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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/array-examples/standard_copy6_ground-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 16:29:53,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 16:29:53,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 16:29:53,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 16:29:53,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 16:29:53,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 16:29:53,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 16:29:53,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 16:29:53,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 16:29:53,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 16:29:53,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 16:29:53,432 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 16:29:53,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 16:29:53,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 16:29:53,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 16:29:53,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 16:29:53,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 16:29:53,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 16:29:53,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 16:29:53,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 16:29:53,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 16:29:53,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 16:29:53,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 16:29:53,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 16:29:53,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 16:29:53,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 16:29:53,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 16:29:53,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 16:29:53,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 16:29:53,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 16:29:53,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 16:29:53,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 16:29:53,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 16:29:53,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 16:29:53,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 16:29:53,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 16:29:53,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 16:29:53,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 16:29:53,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 16:29:53,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 16:29:53,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 16:29:53,456 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-02 16:29:53,470 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 16:29:53,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 16:29:53,471 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-02 16:29:53,471 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-02 16:29:53,472 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-02 16:29:53,472 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-02 16:29:53,472 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-02 16:29:53,472 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-02 16:29:53,472 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-02 16:29:53,473 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-02 16:29:53,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 16:29:53,473 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 16:29:53,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 16:29:53,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 16:29:53,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 16:29:53,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 16:29:53,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 16:29:53,475 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 16:29:53,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 16:29:53,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 16:29:53,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 16:29:53,475 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-02 16:29:53,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 16:29:53,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 16:29:53,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 16:29:53,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 16:29:53,476 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-02 16:29:53,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 16:29:53,477 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 16:29:53,477 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-02 16:29:53,505 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 16:29:53,517 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 16:29:53,520 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 16:29:53,522 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 16:29:53,522 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 16:29:53,523 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_copy6_ground-1.i [2019-10-02 16:29:53,584 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f2e9aea0/3ee87f0ef5a24418b490885893f3da95/FLAGb8b8f48a3 [2019-10-02 16:29:53,986 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 16:29:53,987 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_copy6_ground-1.i [2019-10-02 16:29:53,993 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f2e9aea0/3ee87f0ef5a24418b490885893f3da95/FLAGb8b8f48a3 [2019-10-02 16:29:54,408 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f2e9aea0/3ee87f0ef5a24418b490885893f3da95 [2019-10-02 16:29:54,416 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 16:29:54,418 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 16:29:54,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 16:29:54,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 16:29:54,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 16:29:54,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 04:29:54" (1/1) ... [2019-10-02 16:29:54,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f39b728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:29:54, skipping insertion in model container [2019-10-02 16:29:54,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 04:29:54" (1/1) ... [2019-10-02 16:29:54,434 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 16:29:54,454 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 16:29:54,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 16:29:54,648 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 16:29:54,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 16:29:54,702 INFO L192 MainTranslator]: Completed translation [2019-10-02 16:29:54,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:29:54 WrapperNode [2019-10-02 16:29:54,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 16:29:54,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 16:29:54,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 16:29:54,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 16:29:54,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:29:54" (1/1) ... [2019-10-02 16:29:54,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:29:54" (1/1) ... [2019-10-02 16:29:54,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:29:54" (1/1) ... [2019-10-02 16:29:54,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:29:54" (1/1) ... [2019-10-02 16:29:54,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:29:54" (1/1) ... [2019-10-02 16:29:54,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:29:54" (1/1) ... [2019-10-02 16:29:54,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:29:54" (1/1) ... [2019-10-02 16:29:54,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 16:29:54,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 16:29:54,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 16:29:54,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 16:29:54,860 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:29:54" (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 [2019-10-02 16:29:54,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 16:29:54,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 16:29:54,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-02 16:29:54,921 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 