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/bitvector-regression/signextension-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-07 12:54:37,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-07 12:54:37,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-07 12:54:37,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-07 12:54:37,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-07 12:54:37,101 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-07 12:54:37,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-07 12:54:37,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-07 12:54:37,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-07 12:54:37,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-07 12:54:37,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-07 12:54:37,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-07 12:54:37,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-07 12:54:37,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-07 12:54:37,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-07 12:54:37,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-07 12:54:37,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-07 12:54:37,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-07 12:54:37,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-07 12:54:37,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-07 12:54:37,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-07 12:54:37,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-07 12:54:37,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-07 12:54:37,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-07 12:54:37,128 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-07 12:54:37,128 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-07 12:54:37,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-07 12:54:37,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-07 12:54:37,130 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-07 12:54:37,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-07 12:54:37,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-07 12:54:37,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-07 12:54:37,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-07 12:54:37,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-07 12:54:37,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-07 12:54:37,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-07 12:54:37,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-07 12:54:37,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-07 12:54:37,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-07 12:54:37,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-07 12:54:37,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-07 12:54:37,140 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-07 12:54:37,166 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-07 12:54:37,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-07 12:54:37,168 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-07 12:54:37,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-07 12:54:37,170 INFO L138 SettingsManager]: * Use SBE=true [2019-09-07 12:54:37,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-07 12:54:37,172 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-07 12:54:37,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-07 12:54:37,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-07 12:54:37,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-07 12:54:37,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-07 12:54:37,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-07 12:54:37,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-07 12:54:37,174 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-07 12:54:37,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-07 12:54:37,175 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-07 12:54:37,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-07 12:54:37,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-07 12:54:37,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-07 12:54:37,176 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-07 12:54:37,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-07 12:54:37,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-07 12:54:37,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-07 12:54:37,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-07 12:54:37,177 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-07 12:54:37,177 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-07 12:54:37,177 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-07 12:54:37,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-07 12:54:37,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-07 12:54:37,205 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-07 12:54:37,218 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-07 12:54:37,221 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-07 12:54:37,222 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-07 12:54:37,222 INFO L275 PluginConnector]: CDTParser initialized [2019-09-07 12:54:37,223 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/signextension-2.c [2019-09-07 12:54:37,279 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80aec4601/1a807b06a00944f2ad111dd62516fc7a/FLAG3c7c85e79 [2019-09-07 12:54:37,684 INFO L306 CDTParser]: Found 1 translation units. [2019-09-07 12:54:37,686 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/signextension-2.c [2019-09-07 12:54:37,692 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80aec4601/1a807b06a00944f2ad111dd62516fc7a/FLAG3c7c85e79 [2019-09-07 12:54:38,105 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80aec4601/1a807b06a00944f2ad111dd62516fc7a [2019-09-07 12:54:38,115 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-07 12:54:38,116 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-07 12:54:38,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-07 12:54:38,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-07 12:54:38,121 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-07 12:54:38,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 12:54:38" (1/1) ... [2019-09-07 12:54:38,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17d2497f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:54:38, skipping insertion in model container [2019-09-07 12:54:38,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 12:54:38" (1/1) ... [2019-09-07 12:54:38,131 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-07 12:54:38,147 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-07 12:54:38,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 12:54:38,357 INFO L188 MainTranslator]: Completed pre-run [2019-09-07 12:54:38,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 12:54:38,394 INFO L192 MainTranslator]: Completed translation [2019-09-07 12:54:38,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:54:38 WrapperNode [2019-09-07 12:54:38,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-07 12:54:38,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-07 12:54:38,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-07 12:54:38,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-07 12:54:38,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:54:38" (1/1) ... [2019-09-07 12:54:38,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:54:38" (1/1) ... [2019-09-07 12:54:38,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:54:38" (1/1) ... [2019-09-07 12:54:38,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:54:38" (1/1) ... [2019-09-07 12:54:38,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:54:38" (1/1) ... [2019-09-07 12:54:38,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:54:38" (1/1) ... [2019-09-07 12:54:38,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:54:38" (1/1) ... [2019-09-07 12:54:38,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-07 12:54:38,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-07 12:54:38,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-07 12:54:38,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-07 12:54:38,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:54:38" (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 [2019-09-07 12:54:38,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-07 12:54:38,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-07 12:54:38,604 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-07 12:54:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-07 12:54:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-07 12:54:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-07 