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/test_cut_trace.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:01:14,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:01:14,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:01:14,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-20 13:01:14,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:01:14,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:01:14,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:01:14,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:01:14,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:01:14,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:01:14,256 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:01:14,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:01:14,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:01:14,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:01:14,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:01:14,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:01:14,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 13:01:14,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:01:14,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:01:14,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:01:14,274 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 [2019-09-20 13:01:14,288 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:01:14,288 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:01:14,290 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 13:01:14,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 13:01:14,290 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 13:01:14,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:01:14,291 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:01:14,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 13:01:14,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:01:14,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:01:14,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:01:14,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:01:14,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:01:14,292 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:01:14,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:01:14,292 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 13:01:14,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:01:14,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:01:14,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:01:14,293 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 13:01:14,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 13:01:14,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:01:14,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:01:14,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:01:14,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 13:01:14,295 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 13:01:14,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:01:14,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 13:01:14,295 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:01:14,325 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:01:14,338 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:01:14,341 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:01:14,343 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:01:14,343 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:01:14,344 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_cut_trace.i [2019-09-20 13:01:14,406 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a25d166e/b6355577acf046a2bd89059d622ab275/FLAG8640905d4 [2019-09-20 13:01:14,832 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:01:14,833 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_cut_trace.i [2019-09-20 13:01:14,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a25d166e/b6355577acf046a2bd89059d622ab275/FLAG8640905d4 [2019-09-20 13:01:15,243 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a25d166e/b6355577acf046a2bd89059d622ab275 [2019-09-20 13:01:15,255 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:01:15,257 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:01:15,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:01:15,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:01:15,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:01:15,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:01:15" (1/1) ... [2019-09-20 13:01:15,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ab3a841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:01:15, skipping insertion in model container [2019-09-20 13:01:15,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:01:15" (1/1) ... [2019-09-20 13:01:15,274 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:01:15,289 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:01:15,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:01:15,471 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:01:15,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:01:15,498 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:01:15,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:01:15 WrapperNode [2019-09-20 13:01:15,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:01:15,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:01:15,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:01:15,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:01:15,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:01:15" (1/1) ... [2019-09-20 13:01:15,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:01:15" (1/1) ... [2019-09-20 13:01:15,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:01:15" (1/1) ... [2019-09-20 13:01:15,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:01:15" (1/1) ... [2019-09-20 13:01:15,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:01:15" (1/1) ... [2019-09-20 13:01:15,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:01:15" (1/1) ... [2019-09-20 13:01:15,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:01:15" (1/1) ... [2019-09-20 13:01:15,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:01:15,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:01:15,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:01:15,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:01:15,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:01:15" (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 [2019-09-20 13:01:15,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:01:15,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:01:15,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2019-09-20 13:01:15,656 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:01:15,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:01:15,656 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2019-09-20 13:01:15,656 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:01:15,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:01:15,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:01:15,783 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:01:15,784 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 13:01:15,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:01:15 BoogieIcfgContainer [2019-09-20 13:01:15,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:01:15,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:01:15,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:01:15,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:01:15,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:01:15" (1/3) ... [2019-09-20 13:01:15,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c7247a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:01:15, skipping insertion in model container [2019-09-20 13:01:15,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:01:15" (2/3) ... [2019-09-20 13:01:15,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c7247a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:01:15, skipping insertion in model container [2019-09-20 13:01:15,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:01:15" (3/3) ... [2019-09-20 13:01:15,793 INFO L109 eAbstractionObserver]: Analyzing ICFG test_cut_trace.i [2019-09-20 13:01:15,802 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:01:15,809 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:01:15,826 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:01:15,854 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 13:01:15,855 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:01:15,855 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 13:01:15,855 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:01:15,855 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:01:15,855 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:01:15,855 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:01:15,855 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:01:15,856 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:01:15,873 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-09-20 13:01:15,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-09-20 13:01:15,878 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:01:15,879 