/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 -i ../../../trunk/examples/svcomp/recursive/Addition01-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 16:18:34,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 16:18:34,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 16:18:34,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 16:18:34,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 16:18:34,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 16:18:34,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 16:18:34,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 16:18:34,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 16:18:34,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 16:18:34,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 16:18:34,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 16:18:34,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 16:18:34,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 16:18:34,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 16:18:34,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 16:18:34,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 16:18:34,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 16:18:34,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 16:18:34,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 16:18:34,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 16:18:34,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 16:18:34,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 16:18:34,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 16:18:34,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 16:18:34,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 16:18:34,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 16:18:34,363 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 16:18:34,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 16:18:34,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 16:18:34,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 16:18:34,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 16:18:34,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 16:18:34,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 16:18:34,374 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 16:18:34,374 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 16:18:34,375 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 16:18:34,375 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 16:18:34,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 16:18:34,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 16:18:34,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 16:18:34,379 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 [2020-08-22 16:18:34,421 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 16:18:34,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 16:18:34,424 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 16:18:34,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 16:18:34,424 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 16:18:34,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 16:18:34,425 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 16:18:34,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 16:18:34,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 16:18:34,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 16:18:34,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 16:18:34,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 16:18:34,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 16:18:34,427 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 16:18:34,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 16:18:34,428 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 16:18:34,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 16:18:34,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 16:18:34,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 16:18:34,428 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 16:18:34,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 16:18:34,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:18:34,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 16:18:34,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 16:18:34,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 16:18:34,429 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 16:18:34,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 16:18:34,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 16:18:34,430 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 16:18:34,430 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 16:18:34,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 16:18:34,767 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 16:18:34,770 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 16:18:34,772 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 16:18:34,772 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 16:18:34,773 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Addition01-2.c [2020-08-22 16:18:34,844 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fdc67d1d/3afd530c4ad54e689e5d25cbe6b773b7/FLAG494de776e [2020-08-22 16:18:35,330 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 16:18:35,330 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/Addition01-2.c [2020-08-22 16:18:35,338 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fdc67d1d/3afd530c4ad54e689e5d25cbe6b773b7/FLAG494de776e [2020-08-22 16:18:35,703 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fdc67d1d/3afd530c4ad54e689e5d25cbe6b773b7 [2020-08-22 16:18:35,711 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 16:18:35,713 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 16:18:35,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 16:18:35,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 16:18:35,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 16:18:35,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:18:35" (1/1) ... [2020-08-22 16:18:35,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c25a75a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:18:35, skipping insertion in model container [2020-08-22 16:18:35,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:18:35" (1/1) ... [2020-08-22 16:18:35,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 16:18:35,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 16:18:35,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:18:35,933 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 16:18:35,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:18:35,960 INFO L208 MainTranslator]: Completed translation [2020-08-22 16:18:35,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:18:35 WrapperNode [2020-08-22 16:18:35,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 16:18:35,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 16:18:35,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 16:18:35,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 16:18:35,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:18:35" (1/1) ... [2020-08-22 16:18:35,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:18:35" (1/1) ... [2020-08-22 16:18:36,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:18:35" (1/1) ... [2020-08-22 16:18:36,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:18:35" (1/1) ... [2020-08-22 16:18:36,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:18:35" (1/1) ... [2020-08-22 16:18:36,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:18:35" (1/1) ... [2020-08-22 16:18:36,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:18:35" (1/1) ... [2020-08-22 16:18:36,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 16:18:36,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 16:18:36,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 16:18:36,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 16:18:36,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:18:35" (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 [2020-08-22 16:18:36,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 16:18:36,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 16:18:36,131 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-08-22 16:18:36,132 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 16:18:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 16:18:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 