./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops-crafted-1/sumt3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f6fb2bb1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loops-crafted-1/sumt3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 061e6ba1d53d9c5c96dfbb0744b589f75380e27b ......................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-f6fb2bb [2019-11-19 18:52:31,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 18:52:31,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 18:52:31,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 18:52:31,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 18:52:31,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 18:52:31,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 18:52:31,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 18:52:31,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 18:52:31,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 18:52:31,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 18:52:31,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 18:52:31,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 18:52:31,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 18:52:31,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 18:52:31,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 18:52:31,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 18:52:31,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 18:52:31,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 18:52:31,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 18:52:31,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 18:52:31,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 18:52:31,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 18:52:31,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 18:52:31,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 18:52:31,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 18:52:31,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 18:52:31,207 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 18:52:31,208 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 18:52:31,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 18:52:31,209 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 18:52:31,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 18:52:31,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 18:52:31,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 18:52:31,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 18:52:31,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 18:52:31,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 18:52:31,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 18:52:31,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 18:52:31,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 18:52:31,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 18:52:31,218 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 18:52:31,250 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 18:52:31,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 18:52:31,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 18:52:31,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 18:52:31,259 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 18:52:31,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 18:52:31,259 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 18:52:31,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 18:52:31,260 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 18:52:31,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 18:52:31,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 18:52:31,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 18:52:31,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 18:52:31,261 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 18:52:31,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 18:52:31,262 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 18:52:31,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 18:52:31,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 18:52:31,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 18:52:31,264 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 18:52:31,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 18:52:31,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 18:52:31,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 18:52:31,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 18:52:31,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 18:52:31,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 18:52:31,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 18:52:31,266 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 18:52:31,267 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 061e6ba1d53d9c5c96dfbb0744b589f75380e27b [2019-11-19 18:52:31,602 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 18:52:31,617 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 18:52:31,623 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 18:52:31,625 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 18:52:31,625 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 18:52:31,627 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/sumt3.c [2019-11-19 18:52:31,701 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d378965e3/eec1cefe19aa463e807236e3a1a2c2d2/FLAG74ed482dd [2019-11-19 18:52:32,157 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 18:52:32,158 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/sumt3.c [2019-11-19 18:52:32,164 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d378965e3/eec1cefe19aa463e807236e3a1a2c2d2/FLAG74ed482dd [2019-11-19 18:52:32,516 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d378965e3/eec1cefe19aa463e807236e3a1a2c2d2 [2019-11-19 18:52:32,519 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 18:52:32,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 18:52:32,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 18:52:32,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 18:52:32,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 18:52:32,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:52:32" (1/1) ... [2019-11-19 18:52:32,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a7f092d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:32, skipping insertion in model container [2019-11-19 18:52:32,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:52:32" (1/1) ... [2019-11-19 18:52:32,541 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 18:52:32,560 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 18:52:32,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:52:32,737 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 18:52:32,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:52:32,763 INFO L192 MainTranslator]: Completed translation [2019-11-19 18:52:32,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:32 WrapperNode [2019-11-19 18:52:32,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 18:52:32,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 18:52:32,765 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 18:52:32,765 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 18:52:32,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:32" (1/1) ... [2019-11-19 18:52:32,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:32" (1/1) ... [2019-11-19 18:52:32,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 18:52:32,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 18:52:32,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 18:52:32,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 18:52:32,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:32" (1/1) ... [2019-11-19 18:52:32,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:32" (1/1) ... [2019-11-19 18:52:32,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:32" (1/1) ... [2019-11-19 18:52:32,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:32" (1/1) ... [2019-11-19 18:52:32,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:32" (1/1) ... [2019-11-19 