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/loop-invgen/nest-if3.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:33:06,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:33:06,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:33:06,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:33:06,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:33:06,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:33:06,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:33:06,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:33:06,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:33:06,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:33:06,285 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:33:06,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:33:06,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:33:06,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:33:06,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:33:06,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:33:06,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:33:06,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:33:06,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:33:06,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:33:06,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:33:06,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:33:06,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:33:06,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:33:06,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-03 02:33:06,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:33:06,305 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:33:06,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:33:06,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:33:06,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:33:06,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:33:06,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:33:06,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:33:06,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:33:06,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:33:06,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:33:06,311 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 [2019-10-03 02:33:06,325 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:33:06,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:33:06,326 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:33:06,326 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:33:06,327 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:33:06,327 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:33:06,327 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:33:06,328 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:33:06,328 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:33:06,328 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:33:06,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:33:06,329 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:33:06,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:33:06,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:33:06,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:33:06,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:33:06,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:33:06,330 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:33:06,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:33:06,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:33:06,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:33:06,331 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:33:06,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:33:06,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:33:06,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:33:06,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:33:06,332 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:33:06,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:33:06,333 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:33:06,333 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:33:06,374 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:33:06,385 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:33:06,389 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:33:06,390 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:33:06,390 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:33:06,391 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/nest-if3.i [2019-10-03 02:33:06,450 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff3b071c8/e8d5c5bfe1c9466abf536d15dc5e9010/FLAG62807d187 [2019-10-03 02:33:06,909 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:33:06,909 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/nest-if3.i [2019-10-03 02:33:06,916 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff3b071c8/e8d5c5bfe1c9466abf536d15dc5e9010/FLAG62807d187 [2019-10-03 02:33:07,321 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff3b071c8/e8d5c5bfe1c9466abf536d15dc5e9010 [2019-10-03 02:33:07,330 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:33:07,332 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:33:07,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:33:07,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:33:07,337 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:33:07,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:33:07" (1/1) ... [2019-10-03 02:33:07,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75521bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:33:07, skipping insertion in model container [2019-10-03 02:33:07,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:33:07" (1/1) ... [2019-10-03 02:33:07,350 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:33:07,368 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:33:07,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:33:07,588 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:33:07,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:33:07,629 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:33:07,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:33:07 WrapperNode [2019-10-03 02:33:07,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:33:07,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:33:07,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:33:07,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:33:07,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:33:07" (1/1) ... [2019-10-03 02:33:07,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:33:07" (1/1) ... [2019-10-03 02:33:07,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:33:07" (1/1) ... [2019-10-03 02:33:07,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:33:07" (1/1) ... [2019-10-03 02:33:07,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:33:07" (1/1) ... [2019-10-03 02:33:07,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:33:07" (1/1) ... [2019-10-03 02:33:07,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:33:07" (1/1) ... [2019-10-03 02:33:07,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:33:07,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:33:07,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:33:07,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:33:07,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:33:07" (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 [2019-10-03 02:33:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:33:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:33:07,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-03 02:33:07,811 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:33:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:33:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-03 02:33:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-03 02:33:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:33:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:33:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:33:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:33:08,022 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:33:08,022 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-03 02:33:08,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:33:08 BoogieIcfgContainer [2019-10-03 02:33:08,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:33:08,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:33:08,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:33:08,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:33:08,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:33:07" (1/3) ... [2019-10-03 02:33:08,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b03be42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:33:08, skipping insertion in model container [2019-10-03 02:33:08,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:33:07" (2/3) ... [2019-10-03 02:33:08,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b03be42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:33:08, skipping insertion in model container [2019-10-03 02:33:08,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:33:08" (3/3) ... [2019-10-03 02:33:08,032 INFO L109 eAbstractionObserver]: Analyzing ICFG nest-if3.i [2019-10-03 02:33:08,051 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:33:08,069 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:33:08,106 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:33:08,146 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:33:08,147 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:33:08,147 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:33:08,147 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:33:08,147 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:33:08,148 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:33:08,148 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:33:08,148 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:33:08,165 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-10-03 02:33:08,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-03 02:33:08,177 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:33:08,178 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:33:08,181 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:33:08,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:33:08,187 INFO L82 PathProgramCache]: Analyzing trace with hash -158879193, now seen corresponding path program 1 times [2019-10-03 02:33:08,189 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:33:08,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:33:08,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:33:08,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:33:08,243 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:33:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:33:08,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:33:08,406 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:33:08,406 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:33:08,406 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:33:08,411 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:33:08,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:33:08,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:33:08,425 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 6 states. [2019-10-03 02:33:08,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:33:08,559 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2019-10-03 02:33:08,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:33:08,561 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-10-03 02:33:08,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:33:08,568 INFO L225 Difference]: With dead ends: 28 [2019-10-03 02:33:08,569 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:33:08,571 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:33:08,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:33:08,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:33:08,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:33:08,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:33:08,598 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-10-03 02:33:08,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:33:08,599 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:33:08,599 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:33:08,599 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:33:08,599 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:33:08,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:33:08 BoogieIcfgContainer [2019-10-03 02:33:08,605 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:33:08,608 INFO L168 Benchmark]: Toolchain (without parser) took 1274.96 ms. Allocated memory was 140.5 MB in the beginning and 200.8 MB in the end (delta: 60.3 MB). Free memory was 86.6 MB in the beginning and 135.9 MB in the end (delta: -49.3 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:33:08,609 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:33:08,610 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.76 ms. Allocated memory is still 140.5 MB. Free memory was 86.4 MB in the beginning and 77.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:33:08,612 INFO L168 Benchmark]: Boogie Preprocessor took 125.15 ms. Allocated memory was 140.5 MB in the beginning and 200.8 MB in the end (delta: 60.3 MB). Free memory was 77.0 MB in the beginning and 178.0 MB in the end (delta: -101.0 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:33:08,613 INFO L168 Benchmark]: RCFGBuilder took 267.54 ms. Allocated memory is still 200.8 MB. Free memory was 177.4 MB in the beginning and 165.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:33:08,614 INFO L168 Benchmark]: TraceAbstraction took 579.96 ms. Allocated memory is still 200.8 MB. Free memory was 164.8 MB in the beginning and 135.9 MB in the end (delta: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:33:08,618 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 140.5 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 297.76 ms. Allocated memory is still 140.5 MB. Free memory was 86.4 MB in the beginning and 77.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.15 ms. Allocated memory was 140.5 MB in the beginning and 200.8 MB in the end (delta: 60.3 MB). Free memory was 77.0 MB in the beginning and 178.0 MB in the end (delta: -101.0 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 267.54 ms. Allocated memory is still 200.8 MB. Free memory was 177.4 MB in the beginning and 165.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 579.96 ms. Allocated memory is still 200.8 MB. Free memory was 164.8 MB in the beginning and 135.9 MB in the end (delta: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 SDtfs, 21 SDslu, 71 SDs, 0 SdLazy, 38 SolverSat, 6 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, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 377 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...