/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/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-acceleration/array_3-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:07:04,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:07:04,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:07:04,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 22:07:04,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 22:07:04,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 22:07:04,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 22:07:04,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 22:07:04,091 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 22:07:04,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 22:07:04,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 22:07:04,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 22:07:04,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 22:07:04,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 22:07:04,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 22:07:04,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 22:07:04,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 22:07:04,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 22:07:04,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 22:07:04,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 22:07:04,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 22:07:04,105 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 22:07:04,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 22:07:04,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 22:07:04,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 22:07:04,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 22:07:04,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 22:07:04,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 22:07:04,118 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-23 22:07:04,132 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:07:04,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:07:04,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 22:07:04,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 22:07:04,134 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 22:07:04,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:07:04,135 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:07:04,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:07:04,135 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:07:04,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:07:04,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:07:04,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:07:04,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:07:04,136 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 22:07:04,136 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:07:04,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:07:04,137 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 22:07:04,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:07:04,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:07:04,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 22:07:04,137 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:07:04,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:07:04,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:07:04,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:07:04,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:07:04,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:07:04,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 22:07:04,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:07:04,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:07:04,139 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:07:04,452 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:07:04,478 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:07:04,482 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:07:04,485 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:07:04,486 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:07:04,487 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/array_3-1.i [2019-11-23 22:07:04,559 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04cb6e8ea/a275c12cf2f54b6f91c05b285183952e/FLAG139f140f0 [2019-11-23 22:07:05,041 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:07:05,043 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/array_3-1.i [2019-11-23 22:07:05,048 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04cb6e8ea/a275c12cf2f54b6f91c05b285183952e/FLAG139f140f0 [2019-11-23 22:07:05,415 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04cb6e8ea/a275c12cf2f54b6f91c05b285183952e [2019-11-23 22:07:05,425 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:07:05,427 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:07:05,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:07:05,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:07:05,431 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:07:05,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:07:05" (1/1) ... [2019-11-23 22:07:05,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11eebc17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05, skipping insertion in model container [2019-11-23 22:07:05,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:07:05" (1/1) ... [2019-11-23 22:07:05,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:07:05,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:07:05,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:07:05,659 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:07:05,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:07:05,698 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:07:05,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05 WrapperNode [2019-11-23 22:07:05,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:07:05,699 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:07:05,699 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:07:05,699 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:07:05,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (1/1) ... [2019-11-23 22:07:05,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (1/1) ... [2019-11-23 22:07:05,820 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:07:05,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:07:05,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:07:05,821 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:07:05,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (1/1) ... [2019-11-23 22:07:05,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (1/1) ... [2019-11-23 22:07:05,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (1/1) ... [2019-11-23 22:07:05,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (1/1) ... [2019-11-23 22:07:05,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (1/1) ... [2019-11-23 22:07:05,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (1/1) ... [2019-11-23 22:07:05,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (1/1) ... [2019-11-23 22:07:05,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:07:05,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:07:05,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:07:05,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:07:05,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (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 [2019-11-23 22:07:05,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-23 22:07:05,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:07:05,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:07:05,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-23 22:07:05,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-23 22:07:05,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-23 22:07:06,123 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:07:06,123 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-23 22:07:06,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:07:06 BoogieIcfgContainer [2019-11-23 22:07:06,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:07:06,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:07:06,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:07:06,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:07:06,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:07:05" (1/3) ... [2019-11-23 