18:52:32,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:32" (1/1) ... [2019-11-19 18:52:32,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:32" (1/1) ... [2019-11-19 18:52:32,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 18:52:32,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 18:52:32,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 18:52:32,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 18:52:32,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:32" (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 [2019-11-19 18:52:32,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 18:52:32,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 18:52:33,131 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 18:52:33,132 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-19 18:52:33,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:52:33 BoogieIcfgContainer [2019-11-19 18:52:33,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 18:52:33,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 18:52:33,135 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 18:52:33,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 18:52:33,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:52:32" (1/3) ... [2019-11-19 18:52:33,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56dfd76d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:52:33, skipping insertion in model container [2019-11-19 18:52:33,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:32" (2/3) ... [2019-11-19 18:52:33,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56dfd76d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:52:33, skipping insertion in model container [2019-11-19 18:52:33,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:52:33" (3/3) ... [2019-11-19 18:52:33,160 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt3.c [2019-11-19 18:52:33,184 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 18:52:33,201 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 18:52:33,231 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 18:52:33,263 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 18:52:33,263 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 18:52:33,263 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 18:52:33,264 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 18:52:33,264 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 18:52:33,264 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 18:52:33,264 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 18:52:33,264 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 18:52:33,279 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-19 18:52:33,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-19 18:52:33,284 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:52:33,285 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:52:33,285 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:52:33,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:52:33,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1807458888, now seen corresponding path program 1 times [2019-11-19 18:52:33,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:52:33,300 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594565863] [2019-11-19 18:52:33,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:52:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:52:33,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:52:33,401 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594565863] [2019-11-19 18:52:33,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:52:33,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 18:52:33,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599016834] [2019-11-19 18:52:33,410 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 18:52:33,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:52:33,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 18:52:33,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 18:52:33,424 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2019-11-19 18:52:33,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:52:33,439 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2019-11-19 18:52:33,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 18:52:33,440 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-19 18:52:33,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:52:33,448 INFO L225 Difference]: With dead ends: 23 [2019-11-19 18:52:33,448 INFO L226 Difference]: Without dead ends: 11 [2019-11-19 18:52:33,452 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 [2019-11-19 18:52:33,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-19 18:52:33,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-19 18:52:33,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-19 18:52:33,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-11-19 18:52:33,483 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 7 [2019-11-19 18:52:33,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:52:33,484 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-11-19 18:52:33,484 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 18:52:33,484 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-11-19 18:52:33,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-19 18:52:33,484 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:52:33,485 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:52:33,485 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:52:33,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:52:33,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1806982232, now seen corresponding path program 1 times [2019-11-19 18:52:33,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:52:33,486 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890499840] [2019-11-19 18:52:33,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:52:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:52:33,749 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 27 [2019-11-19 18:52:33,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:52:33,839 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890499840] [2019-11-19 18:52:33,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:52:33,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 18:52:33,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836345934] [2019-11-19 18:52:33,842 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 18:52:33,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:52:33,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 18:52:33,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-19 18:52:33,843 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 5 states. [2019-11-19 18:52:37,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:52:37,988 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2019-11-19 18:52:37,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 18:52:37,989 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-11-19 18:52:37,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:52:37,991 INFO L225 Difference]: With dead ends: 18 [2019-11-19 18:52:37,992 INFO L226 Difference]: Without dead ends: 14 [2019-11-19 18:52:37,993 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-19 18:52:37,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-19 18:52:37,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2019-11-19 18:52:37,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-19 18:52:37,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-11-19 18:52:37,998 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 7 [2019-11-19 18:52:37,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:52:37,999 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-11-19 18:52:37,999 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 18:52:37,999 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-11-19 18:52:38,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-19 18:52:38,000 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:52:38,000 