16:29:54,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 16:29:54,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-02 16:29:54,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 16:29:54,922 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 16:29:54,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 16:29:54,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 16:29:54,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 16:29:54,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 16:29:54,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 16:29:54,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 16:29:55,263 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 16:29:55,264 INFO L283 CfgBuilder]: Removed 8 assume(true) statements. [2019-10-02 16:29:55,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 04:29:55 BoogieIcfgContainer [2019-10-02 16:29:55,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 16:29:55,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 16:29:55,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 16:29:55,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 16:29:55,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 04:29:54" (1/3) ... [2019-10-02 16:29:55,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f395a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 04:29:55, skipping insertion in model container [2019-10-02 16:29:55,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:29:54" (2/3) ... [2019-10-02 16:29:55,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f395a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 04:29:55, skipping insertion in model container [2019-10-02 16:29:55,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 04:29:55" (3/3) ... [2019-10-02 16:29:55,273 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_copy6_ground-1.i [2019-10-02 16:29:55,283 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 16:29:55,299 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 16:29:55,335 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 16:29:55,369 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 16:29:55,369 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-02 16:29:55,369 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 16:29:55,370 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 16:29:55,370 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 16:29:55,370 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 16:29:55,370 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 16:29:55,370 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 16:29:55,386 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-10-02 16:29:55,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-02 16:29:55,396 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:29:55,397 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 16:29:55,399 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:29:55,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:29:55,405 INFO L82 PathProgramCache]: Analyzing trace with hash 772526198, now seen corresponding path program 1 times [2019-10-02 16:29:55,408 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:29:55,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:29:55,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:29:55,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:29:55,460 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:29:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:29:55,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 16:29:55,562 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 16:29:55,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 16:29:55,562 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:29:55,567 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 16:29:55,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 16:29:55,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 16:29:55,580 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-10-02 16:29:55,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:29:55,594 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2019-10-02 16:29:55,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 16:29:55,596 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2019-10-02 16:29:55,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:29:55,604 INFO L225 Difference]: With dead ends: 42 [2019-10-02 16:29:55,604 INFO L226 Difference]: Without dead ends: 37 [2019-10-02 16:29:55,606 INFO L640 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 [2019-10-02 16:29:55,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-10-02 16:29:55,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-10-02 16:29:55,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-10-02 16:29:55,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2019-10-02 16:29:55,640 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 25 [2019-10-02 16:29:55,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:29:55,640 INFO L475 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2019-10-02 16:29:55,640 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 16:29:55,641 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2019-10-02 16:29:55,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-02 16:29:55,642 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:29:55,642 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 16:29:55,642 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:29:55,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:29:55,643 INFO L82 PathProgramCache]: Analyzing trace with hash 514335338, now seen corresponding path program 1 times [2019-10-02 16:29:55,643 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:29:55,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:29:55,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:29:55,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:29:55,646 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:29:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:29:55,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 16:29:55,722 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 16:29:55,722 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 16:29:55,723 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:29:55,724 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 16:29:55,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 16:29:55,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 16:29:55,725 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 3 states. [2019-10-02 16:29:55,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:29:55,751 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2019-10-02 16:29:55,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 16:29:55,752 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-02 16:29:55,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:29:55,753 INFO L225 Difference]: With dead ends: 39 [2019-10-02 16:29:55,753 INFO L226 Difference]: Without dead ends: 39 [2019-10-02 16:29:55,754 INFO L640 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 [2019-10-02 16:29:55,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-10-02 16:29:55,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2019-10-02 16:29:55,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-10-02 16:29:55,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2019-10-02 16:29:55,760 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 25 [2019-10-02 16:29:55,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:29:55,761 INFO L475 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2019-10-02 16:29:55,761 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 16:29:55,761 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2019-10-02 16:29:55,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-02 16:29:55,763 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:29:55,763 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 16:29:55,763 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:29:55,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:29:55,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1148318088, now seen corresponding path program 1 times [2019-10-02 16:29:55,764 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:29:55,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:29:55,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:29:55,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:29:55,766 