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/ldv-regression/test21-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:28:40,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:28:40,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:28:40,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-20 13:28:40,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:28:40,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:28:40,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:28:40,174 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:28:40,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:28:40,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:28:40,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:28:40,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:28:40,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:28:40,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:28:40,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:28:40,195 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:28:40,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 13:28:40,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:28:40,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:28:40,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:28:40,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:28:40,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:28:40,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:28:40,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:28:40,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:28:40,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:28:40,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:28:40,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:28:40,212 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 [2019-09-20 13:28:40,246 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:28:40,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:28:40,247 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:28:40,250 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:28:40,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:28:40,251 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:28:40,251 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:28:40,252 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:28:40,252 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:28:40,254 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:28:40,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:28:40,256 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:28:40,256 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:28:40,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:28:40,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:28:40,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:28:40,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:28:40,257 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:28:40,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:28:40,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:28:40,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:28:40,261 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:28:40,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:28:40,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:28:40,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:28:40,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:28:40,262 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:28:40,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:28:40,262 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:28:40,262 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:28:40,313 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:28:40,333 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:28:40,337 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:28:40,341 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:28:40,341 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:28:40,342 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test21-1.c [2019-09-20 13:28:40,413 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/643d217d6/6098a15dedc9403f92e260db04f50024/FLAGa060c7cca [2019-09-20 13:28:40,841 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:28:40,842 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test21-1.c [2019-09-20 13:28:40,849 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/643d217d6/6098a15dedc9403f92e260db04f50024/FLAGa060c7cca [2019-09-20 13:28:41,190 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/643d217d6/6098a15dedc9403f92e260db04f50024 [2019-09-20 13:28:41,201 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:28:41,202 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:28:41,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:41,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:28:41,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:28:41,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:41" (1/1) ... [2019-09-20 13:28:41,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@697ecef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:41, skipping insertion in model container [2019-09-20 13:28:41,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:41" (1/1) ... [2019-09-20 13:28:41,219 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:28:41,237 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:28:41,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:41,439 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:28:41,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:41,565 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:28:41,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:41 WrapperNode [2019-09-20 13:28:41,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:41,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:28:41,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:28:41,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:28:41,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:41" (1/1) ... [2019-09-20 13:28:41,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:41" (1/1) ... [2019-09-20 13:28:41,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:41" (1/1) ... [2019-09-20 13:28:41,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:41" (1/1) ... [2019-09-20 13:28:41,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:41" (1/1) ... [2019-09-20 13:28:41,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:41" (1/1) ... [2019-09-20 13:28:41,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:41" (1/1) ... [2019-09-20 13:28:41,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:28:41,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:28:41,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:28:41,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:28:41,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:41" (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 13:28:41,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:28:41,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:28:41,664 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-09-20 13:28:41,664 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2019-09-20 13:28:41,664 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-09-20 13:28:41,665 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:28:41,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:28:41,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:28:41,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-20 13:28:41,665 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-20 13:28:41,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:28:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2019-09-20 13:28:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-20 13:28:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:28:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:28:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:28:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:28:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:28:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:28:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:28:41,910 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:28:41,910 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 13:28:41,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:41 BoogieIcfgContainer [2019-09-20 13:28:41,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:28:41,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:28:41,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:28:41,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:28:41,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:28:41" (1/3) ... [2019-09-20 13:28:41,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c12a8c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:28:41, skipping insertion in model container [2019-09-20 13:28:41,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:41" (2/3) ... [2019-09-20 13:28:41,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c12a8c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:28:41, skipping insertion in model container [2019-09-20 13:28:41,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:41" (3/3) ... [2019-09-20 13:28:41,921 INFO L109 eAbstractionObserver]: Analyzing ICFG test21-1.c [2019-09-20 13:28:41,933 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:28:41,945 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:28:41,980 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:28:42,016 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:28:42,016 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:28:42,016 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:28:42,016 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:28:42,016 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:28:42,017 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:28:42,017 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:28:42,017 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:28:42,033 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-09-20 13:28:42,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-09-20 13:28:42,046 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:42,047 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:42,050 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:42,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:42,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1351082661, now seen corresponding path program 1 times [2019-09-20 13:28:42,058 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:42,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:42,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:42,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:42,116 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:42,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:42,491 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-20 13:28:42,494 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:42,495 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-20 13:28:42,495 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:42,499 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-20 13:28:42,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-20 13:28:42,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:28:42,513 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 10 states. [2019-09-20 13:28:42,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:42,832 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2019-09-20 13:28:42,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-20 13:28:42,835 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2019-09-20 13:28:42,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:42,845 INFO L225 Difference]: With dead ends: 50 [2019-09-20 13:28:42,846 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:28:42,851 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2019-09-20 13:28:42,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:28:42,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:28:42,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:28:42,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:28:42,880 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2019-09-20 13:28:42,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:42,880 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:28:42,880 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-20 13:28:42,881 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:28:42,881 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:28:42,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:28:42 BoogieIcfgContainer [2019-09-20 13:28:42,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:28:42,889 INFO L168 Benchmark]: Toolchain (without parser) took 1685.50 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 86.0 MB in the beginning and 97.8 MB in the end (delta: -11.8 MB). Peak memory consumption was 48.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:42,890 INFO L168 Benchmark]: CDTParser took 0.99 ms. Allocated memory is still 138.4 MB. Free memory was 104.3 MB in the beginning and 104.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:28:42,891 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.83 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 85.8 MB in the beginning and 178.1 MB in the end (delta: -92.3 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:42,892 INFO L168 Benchmark]: Boogie Preprocessor took 43.05 ms. Allocated memory is still 198.7 MB. Free memory was 177.1 MB in the beginning and 174.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:42,893 INFO L168 Benchmark]: RCFGBuilder took 302.48 ms. Allocated memory is still 198.7 MB. Free memory was 174.7 MB in the beginning and 158.7 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:42,894 INFO L168 Benchmark]: TraceAbstraction took 972.74 ms. Allocated memory is still 198.7 MB. Free memory was 158.0 MB in the beginning and 97.8 MB in the end (delta: 60.2 MB). Peak memory consumption was 60.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:42,898 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.99 ms. Allocated memory is still 138.4 MB. Free memory was 104.3 MB in the beginning and 104.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 362.83 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 85.8 MB in the beginning and 178.1 MB in the end (delta: -92.3 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.05 ms. Allocated memory is still 198.7 MB. Free memory was 177.1 MB in the beginning and 174.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 302.48 ms. Allocated memory is still 198.7 MB. Free memory was 174.7 MB in the beginning and 158.7 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 972.74 ms. Allocated memory is still 198.7 MB. Free memory was 158.0 MB in the beginning and 97.8 MB in the end (delta: 60.2 MB). Peak memory consumption was 60.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: 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 6 procedures, 31 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 17 SDslu, 195 SDs, 0 SdLazy, 118 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 0.2s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 3360 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...