22:07:06,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6839962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:07:06, skipping insertion in model container [2019-11-23 22:07:06,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (2/3) ... [2019-11-23 22:07:06,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6839962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:07:06, skipping insertion in model container [2019-11-23 22:07:06,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:07:06" (3/3) ... [2019-11-23 22:07:06,151 INFO L109 eAbstractionObserver]: Analyzing ICFG array_3-1.i [2019-11-23 22:07:06,173 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:07:06,190 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 22:07:06,210 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 22:07:06,230 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:07:06,231 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:07:06,231 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:07:06,231 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:07:06,231 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:07:06,231 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:07:06,232 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:07:06,232 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:07:06,243 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-11-23 22:07:06,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-23 22:07:06,249 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:07:06,250 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:07:06,250 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:07:06,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:07:06,256 INFO L82 PathProgramCache]: Analyzing trace with hash 212411183, now seen corresponding path program 1 times [2019-11-23 22:07:06,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:07:06,264 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810256490] [2019-11-23 22:07:06,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:07:06,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:07:06,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:07:06,377 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810256490] [2019-11-23 22:07:06,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:07:06,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 22:07:06,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305017536] [2019-11-23 22:07:06,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-23 22:07:06,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:07:06,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-23 22:07:06,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-23 22:07:06,401 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2019-11-23 22:07:06,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:07:06,420 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2019-11-23 22:07:06,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-23 22:07:06,421 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-23 22:07:06,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:07:06,432 INFO L225 Difference]: With dead ends: 30 [2019-11-23 22:07:06,432 INFO L226 Difference]: Without dead ends: 13 [2019-11-23 22:07:06,435 INFO L630 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 [2019-11-23 22:07:06,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-23 22:07:06,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-23 22:07:06,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-23 22:07:06,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2019-11-23 22:07:06,468 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 8 [2019-11-23 22:07:06,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:07:06,468 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-11-23 22:07:06,468 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-23 22:07:06,469 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2019-11-23 22:07:06,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-23 22:07:06,469 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:07:06,470 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:07:06,470 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:07:06,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:07:06,470 INFO L82 PathProgramCache]: Analyzing trace with hash -2018507400, now seen corresponding path program 1 times [2019-11-23 22:07:06,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:07:06,471 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917587454] [2019-11-23 22:07:06,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:07:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:07:06,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:07:06,519 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917587454] [2019-11-23 22:07:06,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:07:06,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:07:06,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482853100] [2019-11-23 22:07:06,522 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 22:07:06,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:07:06,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 22:07:06,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:07:06,525 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 3 states. [2019-11-23 22:07:06,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:07:06,579 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2019-11-23 22:07:06,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 22:07:06,580 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-23 22:07:06,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:07:06,581 INFO L225 Difference]: With dead ends: 32 [2019-11-23 22:07:06,581 INFO L226 Difference]: Without dead ends: 23 [2019-11-23 22:07:06,582 INFO L630 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 [2019-11-23 22:07:06,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-23 22:07:06,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2019-11-23 22:07:06,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-23 22:07:06,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2019-11-23 22:07:06,588 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 9 [2019-11-23 22:07:06,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:07:06,589 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2019-11-23 22:07:06,589 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 22:07:06,589 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2019-11-23 22:07:06,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-23 22:07:06,590 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:07:06,590 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:07:06,590 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:07:06,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:07:06,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1562587830, now seen corresponding path program 1 times [2019-11-23 22:07:06,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:07:06,591 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825707519] [2019-11-23 22:07:06,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:07:06,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:07:06,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-23 22:07:06,657 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825707519] [2019-11-23 22:07:06,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:07:06,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-23 22:07:06,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263120885] [2019-11-23 22:07:06,662 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 22:07:06,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:07:06,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 22:07:06,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-23 22:07:06,665 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 4 states. [2019-11-23 22:07:06,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:07:06,750 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2019-11-23 22:07:06,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 22:07:06,751 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-23 22:07:06,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:07:06,752 