12:54:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-07 12:54:38,734 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-07 12:54:38,734 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-07 12:54:38,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 12:54:38 BoogieIcfgContainer [2019-09-07 12:54:38,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-07 12:54:38,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-07 12:54:38,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-07 12:54:38,739 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-07 12:54:38,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 12:54:38" (1/3) ... [2019-09-07 12:54:38,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b561c5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 12:54:38, skipping insertion in model container [2019-09-07 12:54:38,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:54:38" (2/3) ... [2019-09-07 12:54:38,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b561c5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 12:54:38, skipping insertion in model container [2019-09-07 12:54:38,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 12:54:38" (3/3) ... [2019-09-07 12:54:38,742 INFO L109 eAbstractionObserver]: Analyzing ICFG signextension-2.c [2019-09-07 12:54:38,752 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-07 12:54:38,759 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-07 12:54:38,774 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-07 12:54:38,803 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-07 12:54:38,803 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-07 12:54:38,803 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-07 12:54:38,804 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-07 12:54:38,804 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-07 12:54:38,804 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-07 12:54:38,804 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-07 12:54:38,804 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-07 12:54:38,805 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-07 12:54:38,821 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-09-07 12:54:38,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-09-07 12:54:38,826 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 12:54:38,827 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-09-07 12:54:38,829 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 12:54:38,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 12:54:38,833 INFO L82 PathProgramCache]: Analyzing trace with hash 408836530, now seen corresponding path program 1 times [2019-09-07 12:54:38,834 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 12:54:38,835 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 12:54:38,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 12:54:38,871 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 12:54:38,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 12:54:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 12:54:39,335 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 26 [2019-09-07 12:54:39,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 12:54:39,341 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 12:54:39,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-07 12:54:39,345 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-07 12:54:39,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-07 12:54:39,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 12:54:39,360 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2019-09-07 12:54:39,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 12:54:39,379 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2019-09-07 12:54:39,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-07 12:54:39,381 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-09-07 12:54:39,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 12:54:39,386 INFO L225 Difference]: With dead ends: 16 [2019-09-07 12:54:39,386 INFO L226 Difference]: Without dead ends: 0 [2019-09-07 12:54:39,389 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 12:54:39,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-07 12:54:39,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-07 12:54:39,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-07 12:54:39,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-07 12:54:39,415 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-09-07 12:54:39,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 12:54:39,415 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-07 12:54:39,415 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-07 12:54:39,415 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-07 12:54:39,416 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-07 12:54:39,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-07 12:54:39,438 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-09-07 12:54:39,438 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-07 12:54:39,438 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-07 12:54:39,438 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-07 12:54:39,438 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-07 12:54:39,439 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-07 12:54:39,439 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 3 27) the Hoare annotation is: true [2019-09-07 12:54:39,439 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 3 27) no Hoare annotation was computed. [2019-09-07 12:54:39,439 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2019-09-07 12:54:39,440 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 3 27) no Hoare annotation was computed. [2019-09-07 12:54:39,440 INFO L439 ceAbstractionStarter]: At program point L21(lines 3 27) the Hoare annotation is: false [2019-09-07 12:54:39,440 INFO L443 ceAbstractionStarter]: For program point L19(lines 19 22) no Hoare annotation was computed. [2019-09-07 12:54:39,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.09 12:54:39 BoogieIcfgContainer [2019-09-07 12:54:39,447 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-07 12:54:39,450 INFO L168 Benchmark]: Toolchain (without parser) took 1332.82 ms. Allocated memory was 141.6 MB in the beginning and 202.9 MB in the end (delta: 61.3 MB). Free memory was 88.0 MB in the beginning and 135.2 MB in the end (delta: -47.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2019-09-07 12:54:39,451 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory was 106.3 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-07 12:54:39,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.24 ms. Allocated memory is still 141.6 MB. Free memory was 87.8 MB in the beginning and 78.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-09-07 12:54:39,453 INFO L168 Benchmark]: Boogie Preprocessor took 146.76 ms. Allocated memory was 141.6 MB in the beginning and 202.9 MB in the end (delta: 61.3 MB). Free memory was 78.8 MB in the beginning and 180.4 MB in the end (delta: -101.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-09-07 12:54:39,454 INFO L168 Benchmark]: RCFGBuilder took 193.56 ms. Allocated memory is still 202.9 MB. Free memory was 180.4 MB in the beginning and 170.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-09-07 12:54:39,455 INFO L168 Benchmark]: TraceAbstraction took 711.06 ms. Allocated memory is still 202.9 MB. Free memory was 170.7 MB in the beginning and 135.2 MB in the end (delta: 35.5 MB). Peak memory consumption was 35.5 MB. Max. memory is 7.1 GB. [2019-09-07 12:54:39,459 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory was 106.3 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 277.24 ms. Allocated memory is still 141.6 MB. Free memory was 87.8 MB in the beginning and 78.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 146.76 ms. Allocated memory was 141.6 MB in the beginning and 202.9 MB in the end (delta: 61.3 MB). Free memory was 78.8 MB in the beginning and 180.4 MB in the end (delta: -101.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 193.56 ms. Allocated memory is still 202.9 MB. Free memory was 180.4 MB in the beginning and 170.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 711.06 ms. Allocated memory is still 202.9 MB. Free memory was 170.7 MB in the beginning and 135.2 MB in the end (delta: 35.5 MB). Peak memory consumption was 35.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: 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: 3]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 5 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 234 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...