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:29:55,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:29:55,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-02 16:29:55,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 16:29:55,847 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 16:29:55,847 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:29:55,847 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 16:29:55,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 16:29:55,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 16:29:55,848 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 3 states. [2019-10-02 16:29:55,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:29:55,941 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2019-10-02 16:29:55,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 16:29:55,942 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-10-02 16:29:55,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:29:55,943 INFO L225 Difference]: With dead ends: 50 [2019-10-02 16:29:55,944 INFO L226 Difference]: Without dead ends: 50 [2019-10-02 16:29:55,944 INFO L640 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 [2019-10-02 16:29:55,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-10-02 16:29:55,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2019-10-02 16:29:55,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-10-02 16:29:55,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2019-10-02 16:29:55,951 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 27 [2019-10-02 16:29:55,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:29:55,952 INFO L475 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2019-10-02 16:29:55,952 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 16:29:55,952 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2019-10-02 16:29:55,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-02 16:29:55,953 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:29:55,953 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 16:29:55,954 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:29:55,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:29:55,954 INFO L82 PathProgramCache]: Analyzing trace with hash 342802812, now seen corresponding path program 1 times [2019-10-02 16:29:55,954 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:29:55,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:29:55,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:29:55,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:29:55,956 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:29:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:29:56,085 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-02 16:29:56,085 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 16:29:56,086 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-02 16:29:56,086 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 40 with the following transitions: [2019-10-02 16:29:56,090 INFO L207 CegarAbsIntRunner]: [0], [1], [5], [11], [13], [15], [19], [25], [27], [29], [33], [39], [41], [43], [47], [53], [55], [57], [61], [67], [69], [71], [75], [81], [83], [85], [89], [95], [97], [99], [103], [111], [121], [124], [126], [132], [133], [134], [136] [2019-10-02 16:29:56,138 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-02 16:29:56,139 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-02 16:29:56,212 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-02 16:29:56,214 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 46 variables. [2019-10-02 16:29:56,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:29:56,218 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-02 16:29:56,260 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-02 16:29:56,260 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-02 16:29:56,263 INFO L420 sIntCurrentIteration]: We unified 38 AI predicates to 38 [2019-10-02 16:29:56,263 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-02 16:29:56,264 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 16:29:56,264 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 4 [2019-10-02 16:29:56,264 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:29:56,265 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 16:29:56,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 16:29:56,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 16:29:56,266 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand 2 states. [2019-10-02 16:29:56,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:29:56,267 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-10-02 16:29:56,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 16:29:56,267 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 39 [2019-10-02 16:29:56,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:29:56,268 INFO L225 Difference]: With dead ends: 6 [2019-10-02 16:29:56,268 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 16:29:56,268 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 16:29:56,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 16:29:56,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 16:29:56,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 16:29:56,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 16:29:56,269 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2019-10-02 16:29:56,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:29:56,270 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 16:29:56,270 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 16:29:56,270 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 16:29:56,270 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 16:29:56,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 04:29:56 BoogieIcfgContainer [2019-10-02 16:29:56,275 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 16:29:56,278 INFO L168 Benchmark]: Toolchain (without parser) took 1859.56 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 85.6 MB in the beginning and 94.5 MB in the end (delta: -9.0 MB). Peak memory consumption was 51.3 MB. Max. memory is 7.1 GB. [2019-10-02 16:29:56,279 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 104.4 MB in the beginning and 104.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 16:29:56,280 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.36 ms. Allocated memory is still 138.4 MB. Free memory was 85.4 MB in the beginning and 74.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2019-10-02 16:29:56,281 INFO L168 Benchmark]: Boogie Preprocessor took 155.09 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 74.9 MB in the beginning and 174.6 MB in the end (delta: -99.7 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-10-02 16:29:56,282 INFO L168 Benchmark]: RCFGBuilder took 406.74 ms. Allocated memory is still 198.7 MB. Free memory was 174.6 MB in the beginning and 153.6 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2019-10-02 16:29:56,283 INFO L168 Benchmark]: TraceAbstraction took 1009.22 ms. Allocated memory is still 198.7 MB. Free memory was 153.6 MB in the beginning and 94.5 MB in the end (delta: 59.1 MB). Peak memory consumption was 59.1 MB. Max. memory is 7.1 GB. [2019-10-02 16:29:56,288 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 138.4 MB. Free memory was 104.4 MB in the beginning and 104.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 284.36 ms. Allocated memory is still 138.4 MB. Free memory was 85.4 MB in the beginning and 74.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 155.09 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 74.9 MB in the beginning and 174.6 MB in the end (delta: -99.7 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 406.74 ms. Allocated memory is still 198.7 MB. Free memory was 174.6 MB in the beginning and 153.6 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1009.22 ms. Allocated memory is still 198.7 MB. Free memory was 153.6 MB in the beginning and 94.5 MB in the end (delta: 59.1 MB). Peak memory consumption was 59.1 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 128 SDtfs, 7 SDslu, 60 SDs, 0 SdLazy, 35 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9013157894736842 AbsIntWeakeningRatio, 1.0789473684210527 AbsIntAvgWeakeningVarsNumRemoved, 0.15789473684210525 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 3600 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 7/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...