/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/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/array-examples/standard_seq_init_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:27:06,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:27:06,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:27:06,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:27:06,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:27:06,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:27:06,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:27:06,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:27:06,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:27:06,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:27:06,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:27:06,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:27:06,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:27:06,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:27:06,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:27:06,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:27:06,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:27:06,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:27:06,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:27:06,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:27:06,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:27:06,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:27:06,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:27:06,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:27:06,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 22:27:06,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 22:27:06,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 22:27:06,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 22:27:06,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 22:27:06,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 22:27:06,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 22:27:06,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 22:27:06,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 22:27:06,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 22:27:06,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 22:27:06,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 22:27:06,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 22:27:06,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 22:27:06,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:27:06,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:27:06,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:27:06,226 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 [2019-11-06 22:27:06,248 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:27:06,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:27:06,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:27:06,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:27:06,250 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:27:06,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:27:06,251 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:27:06,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:27:06,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:27:06,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:27:06,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:27:06,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:27:06,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:27:06,253 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:27:06,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:27:06,254 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:27:06,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:27:06,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:27:06,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:27:06,254 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:27:06,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:27:06,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:27:06,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:27:06,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:27:06,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:27:06,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:27:06,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:27:06,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:27:06,256 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-06 22:27:06,521 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:27:06,535 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:27:06,538 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:27:06,540 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:27:06,540 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:27:06,541 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_seq_init_ground.i [2019-11-06 22:27:06,601 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae3f75055/04432b25d7fa4af1a4794a69f5473bb5/FLAGc6481a046 [2019-11-06 22:27:07,026 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:27:07,027 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_seq_init_ground.i [2019-11-06 22:27:07,033 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae3f75055/04432b25d7fa4af1a4794a69f5473bb5/FLAGc6481a046 [2019-11-06 22:27:07,444 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae3f75055/04432b25d7fa4af1a4794a69f5473bb5 [2019-11-06 22:27:07,454 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:27:07,456 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:27:07,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:27:07,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:27:07,461 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:27:07,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:27:07" (1/1) ... [2019-11-06 22:27:07,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ab07c1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:07, skipping insertion in model container [2019-11-06 22:27:07,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:27:07" (1/1) ... [2019-11-06 22:27:07,473 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:27:07,490 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:27:07,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:27:07,696 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:27:07,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:27:07,735 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:27:07,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:07 WrapperNode [2019-11-06 22:27:07,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:27:07,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:27:07,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:27:07,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:27:07,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:07" (1/1) ... [2019-11-06 22:27:07,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:07" (1/1) ... [2019-11-06 22:27:07,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:07" (1/1) ... [2019-11-06 22:27:07,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:07" (1/1) ... [2019-11-06 22:27:07,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:07" (1/1) ... [2019-11-06 22:27:07,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:07" (1/1) ... [2019-11-06 22:27:07,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:07" (1/1) ... [2019-11-06 22:27:07,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:27:07,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:27:07,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:27:07,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:27:07,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:07" (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 [2019-11-06 22:27:07,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:27:07,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:27:07,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-06 22:27:07,916 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:27:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:27:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-06 22:27:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:27:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 