annotation was computed. [2018-11-07 05:00:14,987 INFO L421 ceAbstractionStarter]: At program point L17-5(lines 17 21) the Hoare annotation is: (and (not (= |main_~#A~0.base| 0)) (<= main_~i~0 (+ |main_~#A~0.offset| 1024)) (<= |main_~#A~0.offset| main_~i~0) (= |main_~#A~0.offset| 0)) [2018-11-07 05:00:14,987 INFO L421 ceAbstractionStarter]: At program point L17-6(lines 17 21) the Hoare annotation is: (and (not (= |main_~#A~0.base| 0)) (<= main_~i~0 (+ |main_~#A~0.offset| 1024)) (<= |main_~#A~0.offset| main_~i~0) (= |main_~#A~0.offset| 0)) [2018-11-07 05:00:14,988 INFO L425 ceAbstractionStarter]: For program point L13-3(lines 13 15) no Hoare annotation was computed. [2018-11-07 05:00:14,988 INFO L421 ceAbstractionStarter]: At program point L13-4(lines 13 15) the Hoare annotation is: (and (not (= |main_~#A~0.base| 0)) (<= main_~i~0 (+ |main_~#A~0.offset| 1024)) (<= |main_~#A~0.offset| main_~i~0) (= |main_~#A~0.offset| 0)) [2018-11-07 05:00:14,988 INFO L425 ceAbstractionStarter]: For program point L13-5(lines 13 15) no Hoare annotation was computed. [2018-11-07 05:00:14,988 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 9 23) the Hoare annotation is: true [2018-11-07 05:00:14,988 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-07 05:00:14,989 INFO L425 ceAbstractionStarter]: For program point L18(lines 18 20) no Hoare annotation was computed. [2018-11-07 05:00:14,989 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-11-07 05:00:14,989 INFO L425 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-11-07 05:00:14,989 INFO L425 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-11-07 05:00:14,989 INFO L425 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-11-07 05:00:14,989 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-07 05:00:14,990 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-07 05:00:14,990 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-07 05:00:14,990 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-07 05:00:14,990 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-07 05:00:14,990 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-07 05:00:15,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 05:00:15 BoogieIcfgContainer [2018-11-07 05:00:15,002 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 05:00:15,003 INFO L168 Benchmark]: Toolchain (without parser) took 4009.85 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -660.9 MB). Peak memory consumption was 92.0 MB. Max. memory is 7.1 GB. [2018-11-07 05:00:15,004 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 05:00:15,005 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-11-07 05:00:15,005 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.43 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 05:00:15,006 INFO L168 Benchmark]: Boogie Preprocessor took 28.75 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 05:00:15,007 INFO L168 Benchmark]: RCFGBuilder took 613.29 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -807.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2018-11-07 05:00:15,008 INFO L168 Benchmark]: TraceAbstraction took 2995.20 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 136.4 MB). Peak memory consumption was 136.4 MB. Max. memory is 7.1 GB. [2018-11-07 05:00:15,013 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 340.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 27.43 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.75 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 613.29 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -807.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2995.20 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 136.4 MB). Peak memory consumption was 136.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 17]: Loop Invariant Derived loop invariant: ((!(A == 0) && i <= A + 1024) && A <= i) && A == 0 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: ((!(A == 0) && i <= A + 1024) && A <= i) && A == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 locations, 1 error locations. SAFE Result, 2.9s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 66 SDtfs, 67 SDslu, 79 SDs, 0 SdLazy, 35 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9626984126984126 AbsIntWeakeningRatio, 0.5238095238095238 AbsIntAvgWeakeningVarsNumRemoved, 53.523809523809526 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 13 PreInvPairs, 21 NumberOfFragments, 53 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 8 FomulaSimplificationsInter, 372 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 1224 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...