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:01:15,881 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:01:15,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:01:15,887 INFO L82 PathProgramCache]: Analyzing trace with hash -417355086, now seen corresponding path program 1 times [2019-09-20 13:01:15,888 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:01:15,888 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:01:15,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:01:15,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:01:15,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:01:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:01:16,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:01:16,021 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:01:16,021 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:01:16,024 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:01:16,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:01:16,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:01:16,036 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2019-09-20 13:01:16,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:01:16,098 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2019-09-20 13:01:16,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:01:16,100 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-09-20 13:01:16,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:01:16,112 INFO L225 Difference]: With dead ends: 29 [2019-09-20 13:01:16,112 INFO L226 Difference]: Without dead ends: 11 [2019-09-20 13:01:16,121 INFO L636 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 [2019-09-20 13:01:16,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-09-20 13:01:16,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-09-20 13:01:16,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-09-20 13:01:16,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2019-09-20 13:01:16,187 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 8 [2019-09-20 13:01:16,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:01:16,188 INFO L475 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2019-09-20 13:01:16,188 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:01:16,189 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2019-09-20 13:01:16,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-20 13:01:16,189 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:01:16,190 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:01:16,190 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:01:16,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:01:16,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1648524013, now seen corresponding path program 1 times [2019-09-20 13:01:16,191 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:01:16,191 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:01:16,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:01:16,193 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:01:16,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:01:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:01:16,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:01:16,277 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:01:16,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:01:16,279 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:01:16,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:01:16,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:01:16,280 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 4 states. [2019-09-20 13:01:16,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:01:16,314 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-09-20 13:01:16,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:01:16,314 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-09-20 13:01:16,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:01:16,315 INFO L225 Difference]: With dead ends: 11 [2019-09-20 13:01:16,315 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:01:16,316 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:01:16,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:01:16,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:01:16,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:01:16,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:01:16,317 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-09-20 13:01:16,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:01:16,318 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:01:16,318 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:01:16,318 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:01:16,318 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:01:16,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-20 13:01:16,346 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-09-20 13:01:16,346 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-20 13:01:16,346 INFO L443 ceAbstractionStarter]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-09-20 13:01:16,346 INFO L443 ceAbstractionStarter]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2019-09-20 13:01:16,347 INFO L443 ceAbstractionStarter]: For program point __blast_assertFINAL(lines 4 7) no Hoare annotation was computed. [2019-09-20 13:01:16,347 INFO L446 ceAbstractionStarter]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2019-09-20 13:01:16,347 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-20 13:01:16,347 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-20 13:01:16,351 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-20 13:01:16,352 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-20 13:01:16,352 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 13 20) the Hoare annotation is: true [2019-09-20 13:01:16,352 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 13 20) no Hoare annotation was computed. [2019-09-20 13:01:16,352 INFO L443 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2019-09-20 13:01:16,352 INFO L443 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2019-09-20 13:01:16,353 INFO L439 ceAbstractionStarter]: At program point L18-2(line 18) the Hoare annotation is: false [2019-09-20 13:01:16,353 INFO L443 ceAbstractionStarter]: For program point L18-3(line 18) no Hoare annotation was computed. [2019-09-20 13:01:16,353 INFO L439 ceAbstractionStarter]: At program point L16-2(line 16) the Hoare annotation is: false [2019-09-20 13:01:16,353 INFO L443 ceAbstractionStarter]: For program point L16-3(line 16) no Hoare annotation was computed. [2019-09-20 13:01:16,353 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 13 20) no Hoare annotation was computed. [2019-09-20 13:01:16,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:01:16 BoogieIcfgContainer [2019-09-20 13:01:16,357 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:01:16,360 INFO L168 Benchmark]: Toolchain (without parser) took 1102.60 ms. Allocated memory was 140.5 MB in the beginning and 198.2 MB in the end (delta: 57.7 MB). Free memory was 87.8 MB in the beginning and 134.2 MB in the end (delta: -46.4 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:01:16,364 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:01:16,365 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.61 ms. Allocated memory is still 140.5 MB. Free memory was 87.6 MB in the beginning and 78.6 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:01:16,367 INFO L168 Benchmark]: Boogie Preprocessor took 104.55 ms. Allocated memory was 140.5 MB in the beginning and 198.2 MB in the end (delta: 57.7 MB). Free memory was 78.6 MB in the beginning and 176.1 MB in the end (delta: -97.5 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:01:16,368 INFO L168 Benchmark]: RCFGBuilder took 180.93 ms. Allocated memory is still 198.2 MB. Free memory was 176.1 MB in the beginning and 166.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:01:16,369 INFO L168 Benchmark]: TraceAbstraction took 571.00 ms. Allocated memory is still 198.2 MB. Free memory was 165.9 MB in the beginning and 134.2 MB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:01:16,376 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 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 241.61 ms. Allocated memory is still 140.5 MB. Free memory was 87.6 MB in the beginning and 78.6 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.55 ms. Allocated memory was 140.5 MB in the beginning and 198.2 MB in the end (delta: 57.7 MB). Free memory was 78.6 MB in the beginning and 176.1 MB in the end (delta: -97.5 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 180.93 ms. Allocated memory is still 198.2 MB. Free memory was 176.1 MB in the beginning and 166.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 571.00 ms. Allocated memory is still 198.2 MB. Free memory was 165.9 MB in the beginning and 134.2 MB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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, 19 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 18 SDtfs, 7 SDslu, 16 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 7 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 306 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...