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/loops/terminator_02-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 11:29:27,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 11:29:27,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 11:29:27,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 11:29:27,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 11:29:27,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 11:29:27,286 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 11:29:27,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 11:29:27,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 11:29:27,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 11:29:27,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 11:29:27,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 11:29:27,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 11:29:27,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 11:29:27,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 11:29:27,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 11:29:27,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 11:29:27,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 11:29:27,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 11:29:27,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 11:29:27,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 11:29:27,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 11:29:27,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 11:29:27,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 11:29:27,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 11:29:27,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 11:29:27,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 11:29:27,327 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 11:29:27,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 11:29:27,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 11:29:27,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 11:29:27,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 11:29:27,333 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 11:29:27,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 11:29:27,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 11:29:27,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 11:29:27,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 11:29:27,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 11:29:27,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 11:29:27,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 11:29:27,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 11:29:27,340 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 [2019-10-02 11:29:27,355 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 11:29:27,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 11:29:27,360 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 11:29:27,360 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 11:29:27,360 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 11:29:27,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 11:29:27,361 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 11:29:27,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 11:29:27,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 11:29:27,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 11:29:27,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 11:29:27,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 11:29:27,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 11:29:27,363 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 11:29:27,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 11:29:27,363 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 11:29:27,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 11:29:27,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 11:29:27,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 11:29:27,364 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 11:29:27,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 11:29:27,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 11:29:27,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 11:29:27,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 11:29:27,367 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 11:29:27,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 11:29:27,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 11:29:27,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 11:29:27,369 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 11:29:27,405 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 11:29:27,419 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 11:29:27,423 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 11:29:27,425 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 11:29:27,425 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 11:29:27,426 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_02-1.c [2019-10-02 11:29:27,502 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e4d83939/a398d372ee4e41978387eff278c8de89/FLAG25661f4fa [2019-10-02 11:29:27,949 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 11:29:27,950 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_02-1.c [2019-10-02 11:29:27,957 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e4d83939/a398d372ee4e41978387eff278c8de89/FLAG25661f4fa [2019-10-02 11:29:28,351 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e4d83939/a398d372ee4e41978387eff278c8de89 [2019-10-02 11:29:28,360 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 11:29:28,362 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 11:29:28,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 11:29:28,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 11:29:28,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 11:29:28,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:29:28" (1/1) ... [2019-10-02 11:29:28,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e7f8ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:29:28, skipping insertion in model container [2019-10-02 11:29:28,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:29:28" (1/1) ... [2019-10-02 11:29:28,377 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 11:29:28,393 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 11:29:28,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 11:29:28,549 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 11:29:28,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 11:29:28,575 INFO L192 MainTranslator]: Completed translation [2019-10-02 11:29:28,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:29:28 WrapperNode [2019-10-02 11:29:28,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 11:29:28,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 11:29:28,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 11:29:28,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 11:29:28,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:29:28" (1/1) ... [2019-10-02 11:29:28,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:29:28" (1/1) ... [2019-10-02 11:29:28,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:29:28" (1/1) ... [2019-10-02 11:29:28,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:29:28" (1/1) ... [2019-10-02 11:29:28,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:29:28" (1/1) ... [2019-10-02 11:29:28,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:29:28" (1/1) ... [2019-10-02 11:29:28,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:29:28" (1/1) ... [2019-10-02 11:29:28,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 11:29:28,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 11:29:28,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 11:29:28,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 11:29:28,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:29:28" (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 [2019-10-02 11:29:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 11:29:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 11:29:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-02 11:29:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 11:29:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 11:29:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-02 