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:52:38,001 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:52:38,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:52:38,001 INFO L82 PathProgramCache]: Analyzing trace with hash 83295881, now seen corresponding path program 1 times [2019-11-19 18:52:38,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:52:38,002 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046461939] [2019-11-19 18:52:38,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:52:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:52:38,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:52:38,405 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046461939] [2019-11-19 18:52:38,406 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267456065] [2019-11-19 18:52:38,406 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 [2019-11-19 18:52:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:52:38,447 WARN L253 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-19 18:52:38,454 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 18:52:38,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:52:38,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 18:52:38,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12 [2019-11-19 18:52:38,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759933231] [2019-11-19 18:52:38,570 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-19 18:52:38,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:52:38,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-19 18:52:38,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2019-11-19 18:52:38,572 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 12 states. [2019-11-19 18:52:38,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:52:38,852 INFO L93 Difference]: Finished difference Result 25 states and 34 transitions. [2019-11-19 18:52:38,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-19 18:52:38,853 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 10 [2019-11-19 18:52:38,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:52:38,853 INFO L225 Difference]: With dead ends: 25 [2019-11-19 18:52:38,853 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 18:52:38,855 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2019-11-19 18:52:38,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 18:52:38,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 18:52:38,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 18:52:38,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 18:52:38,856 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-11-19 18:52:38,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:52:38,856 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 18:52:38,856 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-19 18:52:38,856 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 18:52:38,857 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 18:52:39,061 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 18:52:39,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 18:52:39,120 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 18:52:39,120 INFO L444 ceAbstractionStarter]: For program point L23(lines 23 26) no Hoare annotation was computed. [2019-11-19 18:52:39,120 INFO L444 ceAbstractionStarter]: For program point L21(lines 21 26) no Hoare annotation was computed. [2019-11-19 18:52:39,120 INFO L444 ceAbstractionStarter]: For program point L23-2(lines 21 26) no Hoare annotation was computed. [2019-11-19 18:52:39,121 INFO L440 ceAbstractionStarter]: At program point L19-2(lines 19 28) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~j~0))) (and (<= .cse0 ULTIMATE.start_main_~l~0) (<= ULTIMATE.start_main_~l~0 .cse0))) [2019-11-19 18:52:39,121 INFO L444 ceAbstractionStarter]: For program point L19-3(lines 19 28) no Hoare annotation was computed. [2019-11-19 18:52:39,121 INFO L444 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-19 18:52:39,122 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-19 18:52:39,122 INFO L447 ceAbstractionStarter]: At program point L30(lines 11 31) the Hoare annotation is: true [2019-11-19 18:52:39,122 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 18:52:39,122 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 18:52:39,123 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-19 18:52:39,123 INFO L444 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-11-19 18:52:39,123 INFO L444 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-19 18:52:39,123 INFO L447 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2019-11-19 18:52:39,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:52:39 BoogieIcfgContainer [2019-11-19 18:52:39,139 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 18:52:39,139 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 18:52:39,139 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 18:52:39,140 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 18:52:39,140 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:52:33" (3/4) ... [2019-11-19 18:52:39,144 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 18:52:39,155 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-19 18:52:39,155 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-19 18:52:39,204 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 18:52:39,205 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 18:52:39,207 INFO L168 Benchmark]: Toolchain (without parser) took 6685.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 959.0 MB in the beginning and 976.5 MB in the end (delta: -17.5 MB). Peak memory consumption was 112.5 MB. Max. memory is 11.5 GB. [2019-11-19 18:52:39,207 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 18:52:39,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.25 ms. Allocated memory is still 1.0 GB. Free memory was 959.0 MB in the beginning and 947.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-19 18:52:39,209 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -179.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-19 18:52:39,210 INFO L168 Benchmark]: Boogie Preprocessor took 28.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 18:52:39,210 INFO L168 Benchmark]: RCFGBuilder took 258.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2019-11-19 18:52:39,211 INFO L168 Benchmark]: TraceAbstraction took 6004.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 983.1 MB in the end (delta: 126.0 MB). Peak memory consumption was 126.0 MB. Max. memory is 11.5 GB. [2019-11-19 18:52:39,212 INFO L168 Benchmark]: Witness Printer took 65.63 ms. Allocated memory is still 1.2 GB. Free memory was 983.1 MB in the beginning and 976.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 18:52:39,216 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 240.25 ms. Allocated memory is still 1.0 GB. Free memory was 959.0 MB in the beginning and 947.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 81.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -179.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 258.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6004.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 983.1 MB in the end (delta: 126.0 MB). Peak memory consumption was 126.0 MB. Max. memory is 11.5 GB. * Witness Printer took 65.63 ms. Allocated memory is still 1.2 GB. Free memory was 983.1 MB in the beginning and 976.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 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: 19]: Loop Invariant Derived loop invariant: i + k + j <= l && l <= i + k + j - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Result: SAFE, OverallTime: 5.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 18 SDslu, 20 SDs, 0 SdLazy, 95 SolverSat, 12 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 15 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 78 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 3348 SizeOfPredicates, 6 NumberOfNonLiveVariables, 34 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 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...