INFO L225 Difference]: With dead ends: 23 [2019-11-23 22:07:06,752 INFO L226 Difference]: Without dead ends: 19 [2019-11-23 22:07:06,752 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-23 22:07:06,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-23 22:07:06,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2019-11-23 22:07:06,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-23 22:07:06,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2019-11-23 22:07:06,760 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2019-11-23 22:07:06,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:07:06,761 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2019-11-23 22:07:06,761 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 22:07:06,761 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-11-23 22:07:06,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-23 22:07:06,762 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:07:06,762 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:07:06,762 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:07:06,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:07:06,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1670186127, now seen corresponding path program 1 times [2019-11-23 22:07:06,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:07:06,764 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942873498] [2019-11-23 22:07:06,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:07:06,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:07:06,828 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-23 22:07:06,831 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942873498] [2019-11-23 22:07:06,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:07:06,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-23 22:07:06,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667310207] [2019-11-23 22:07:06,833 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-23 22:07:06,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:07:06,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-23 22:07:06,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-23 22:07:06,835 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 5 states. [2019-11-23 22:07:06,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:07:06,904 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2019-11-23 22:07:06,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 22:07:06,905 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-11-23 22:07:06,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:07:06,906 INFO L225 Difference]: With dead ends: 29 [2019-11-23 22:07:06,906 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 22:07:06,907 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-23 22:07:06,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 22:07:06,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 22:07:06,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 22:07:06,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 22:07:06,908 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-23 22:07:06,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:07:06,908 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 22:07:06,908 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-23 22:07:06,909 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 22:07:06,909 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 22:07:06,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 22:07:06,951 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 22:07:06,952 INFO L444 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2019-11-23 22:07:06,952 INFO L444 ceAbstractionStarter]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2019-11-23 22:07:06,952 INFO L440 ceAbstractionStarter]: At program point L17-4(lines 17 21) the Hoare annotation is: (<= ULTIMATE.start_main_~i~0 1023) [2019-11-23 22:07:06,952 INFO L444 ceAbstractionStarter]: For program point L17-5(lines 17 21) no Hoare annotation was computed. [2019-11-23 22:07:06,952 INFO L444 ceAbstractionStarter]: For program point L13-2(lines 13 15) no Hoare annotation was computed. [2019-11-23 22:07:06,953 INFO L447 ceAbstractionStarter]: At program point L13-3(lines 13 15) the Hoare annotation is: true [2019-11-23 22:07:06,953 INFO L444 ceAbstractionStarter]: For program point L13-4(lines 13 15) no Hoare annotation was computed. [2019-11-23 22:07:06,953 INFO L444 ceAbstractionStarter]: For program point L9(lines 9 23) no Hoare annotation was computed. [2019-11-23 22:07:06,953 INFO L444 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-23 22:07:06,953 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-23 22:07:06,953 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 22:07:06,953 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-23 22:07:06,954 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-23 22:07:06,954 INFO L444 ceAbstractionStarter]: For program point L18(lines 18 20) no Hoare annotation was computed. [2019-11-23 22:07:06,954 INFO L444 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-23 22:07:06,954 INFO L447 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2019-11-23 22:07:06,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:07:06 BoogieIcfgContainer [2019-11-23 22:07:06,971 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 22:07:06,975 INFO L168 Benchmark]: Toolchain (without parser) took 1547.43 ms. Allocated memory was 141.0 MB in the beginning and 200.3 MB in the end (delta: 59.2 MB). Free memory was 100.6 MB in the beginning and 116.1 MB in the end (delta: -15.5 MB). Peak memory consumption was 43.7 MB. Max. memory is 7.1 GB. [2019-11-23 22:07:06,978 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 141.0 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-11-23 22:07:06,981 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.23 ms. Allocated memory is still 141.0 MB. Free memory was 100.4 MB in the beginning and 90.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-11-23 22:07:06,982 INFO L168 Benchmark]: Boogie Procedure Inliner took 121.38 ms. Allocated memory was 141.0 MB in the beginning and 200.3 MB in the end (delta: 59.2 MB). Free memory was 90.1 MB in the beginning and 178.7 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-11-23 22:07:06,989 INFO L168 Benchmark]: Boogie Preprocessor took 23.35 ms. Allocated memory is still 200.3 MB. Free memory was 178.7 MB in the beginning and 177.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-11-23 22:07:06,990 INFO L168 Benchmark]: RCFGBuilder took 286.40 ms. Allocated memory is still 200.3 MB. Free memory was 177.0 MB in the beginning and 164.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2019-11-23 22:07:06,991 INFO L168 Benchmark]: TraceAbstraction took 838.91 ms. Allocated memory is still 200.3 MB. Free memory was 164.1 MB in the beginning and 116.1 MB in the end (delta: 48.0 MB). Peak memory consumption was 48.0 MB. Max. memory is 7.1 GB. [2019-11-23 22:07:07,002 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 141.0 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 271.23 ms. Allocated memory is still 141.0 MB. Free memory was 100.4 MB in the beginning and 90.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 121.38 ms. Allocated memory was 141.0 MB in the beginning and 200.3 MB in the end (delta: 59.2 MB). Free memory was 90.1 MB in the beginning and 178.7 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.35 ms. Allocated memory is still 200.3 MB. Free memory was 178.7 MB in the beginning and 177.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 286.40 ms. Allocated memory is still 200.3 MB. Free memory was 177.0 MB in the beginning and 164.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 838.91 ms. Allocated memory is still 200.3 MB. Free memory was 164.1 MB in the beginning and 116.1 MB in the end (delta: 48.0 MB). Peak memory consumption was 48.0 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: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: i <= 1023 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 43 SDtfs, 21 SDslu, 28 SDs, 0 SdLazy, 57 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 5 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 669 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 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...