22:27:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:27:07,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:27:07,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:27:07,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:27:07,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:27:08,139 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:27:08,139 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-11-06 22:27:08,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:27:08 BoogieIcfgContainer [2019-11-06 22:27:08,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:27:08,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:27:08,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:27:08,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:27:08,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:27:07" (1/3) ... [2019-11-06 22:27:08,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dbe35fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:27:08, skipping insertion in model container [2019-11-06 22:27:08,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:07" (2/3) ... [2019-11-06 22:27:08,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dbe35fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:27:08, skipping insertion in model container [2019-11-06 22:27:08,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:27:08" (3/3) ... [2019-11-06 22:27:08,169 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_seq_init_ground.i [2019-11-06 22:27:08,201 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:27:08,220 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:27:08,251 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:27:08,291 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:27:08,291 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:27:08,291 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:27:08,292 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:27:08,292 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:27:08,292 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:27:08,292 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:27:08,292 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:27:08,306 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-06 22:27:08,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-06 22:27:08,311 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:27:08,312 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:27:08,314 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:27:08,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:27:08,320 INFO L82 PathProgramCache]: Analyzing trace with hash -441053002, now seen corresponding path program 1 times [2019-11-06 22:27:08,328 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:27:08,328 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435969293] [2019-11-06 22:27:08,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:27:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:27:08,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:27:08,448 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435969293] [2019-11-06 22:27:08,449 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:27:08,449 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-06 22:27:08,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58069351] [2019-11-06 22:27:08,453 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:27:08,455 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:27:08,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-06 22:27:08,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-06 22:27:08,472 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2019-11-06 22:27:08,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:27:08,497 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2019-11-06 22:27:08,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:27:08,498 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-11-06 22:27:08,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:27:08,507 INFO L225 Difference]: With dead ends: 39 [2019-11-06 22:27:08,507 INFO L226 Difference]: Without dead ends: 18 [2019-11-06 22:27:08,510 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 [2019-11-06 22:27:08,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-06 22:27:08,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-06 22:27:08,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-06 22:27:08,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-11-06 22:27:08,548 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2019-11-06 22:27:08,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:27:08,548 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-11-06 22:27:08,548 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:27:08,549 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-11-06 22:27:08,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-06 22:27:08,549 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:27:08,550 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:27:08,550 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:27:08,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:27:08,551 INFO L82 PathProgramCache]: Analyzing trace with hash 303899570, now seen corresponding path program 1 times [2019-11-06 22:27:08,551 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:27:08,551 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726010165] [2019-11-06 22:27:08,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:27:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:27:08,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:27:08,607 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726010165] [2019-11-06 22:27:08,608 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:27:08,608 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:27:08,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528999061] [2019-11-06 22:27:08,610 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:27:08,610 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:27:08,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:27:08,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:27:08,611 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 3 states. [2019-11-06 22:27:08,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:27:08,630 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2019-11-06 22:27:08,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:27:08,631 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-11-06 22:27:08,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:27:08,632 INFO L225 Difference]: With dead ends: 30 [2019-11-06 22:27:08,632 INFO L226 Difference]: Without dead ends: 19 [2019-11-06 22:27:08,634 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 [2019-11-06 22:27:08,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-06 22:27:08,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-06 22:27:08,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-06 22:27:08,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2019-11-06 22:27:08,639 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 13 [2019-11-06 22:27:08,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:27:08,640 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2019-11-06 22:27:08,640 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:27:08,640 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2019-11-06 22:27:08,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-06 22:27:08,641 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:27:08,641 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:27:08,642 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:27:08,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:27:08,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1260126610, now seen corresponding path program 1 times [2019-11-06 22:27:08,642 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:27:08,643 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122522719] [2019-11-06 22:27:08,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:27:08,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:27:08,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:27:08,699 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122522719] [2019-11-06 22:27:08,699 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103784280] [2019-11-06 22:27:08,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:27:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:27:08,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 22:27:08,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:27:08,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:27:08,798 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:27:08,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:27:08,841 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [722938712] [2019-11-06 22:27:08,846 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 15 [2019-11-06 22:27:08,875 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-06 22:27:08,875 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-06 22:27:08,930 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-06 22:27:08,932 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 0. