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/ldv-regression/test04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 16:23:34,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 16:23:34,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 16:23:34,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 16:23:34,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 16:23:34,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 16:23:34,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 16:23:34,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 16:23:34,620 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 16:23:34,621 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 16:23:34,622 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 16:23:34,623 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 16:23:34,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 16:23:34,624 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 16:23:34,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 16:23:34,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 16:23:34,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 16:23:34,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 16:23:34,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 16:23:34,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 16:23:34,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 16:23:34,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 16:23:34,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 16:23:34,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 16:23:34,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 16:23:34,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 16:23:34,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 16:23:34,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 16:23:34,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 16:23:34,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 16:23:34,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 16:23:34,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 16:23:34,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 16:23:34,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 16:23:34,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 16:23:34,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 16:23:34,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 16:23:34,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 16:23:34,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 16:23:34,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 16:23:34,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 16:23:34,648 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 [2019-09-16 16:23:34,662 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 16:23:34,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 16:23:34,664 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-16 16:23:34,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-16 16:23:34,664 INFO L138 SettingsManager]: * Use SBE=true [2019-09-16 16:23:34,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 16:23:34,665 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 16:23:34,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-16 16:23:34,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 16:23:34,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 16:23:34,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 16:23:34,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 16:23:34,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 16:23:34,666 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 16:23:34,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 16:23:34,666 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-16 16:23:34,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 16:23:34,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 16:23:34,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 16:23:34,667 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-16 16:23:34,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-16 16:23:34,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 16:23:34,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 16:23:34,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 16:23:34,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-16 16:23:34,668 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-16 16:23:34,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 16:23:34,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-16 16:23:34,669 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 16:23:34,696 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 16:23:34,708 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 16:23:34,711 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 16:23:34,713 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 16:23:34,713 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 16:23:34,714 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test04.c [2019-09-16 16:23:34,771 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dd5962ee/c78fb413eb624db499526ca77b8f98f9/FLAGc0b25b4b0 [2019-09-16 16:23:35,186 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 16:23:35,188 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test04.c [2019-09-16 16:23:35,194 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dd5962ee/c78fb413eb624db499526ca77b8f98f9/FLAGc0b25b4b0 [2019-09-16 16:23:35,587 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dd5962ee/c78fb413eb624db499526ca77b8f98f9 [2019-09-16 16:23:35,597 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 16:23:35,599 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 16:23:35,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 16:23:35,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 16:23:35,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 16:23:35,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 04:23:35" (1/1) ... [2019-09-16 16:23:35,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4da4387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:23:35, skipping insertion in model container [2019-09-16 16:23:35,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 04:23:35" (1/1) ... [2019-09-16 16:23:35,615 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 16:23:35,630 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 16:23:35,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 16:23:35,877 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 16:23:35,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 16:23:35,914 INFO L192 MainTranslator]: Completed translation [2019-09-16 16:23:35,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:23:35 WrapperNode [2019-09-16 16:23:35,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 16:23:35,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 16:23:35,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 16:23:35,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 16:23:36,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:23:35" (1/1) ... [2019-09-16 16:23:36,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:23:35" (1/1) ... [2019-09-16 16:23:36,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:23:35" (1/1) ... [2019-09-16 16:23:36,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:23:35" (1/1) ... [2019-09-16 16:23:36,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:23:35" (1/1) ... [2019-09-16 16:23:36,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:23:35" (1/1) ... [2019-09-16 16:23:36,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:23:35" (1/1) ... [2019-09-16 16:23:36,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 16:23:36,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 16:23:36,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 16:23:36,072 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 16:23:36,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:23:35" (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 [2019-09-16 16:23:36,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 16:23:36,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 16:23:36,138 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-09-16 16:23:36,138 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 16:23:36,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 16:23:36,139 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-09-16 16:23:36,139 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 16:23:36,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 16:23:36,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 16:23:36,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 16:23:36,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 16:23:36,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 16:23:36,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 16:23:36,353 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 