/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/loop-acceleration/simple_3-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 04:15:25,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 04:15:25,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 04:15:25,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-24 04:15:25,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 04:15:25,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 04:15:25,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 04:15:25,225 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 04:15:25,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 04:15:25,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 04:15:25,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 04:15:25,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 04:15:25,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 04:15:25,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 04:15:25,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 04:15:25,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 04:15:25,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 04:15:25,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 04:15:25,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 04:15:25,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 04:15:25,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 04:15:25,260 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 04:15:25,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 04:15:25,261 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 04:15:25,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 04:15:25,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 04:15:25,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 04:15:25,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 04:15:25,267 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 04:15:25,281 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 04:15:25,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 04:15:25,282 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 04:15:25,283 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 04:15:25,283 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 04:15:25,283 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 04:15:25,283 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 04:15:25,283 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 04:15:25,284 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 04:15:25,284 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 04:15:25,284 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 04:15:25,284 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 04:15:25,284 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 04:15:25,285 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 04:15:25,285 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 04:15:25,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 04:15:25,286 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 04:15:25,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 04:15:25,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 04:15:25,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 04:15:25,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 04:15:25,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 04:15:25,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 04:15:25,287 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 04:15:25,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 04:15:25,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 04:15:25,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 04:15:25,288 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 04:15:25,288 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 04:15:25,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 04:15:25,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 04:15:25,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 04:15:25,289 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 04:15:25,289 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 04:15:25,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 04:15:25,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 04:15:25,290 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 04:15:25,290 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 04:15:25,563 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 04:15:25,576 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 04:15:25,580 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 04:15:25,581 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 04:15:25,581 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 04:15:25,582 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_3-2.c [2019-11-24 04:15:25,642 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42453b128/7aee24c6fcbc494fb4736e2218ce6990/FLAG6a6605f13 [2019-11-24 04:15:26,083 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 04:15:26,084 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_3-2.c [2019-11-24 04:15:26,090 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42453b128/7aee24c6fcbc494fb4736e2218ce6990/FLAG6a6605f13 [2019-11-24 04:15:26,480 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42453b128/7aee24c6fcbc494fb4736e2218ce6990 [2019-11-24 04:15:26,492 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 04:15:26,494 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 04:15:26,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 04:15:26,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 04:15:26,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 04:15:26,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:15:26" (1/1) ... [2019-11-24 04:15:26,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d618acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:26, skipping insertion in model container [2019-11-24 04:15:26,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:15:26" (1/1) ... [2019-11-24 04:15:26,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 04:15:26,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 04:15:26,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:15:26,719 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 04:15:26,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:15:26,749 INFO L208 MainTranslator]: Completed translation [2019-11-24 04:15:26,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:26 WrapperNode [2019-11-24 04:15:26,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 04:15:26,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 04:15:26,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 04:15:26,751 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 04:15:26,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:26" (1/1) ... [2019-11-24 04:15:26,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:26" (1/1) ... [2019-11-24 04:15:26,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 04:15:26,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 04:15:26,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 04:15:26,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 04:15:26,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:26" (1/1) ... [2019-11-24 04:15:26,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:26" (1/1) ... [2019-11-24 04:15:26,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:26" (1/1) ... [2019-11-24 04:15:26,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:26" (1/1) ... [2019-11-24 04:15:26,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:26" (1/1) ... [2019-11-24 04:15:26,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:26" (1/1) ... [2019-11-24 04:15:26,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:26" (1/1) ... [2019-11-24 04:15:26,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 04:15:26,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 04:15:26,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 04:15:26,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 04:15:26,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:26" (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 [2019-11-24 04:15:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 04:15:26,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 04:15:27,139 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 04:15:27,139 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-24 04:15:27,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:15:27 BoogieIcfgContainer [2019-11-24 04:15:27,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 