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 19 variables. [2019-11-06 22:27:08,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:27:08,935 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-06 22:27:08,967 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-11-06 22:27:08,968 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-06 22:27:08,969 INFO L553 sIntCurrentIteration]: We unified 13 AI predicates to 13 [2019-11-06 22:27:08,970 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-06 22:27:08,970 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-06 22:27:08,971 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 6 [2019-11-06 22:27:08,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137520212] [2019-11-06 22:27:08,974 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:27:08,974 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:27:08,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:27:08,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-06 22:27:08,976 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 2 states. [2019-11-06 22:27:08,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:27:08,979 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-11-06 22:27:08,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:27:08,980 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-11-06 22:27:08,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:27:08,980 INFO L225 Difference]: With dead ends: 19 [2019-11-06 22:27:08,980 INFO L226 Difference]: Without dead ends: 0 [2019-11-06 22:27:08,981 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-06 22:27:08,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-06 22:27:08,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-06 22:27:08,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-06 22:27:08,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-06 22:27:08,982 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-11-06 22:27:08,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:27:08,982 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-06 22:27:08,982 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:27:08,982 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-06 22:27:08,982 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-06 22:27:09,185 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:27:09,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-06 22:27:09,218 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:27:09,219 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:27:09,219 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:27:09,219 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:27:09,219 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-06 22:27:09,219 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:27:09,219 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:27:09,219 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 3 17) no Hoare annotation was computed. [2019-11-06 22:27:09,219 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 3 17) no Hoare annotation was computed. [2019-11-06 22:27:09,220 INFO L443 ceAbstractionStarter]: For program point L13-2(lines 13 15) no Hoare annotation was computed. [2019-11-06 22:27:09,220 INFO L439 ceAbstractionStarter]: At program point L13-3(lines 13 15) the Hoare annotation is: false [2019-11-06 22:27:09,220 INFO L443 ceAbstractionStarter]: For program point L13-4(lines 13 15) no Hoare annotation was computed. [2019-11-06 22:27:09,220 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 3 17) the Hoare annotation is: true [2019-11-06 22:27:09,220 INFO L439 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: false [2019-11-06 22:27:09,220 INFO L443 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2019-11-06 22:27:09,220 INFO L439 ceAbstractionStarter]: At program point L8-2(lines 8 11) the Hoare annotation is: false [2019-11-06 22:27:09,220 INFO L443 ceAbstractionStarter]: For program point L8-3(lines 8 11) no Hoare annotation was computed. [2019-11-06 22:27:09,221 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-11-06 22:27:09,222 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-11-06 22:27:09,223 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-11-06 22:27:09,223 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-11-06 22:27:09,223 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-11-06 22:27:09,223 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-11-06 22:27:09,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:27:09 BoogieIcfgContainer [2019-11-06 22:27:09,234 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-06 22:27:09,238 INFO L168 Benchmark]: Toolchain (without parser) took 1780.53 ms. Allocated memory was 141.6 MB in the beginning and 200.8 MB in the end (delta: 59.2 MB). Free memory was 99.6 MB in the beginning and 113.2 MB in the end (delta: -13.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 7.1 GB. [2019-11-06 22:27:09,240 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-06 22:27:09,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.76 ms. Allocated memory is still 141.6 MB. Free memory was 99.4 MB in the beginning and 89.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-11-06 22:27:09,243 INFO L168 Benchmark]: Boogie Preprocessor took 125.80 ms. Allocated memory was 141.6 MB in the beginning and 200.8 MB in the end (delta: 59.2 MB). Free memory was 89.8 MB in the beginning and 178.9 MB in the end (delta: -89.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-11-06 22:27:09,245 INFO L168 Benchmark]: RCFGBuilder took 280.80 ms. Allocated memory is still 200.8 MB. Free memory was 178.9 MB in the beginning and 165.5 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2019-11-06 22:27:09,251 INFO L168 Benchmark]: TraceAbstraction took 1084.50 ms. Allocated memory is still 200.8 MB. Free memory was 164.8 MB in the beginning and 113.2 MB in the end (delta: 51.6 MB). Peak memory consumption was 51.6 MB. Max. memory is 7.1 GB. [2019-11-06 22:27:09,262 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 279.76 ms. Allocated memory is still 141.6 MB. Free memory was 99.4 MB in the beginning and 89.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.80 ms. Allocated memory was 141.6 MB in the beginning and 200.8 MB in the end (delta: 59.2 MB). Free memory was 89.8 MB in the beginning and 178.9 MB in the end (delta: -89.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 280.80 ms. Allocated memory is still 200.8 MB. Free memory was 178.9 MB in the beginning and 165.5 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1084.50 ms. Allocated memory is still 200.8 MB. Free memory was 164.8 MB in the beginning and 113.2 MB in the end (delta: 51.6 MB). Peak memory consumption was 51.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: 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: 8]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. Result: SAFE, OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 47 SDtfs, 0 SDslu, 16 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 10 PreInvPairs, 10 NumberOfFragments, 8 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 975 SizeOfPredicates, 1 NumberOfNonLiveVariables, 59 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 89, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9423076923076923, AVG_VARS_REMOVED_DURING_WEAKENING: 0.8461538461538461, AVG_WEAKENED_CONJUNCTS: 0.46153846153846156, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...