16:18:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-08-22 16:18:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 16:18:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 16:18:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 16:18:36,321 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 16:18:36,321 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 16:18:36,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:18:36 BoogieIcfgContainer [2020-08-22 16:18:36,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 16:18:36,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 16:18:36,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 16:18:36,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 16:18:36,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:18:35" (1/3) ... [2020-08-22 16:18:36,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21326569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:18:36, skipping insertion in model container [2020-08-22 16:18:36,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:18:35" (2/3) ... [2020-08-22 16:18:36,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21326569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:18:36, skipping insertion in model container [2020-08-22 16:18:36,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:18:36" (3/3) ... [2020-08-22 16:18:36,333 INFO L109 eAbstractionObserver]: Analyzing ICFG Addition01-2.c [2020-08-22 16:18:36,344 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-08-22 16:18:36,351 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 16:18:36,365 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 16:18:36,392 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 16:18:36,393 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 16:18:36,393 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-08-22 16:18:36,393 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 16:18:36,393 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 16:18:36,393 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 16:18:36,393 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 16:18:36,394 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 16:18:36,413 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-08-22 16:18:36,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-08-22 16:18:36,420 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:18:36,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:18:36,422 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:18:36,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:18:36,428 INFO L82 PathProgramCache]: Analyzing trace with hash -854965079, now seen corresponding path program 1 times [2020-08-22 16:18:36,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:18:36,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972651032] [2020-08-22 16:18:36,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:18:36,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:18:36,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:18:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:18:36,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 16:18:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:18:36,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:18:36,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972651032] [2020-08-22 16:18:36,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:18:36,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 16:18:36,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045077705] [2020-08-22 16:18:36,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 16:18:36,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:18:36,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 16:18:36,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:18:36,776 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 6 states. [2020-08-22 16:18:36,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:18:36,998 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2020-08-22 16:18:36,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 16:18:37,000 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-08-22 16:18:37,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:18:37,011 INFO L225 Difference]: With dead ends: 38 [2020-08-22 16:18:37,011 INFO L226 Difference]: Without dead ends: 24 [2020-08-22 16:18:37,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 16:18:37,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-08-22 16:18:37,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-08-22 16:18:37,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-08-22 16:18:37,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2020-08-22 16:18:37,058 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 15 [2020-08-22 16:18:37,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:18:37,058 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2020-08-22 16:18:37,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 16:18:37,059 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2020-08-22 16:18:37,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-22 16:18:37,061 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:18:37,061 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:18:37,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 16:18:37,062 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:18:37,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:18:37,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1632999070, now seen corresponding path program 1 times [2020-08-22 16:18:37,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:18:37,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650604225] [2020-08-22 16:18:37,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:18:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:18:37,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:18:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:18:37,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 16:18:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:18:37,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:18:37,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650604225] [2020-08-22 16:18:37,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:18:37,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 16:18:37,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694986092] [2020-08-22 16:18:37,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 16:18:37,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:18:37,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 16:18:37,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:18:37,275 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand 6 states. [2020-08-22 16:18:37,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:18:37,371 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2020-08-22 16:18:37,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 16:18:37,371 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-08-22 16:18:37,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:18:37,373 INFO L225 Difference]: With dead ends: 35 [2020-08-22 16:18:37,373 INFO L226 Difference]: Without dead ends: 21 [2020-08-22 16:18:37,374 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-22 16:18:37,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-08-22 16:18:37,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-08-22 16:18:37,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-08-22 16:18:37,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-08-22 16:18:37,381 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 17 [2020-08-22 16:18:37,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:18:37,382 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-08-22 16:18:37,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 16:18:37,382 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-08-22 16:18:37,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-08-22 16:18:37,384 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:18:37,384 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:18:37,384 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 16:18:37,384 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:18:37,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:18:37,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1746800232, now seen corresponding path program 1 times [2020-08-22 