11:29:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 11:29:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-02 11:29:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 11:29:28,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 11:29:28,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 11:29:28,971 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 11:29:28,972 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-02 11:29:28,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:29:28 BoogieIcfgContainer [2019-10-02 11:29:28,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 11:29:28,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 11:29:28,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 11:29:28,978 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 11:29:28,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 11:29:28" (1/3) ... [2019-10-02 11:29:28,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@255e94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:29:28, skipping insertion in model container [2019-10-02 11:29:28,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:29:28" (2/3) ... [2019-10-02 11:29:28,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@255e94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:29:28, skipping insertion in model container [2019-10-02 11:29:28,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:29:28" (3/3) ... [2019-10-02 11:29:28,981 INFO L109 eAbstractionObserver]: Analyzing ICFG terminator_02-1.c [2019-10-02 11:29:28,990 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 11:29:28,996 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 11:29:29,012 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 11:29:29,047 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 11:29:29,048 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 11:29:29,049 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 11:29:29,049 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 11:29:29,049 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 11:29:29,049 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 11:29:29,049 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 11:29:29,050 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 11:29:29,050 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 11:29:29,070 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-10-02 11:29:29,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-02 11:29:29,076 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:29:29,077 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:29:29,080 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:29:29,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:29:29,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1712329921, now seen corresponding path program 1 times [2019-10-02 11:29:29,088 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:29:29,089 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:29:29,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:29:29,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:29:29,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:29:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:29:29,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 11:29:29,211 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 11:29:29,212 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 11:29:29,215 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 11:29:29,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 11:29:29,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 11:29:29,230 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-10-02 11:29:29,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:29:29,255 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2019-10-02 11:29:29,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 11:29:29,256 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-02 11:29:29,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:29:29,266 INFO L225 Difference]: With dead ends: 31 [2019-10-02 11:29:29,266 INFO L226 Difference]: Without dead ends: 12 [2019-10-02 11:29:29,270 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 11:29:29,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-10-02 11:29:29,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-10-02 11:29:29,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-10-02 11:29:29,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2019-10-02 11:29:29,322 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 10 [2019-10-02 11:29:29,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:29:29,323 INFO L475 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2019-10-02 11:29:29,323 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 11:29:29,324 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-10-02 11:29:29,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-02 11:29:29,326 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:29:29,327 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:29:29,327 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:29:29,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:29:29,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1703094711, now seen corresponding path program 1 times [2019-10-02 11:29:29,330 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:29:29,332 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:29:29,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:29:29,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:29:29,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:29:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-02 11:29:29,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-02 11:29:29,432 INFO L478 BasicCegarLoop]: Counterexample might be feasible [2019-10-02 11:29:29,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 11:29:29 BoogieIcfgContainer [2019-10-02 11:29:29,462 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 11:29:29,467 INFO L168 Benchmark]: Toolchain (without parser) took 1102.09 ms. Allocated memory was 132.6 MB in the beginning and 200.3 MB in the end (delta: 67.6 MB). Free memory was 88.7 MB in the beginning and 142.9 MB in the end (delta: -54.1 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2019-10-02 11:29:29,469 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 132.6 MB. Free memory was 106.8 MB in the beginning and 106.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 11:29:29,472 INFO L168 Benchmark]: CACSL2BoogieTranslator took 213.00 ms. Allocated memory is still 132.6 MB. Free memory was 88.3 MB in the beginning and 79.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-10-02 11:29:29,474 INFO L168 Benchmark]: Boogie Preprocessor took 126.94 ms. Allocated memory was 132.6 MB in the beginning and 200.3 MB in the end (delta: 67.6 MB). Free memory was 79.1 MB in the beginning and 176.6 MB in the end (delta: -97.5 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. [2019-10-02 11:29:29,476 INFO L168 Benchmark]: RCFGBuilder took 269.73 ms. Allocated memory is still 200.3 MB. Free memory was 176.6 MB in the beginning and 164.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2019-10-02 11:29:29,477 INFO L168 Benchmark]: TraceAbstraction took 487.81 ms. Allocated memory is still 200.3 MB. Free memory was 164.2 MB in the beginning and 142.9 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2019-10-02 11:29:29,489 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 132.6 MB. Free memory was 106.8 MB in the beginning and 106.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 213.00 ms. Allocated memory is still 132.6 MB. Free memory was 88.3 MB in the beginning and 79.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.94 ms. Allocated memory was 132.6 MB in the beginning and 200.3 MB in the end (delta: 67.6 MB). Free memory was 79.1 MB in the beginning and 176.6 MB in the end (delta: -97.5 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 269.73 ms. Allocated memory is still 200.3 MB. Free memory was 176.6 MB in the beginning and 164.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 487.81 ms. Allocated memory is still 200.3 MB. Free memory was 164.2 MB in the beginning and 142.9 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int x=__VERIFIER_nondet_int(); [L15] int y=__VERIFIER_nondet_int(); [L16] int z=__VERIFIER_nondet_int(); [L18] COND FALSE !(x<100 && 100