04:15:27,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 04:15:27,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 04:15:27,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 04:15:27,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 04:15:26" (1/3) ... [2019-11-24 04:15:27,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fbef7bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:15:27, skipping insertion in model container [2019-11-24 04:15:27,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:26" (2/3) ... [2019-11-24 04:15:27,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fbef7bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:15:27, skipping insertion in model container [2019-11-24 04:15:27,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:15:27" (3/3) ... [2019-11-24 04:15:27,148 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_3-2.c [2019-11-24 04:15:27,158 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 04:15:27,164 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-24 04:15:27,175 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-24 04:15:27,197 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 04:15:27,197 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 04:15:27,198 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 04:15:27,198 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 04:15:27,198 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 04:15:27,198 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 04:15:27,198 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 04:15:27,198 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 04:15:27,210 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-11-24 04:15:27,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-24 04:15:27,215 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:15:27,216 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-24 04:15:27,217 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:15:27,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:15:27,223 INFO L82 PathProgramCache]: Analyzing trace with hash 982688, now seen corresponding path program 1 times [2019-11-24 04:15:27,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:15:27,231 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959116688] [2019-11-24 04:15:27,232 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:15:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:15:29,585 WARN L192 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 43 DAG size of output: 15 [2019-11-24 04:15:29,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:15:29,637 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959116688] [2019-11-24 04:15:29,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:15:29,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 04:15:29,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922934929] [2019-11-24 04:15:29,647 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-24 04:15:29,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:15:29,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-24 04:15:29,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-24 04:15:29,665 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 4 states. [2019-11-24 04:15:29,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:15:29,720 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-11-24 04:15:29,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-24 04:15:29,722 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-24 04:15:29,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:15:29,730 INFO L225 Difference]: With dead ends: 9 [2019-11-24 04:15:29,730 INFO L226 Difference]: Without dead ends: 0 [2019-11-24 04:15:29,734 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-24 04:15:29,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-24 04:15:29,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-24 04:15:29,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-24 04:15:29,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-24 04:15:29,762 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-24 04:15:29,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:15:29,762 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-24 04:15:29,762 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-24 04:15:29,763 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-24 04:15:29,763 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-24 04:15:29,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-24 04:15:29,823 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-24 04:15:29,823 INFO L440 ceAbstractionStarter]: At program point L15-2(lines 15 17) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 (let ((.cse0 (div ULTIMATE.start_main_~x~0 2))) (+ (* 2 .cse0) (* 4294967296 (div (+ (* .cse0 (- 2)) ULTIMATE.start_main_~x~0) 4294967296))))) (<= 0 ULTIMATE.start_main_~x~0)) [2019-11-24 04:15:29,824 INFO L444 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-11-24 04:15:29,824 INFO L440 ceAbstractionStarter]: At program point L5-2(lines 1 20) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= ULTIMATE.start_main_~x~0 (let ((.cse0 (div ULTIMATE.start_main_~x~0 2))) (+ (* 2 .cse0) (* 4294967296 (div (+ (* .cse0 (- 2)) ULTIMATE.start_main_~x~0) 4294967296))))) (<= 0 ULTIMATE.start_main_~x~0)) [2019-11-24 04:15:29,824 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-24 04:15:29,824 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-11-24 04:15:29,825 INFO L444 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-11-24 04:15:29,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 04:15:29 BoogieIcfgContainer [2019-11-24 04:15:29,842 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-24 04:15:29,844 INFO L168 Benchmark]: Toolchain (without parser) took 3349.29 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 101.4 MB in the beginning and 137.6 MB in the end (delta: -36.2 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2019-11-24 04:15:29,846 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-11-24 04:15:29,847 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.65 ms. Allocated memory is still 137.9 MB. Free memory was 101.2 MB in the beginning and 91.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-11-24 04:15:29,848 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.98 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 91.8 MB in the beginning and 181.0 MB in the end (delta: -89.2 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2019-11-24 04:15:29,850 INFO L168 Benchmark]: Boogie Preprocessor took 22.04 ms. Allocated memory is still 201.9 MB. Free memory was 181.0 MB in the beginning and 179.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-11-24 04:15:29,852 INFO L168 Benchmark]: RCFGBuilder took 257.99 ms. Allocated memory is still 201.9 MB. Free memory was 179.7 MB in the beginning and 168.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-11-24 04:15:29,853 INFO L168 Benchmark]: TraceAbstraction took 2700.61 ms. Allocated memory is still 201.9 MB. Free memory was 168.4 MB in the beginning and 137.6 MB in the end (delta: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. [2019-11-24 04:15:29,857 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 254.65 ms. Allocated memory is still 137.9 MB. Free memory was 101.2 MB in the beginning and 91.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 108.98 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 91.8 MB in the beginning and 181.0 MB in the end (delta: -89.2 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.04 ms. Allocated memory is still 201.9 MB. Free memory was 181.0 MB in the beginning and 179.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 257.99 ms. Allocated memory is still 201.9 MB. Free memory was 179.7 MB in the beginning and 168.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2700.61 ms. Allocated memory is still 201.9 MB. Free memory was 168.4 MB in the beginning and 137.6 MB in the end (delta: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 15]: Loop Invariant Derived loop invariant: x <= 2 * (x / 2) + 4294967296 * ((x / 2 * -2 + x) / 4294967296) && 0 <= x - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (!(0 == cond) && x <= 2 * (x / 2) + 4294967296 * ((x / 2 * -2 + x) / 4294967296)) && 0 <= x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 2 SDtfs, 5 SDslu, 1 SDs, 0 SdLazy, 4 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 50 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 84 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...