16:18:37,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:18:37,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484397086] [2020-08-22 16:18:37,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:18:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:18:37,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:18:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:18:37,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 16:18:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:18:37,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 16:18:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:18:37,648 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-22 16:18:37,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484397086] [2020-08-22 16:18:37,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205112016] [2020-08-22 16:18:37,649 INFO L95 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 [2020-08-22 16:18:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:18:37,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 27 conjunts are in the unsatisfiable core [2020-08-22 16:18:37,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:18:37,925 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 16:18:37,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:18:37,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 15 [2020-08-22 16:18:37,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252859080] [2020-08-22 16:18:37,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-22 16:18:37,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:18:37,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-22 16:18:37,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-08-22 16:18:37,928 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 15 states. [2020-08-22 16:18:38,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:18:38,128 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2020-08-22 16:18:38,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-22 16:18:38,129 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 22 [2020-08-22 16:18:38,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:18:38,130 INFO L225 Difference]: With dead ends: 26 [2020-08-22 16:18:38,130 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 16:18:38,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2020-08-22 16:18:38,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 16:18:38,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 16:18:38,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 16:18:38,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 16:18:38,133 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-08-22 16:18:38,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:18:38,133 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 16:18:38,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-22 16:18:38,133 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 16:18:38,133 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 16:18:38,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-08-22 16:18:38,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 16:18:38,443 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-22 16:18:38,443 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 16:18:38,443 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 16:18:38,444 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 16:18:38,444 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 16:18:38,444 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 16:18:38,444 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2020-08-22 16:18:38,444 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 26 45) the Hoare annotation is: true [2020-08-22 16:18:38,445 INFO L268 CegarLoopResult]: For program point L28(lines 28 32) no Hoare annotation was computed. [2020-08-22 16:18:38,445 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 26 45) no Hoare annotation was computed. [2020-08-22 16:18:38,445 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 26 45) no Hoare annotation was computed. [2020-08-22 16:18:38,445 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-08-22 16:18:38,445 INFO L268 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2020-08-22 16:18:38,445 INFO L264 CegarLoopResult]: At program point L39(line 39) the Hoare annotation is: (or (<= 1 main_~n~0) (= main_~n~0 0)) [2020-08-22 16:18:38,446 INFO L268 CegarLoopResult]: For program point L39-1(line 39) no Hoare annotation was computed. [2020-08-22 16:18:38,446 INFO L268 CegarLoopResult]: For program point L34(lines 34 38) no Hoare annotation was computed. [2020-08-22 16:18:38,446 INFO L268 CegarLoopResult]: For program point additionFINAL(lines 13 23) no Hoare annotation was computed. [2020-08-22 16:18:38,446 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (and (= |addition_#in~n| addition_~n) (= |addition_#in~m| addition_~m) (<= |addition_#in~n| 0) (not (= |addition_#in~n| 0))) [2020-08-22 16:18:38,446 INFO L268 CegarLoopResult]: For program point L20(lines 20 22) no Hoare annotation was computed. [2020-08-22 16:18:38,447 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-08-22 16:18:38,448 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (and (< 0 addition_~n) (= |addition_#in~n| addition_~n) (= |addition_#in~m| addition_~m)) [2020-08-22 16:18:38,448 INFO L268 CegarLoopResult]: For program point L17(lines 17 19) no Hoare annotation was computed. [2020-08-22 16:18:38,448 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-08-22 16:18:38,448 INFO L271 CegarLoopResult]: At program point additionENTRY(lines 13 23) the Hoare annotation is: true [2020-08-22 16:18:38,448 INFO L268 CegarLoopResult]: For program point L14(lines 14 16) no Hoare annotation was computed. [2020-08-22 16:18:38,449 INFO L268 CegarLoopResult]: For program point additionEXIT(lines 13 23) no Hoare annotation was computed. [2020-08-22 16:18:38,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:18:38 BoogieIcfgContainer [2020-08-22 16:18:38,457 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 16:18:38,462 INFO L168 Benchmark]: Toolchain (without parser) took 2745.80 ms. Allocated memory was 140.5 MB in the beginning and 235.4 MB in the end (delta: 94.9 MB). Free memory was 104.3 MB in the beginning and 140.8 MB in the end (delta: -36.5 MB). Peak memory consumption was 58.4 MB. Max. memory is 7.1 GB. [2020-08-22 16:18:38,464 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 16:18:38,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.37 ms. Allocated memory is still 140.5 MB. Free memory was 104.1 MB in the beginning and 94.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-08-22 16:18:38,467 INFO L168 Benchmark]: Boogie Preprocessor took 103.41 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 94.5 MB in the beginning and 181.1 MB in the end (delta: -86.6 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-08-22 16:18:38,468 INFO L168 Benchmark]: RCFGBuilder took 259.27 ms. Allocated memory is still 202.4 MB. Free memory was 181.1 MB in the beginning and 168.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-08-22 16:18:38,476 INFO L168 Benchmark]: TraceAbstraction took 2130.60 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 167.9 MB in the beginning and 140.8 MB in the end (delta: 27.1 MB). Peak memory consumption was 60.2 MB. Max. memory is 7.1 GB. [2020-08-22 16:18:38,487 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 247.37 ms. Allocated memory is still 140.5 MB. Free memory was 104.1 MB in the beginning and 94.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.41 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 94.5 MB in the beginning and 181.1 MB in the end (delta: -86.6 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 259.27 ms. Allocated memory is still 202.4 MB. Free memory was 181.1 MB in the beginning and 168.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2130.60 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 167.9 MB in the beginning and 140.8 MB in the end (delta: 27.1 MB). Peak memory consumption was 60.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 41 SDslu, 169 SDs, 0 SdLazy, 211 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 14 PreInvPairs, 14 NumberOfFragments, 36 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 6250 SizeOfPredicates, 7 NumberOfNonLiveVariables, 64 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 3/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...