16:23:36,353 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-16 16:23:36,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 04:23:36 BoogieIcfgContainer [2019-09-16 16:23:36,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 16:23:36,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 16:23:36,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 16:23:36,371 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 16:23:36,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 04:23:35" (1/3) ... [2019-09-16 16:23:36,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3038df8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 04:23:36, skipping insertion in model container [2019-09-16 16:23:36,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:23:35" (2/3) ... [2019-09-16 16:23:36,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3038df8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 04:23:36, skipping insertion in model container [2019-09-16 16:23:36,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 04:23:36" (3/3) ... [2019-09-16 16:23:36,380 INFO L109 eAbstractionObserver]: Analyzing ICFG test04.c [2019-09-16 16:23:36,409 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 16:23:36,427 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 16:23:36,463 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 16:23:36,496 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-16 16:23:36,497 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 16:23:36,497 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-16 16:23:36,497 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 16:23:36,497 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 16:23:36,497 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 16:23:36,498 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 16:23:36,498 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 16:23:36,498 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 16:23:36,516 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-09-16 16:23:36,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-16 16:23:36,522 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:23:36,523 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:23:36,524 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:23:36,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:23:36,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1498735640, now seen corresponding path program 1 times [2019-09-16 16:23:36,530 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:23:36,531 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:23:36,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:23:36,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:23:36,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:23:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:23:36,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 16:23:36,825 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:23:36,825 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 16:23:36,829 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 16:23:36,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 16:23:36,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 16:23:36,841 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 6 states. [2019-09-16 16:23:36,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:23:36,947 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-09-16 16:23:36,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 16:23:36,949 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2019-09-16 16:23:36,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:23:36,957 INFO L225 Difference]: With dead ends: 22 [2019-09-16 16:23:36,957 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 16:23:36,962 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-09-16 16:23:36,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 16:23:36,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 16:23:36,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 16:23:36,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 16:23:36,986 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-09-16 16:23:36,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:23:36,987 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 16:23:36,987 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 16:23:36,987 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 16:23:36,987 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 16:23:36,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-16 16:23:37,021 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-09-16 16:23:37,022 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-09-16 16:23:37,022 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-16 16:23:37,022 INFO L443 ceAbstractionStarter]: For program point fEXIT(lines 4 6) no Hoare annotation was computed. [2019-09-16 16:23:37,022 INFO L446 ceAbstractionStarter]: At program point fENTRY(lines 4 6) the Hoare annotation is: true [2019-09-16 16:23:37,023 INFO L443 ceAbstractionStarter]: For program point fFINAL(lines 4 6) no Hoare annotation was computed. [2019-09-16 16:23:37,023 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-16 16:23:37,023 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-16 16:23:37,023 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-16 16:23:37,023 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-16 16:23:37,024 INFO L439 ceAbstractionStarter]: At program point L17(lines 8 24) the Hoare annotation is: false [2019-09-16 16:23:37,024 INFO L443 ceAbstractionStarter]: For program point L16(lines 16 18) no Hoare annotation was computed. [2019-09-16 16:23:37,024 INFO L439 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (and (= main_~p1~0.base |main_~#a~0.base|) (not (= main_~p1~0.base main_~p2~0.base)) (= main_~p1~0.offset |main_~#a~0.offset|)) [2019-09-16 16:23:37,024 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 8 24) the Hoare annotation is: true [2019-09-16 16:23:37,025 INFO L443 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2019-09-16 16:23:37,025 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 8 24) no Hoare annotation was computed. [2019-09-16 16:23:37,025 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 8 24) no Hoare annotation was computed. [2019-09-16 16:23:37,025 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2019-09-16 16:23:37,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 04:23:37 BoogieIcfgContainer [2019-09-16 16:23:37,033 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 16:23:37,036 INFO L168 Benchmark]: Toolchain (without parser) took 1436.42 ms. Allocated memory was 139.5 MB in the beginning and 200.3 MB in the end (delta: 60.8 MB). Free memory was 86.7 MB in the beginning and 130.0 MB in the end (delta: -43.3 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. [2019-09-16 16:23:37,037 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 16:23:37,038 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.20 ms. Allocated memory is still 139.5 MB. Free memory was 86.5 MB in the beginning and 77.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-09-16 16:23:37,040 INFO L168 Benchmark]: Boogie Preprocessor took 156.23 ms. Allocated memory was 139.5 MB in the beginning and 200.3 MB in the end (delta: 60.8 MB). Free memory was 77.0 MB in the beginning and 177.7 MB in the end (delta: -100.7 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-09-16 16:23:37,041 INFO L168 Benchmark]: RCFGBuilder took 287.96 ms. Allocated memory is still 200.3 MB. Free memory was 177.7 MB in the beginning and 164.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2019-09-16 16:23:37,042 INFO L168 Benchmark]: TraceAbstraction took 672.67 ms. Allocated memory is still 200.3 MB. Free memory was 164.1 MB in the beginning and 130.0 MB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. [2019-09-16 16:23:37,046 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 139.5 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 315.20 ms. Allocated memory is still 139.5 MB. Free memory was 86.5 MB in the beginning and 77.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 156.23 ms. Allocated memory was 139.5 MB in the beginning and 200.3 MB in the end (delta: 60.8 MB). Free memory was 77.0 MB in the beginning and 177.7 MB in the end (delta: -100.7 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 287.96 ms. Allocated memory is still 200.3 MB. Free memory was 177.7 MB in the beginning and 164.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 672.67 ms. Allocated memory is still 200.3 MB. Free memory was 164.1 MB in the beginning and 130.0 MB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 0 SDslu, 43 SDs, 0 SdLazy, 13 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 17 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 540 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...