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-fea9116 [2019-09-20 12:57:36,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 12:57:36,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 12:57:36,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 12:57:36,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 12:57:36,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 12:57:36,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 12:57:36,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 12:57:36,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 12:57:36,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 12:57:36,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 12:57:36,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 12:57:36,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 12:57:36,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 12:57:36,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 12:57:36,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 12:57:36,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 12:57:36,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 12:57:36,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 12:57:36,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 12:57:36,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 12:57:36,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 12:57:36,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 12:57:36,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 12:57:36,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 12:57:36,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 12:57:36,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 12:57:36,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 12:57:36,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 12:57:36,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 12:57:36,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 12:57:36,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 12:57:36,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 12:57:36,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 12:57:36,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 12:57:36,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 12:57:36,514 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 12:57:36,529 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 12:57:36,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 12:57:36,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 12:57:36,530 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 12:57:36,531 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 12:57:36,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 12:57:36,531 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 12:57:36,531 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 12:57:36,532 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 12:57:36,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 12:57:36,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 12:57:36,532 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 12:57:36,532 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 12:57:36,532 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 12:57:36,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 12:57:36,533 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 12:57:36,533 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 12:57:36,533 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 12:57:36,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 12:57:36,534 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 12:57:36,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 12:57:36,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 12:57:36,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 12:57:36,534 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 12:57:36,535 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 12:57:36,535 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 12:57:36,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 12:57:36,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 12:57:36,535 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 12:57:36,577 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 12:57:36,588 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 12:57:36,592 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 12:57:36,594 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 12:57:36,594 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 12:57:36,595 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_02-1.c [2019-09-20 12:57:36,667 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9c9fa6f7/807a9ff5748e44c49abc71015ccbff88/FLAG0fcdb47ee [2019-09-20 12:57:37,136 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 12:57:37,139 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_02-1.c [2019-09-20 12:57:37,146 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9c9fa6f7/807a9ff5748e44c49abc71015ccbff88/FLAG0fcdb47ee [2019-09-20 12:57:37,497 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9c9fa6f7/807a9ff5748e44c49abc71015ccbff88 [2019-09-20 12:57:37,507 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 12:57:37,510 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 12:57:37,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 12:57:37,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 12:57:37,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 12:57:37,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:57:37" (1/1) ... [2019-09-20 12:57:37,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c79461a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:37, skipping insertion in model container [2019-09-20 12:57:37,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:57:37" (1/1) ... [2019-09-20 12:57:37,526 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 12:57:37,542 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 12:57:37,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 12:57:37,719 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 12:57:37,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 12:57:37,745 INFO L192 MainTranslator]: Completed translation [2019-09-20 12:57:37,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:37 WrapperNode [2019-09-20 12:57:37,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 12:57:37,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 12:57:37,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 12:57:37,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 12:57:37,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:37" (1/1) ... [2019-09-20 12:57:37,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:37" (1/1) ... [2019-09-20 12:57:37,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:37" (1/1) ... [2019-09-20 12:57:37,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:37" (1/1) ... [2019-09-20 12:57:37,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:37" (1/1) ... [2019-09-20 12:57:37,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:37" (1/1) ... [2019-09-20 12:57:37,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:37" (1/1) ... [2019-09-20 12:57:37,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 12:57:37,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 12:57:37,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 12:57:37,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 12:57:37,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:37" (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 12:57:37,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 12:57:37,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 12:57:37,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 12:57:37,927 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 12:57:37,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 12:57:37,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 12:57:37,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 12:57:37,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-20 12:57:37,928 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 12:57:37,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 12:57:37,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 12:57:38,110 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 12:57:38,111 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 12:57:38,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:57:38 BoogieIcfgContainer [2019-09-20 12:57:38,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 12:57:38,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 12:57:38,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 12:57:38,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 12:57:38,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 12:57:37" (1/3) ... [2019-09-20 12:57:38,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d520af2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:57:38, skipping insertion in model container [2019-09-20 12:57:38,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:37" (2/3) ... [2019-09-20 12:57:38,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d520af2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:57:38, skipping insertion in model container [2019-09-20 12:57:38,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:57:38" (3/3) ... [2019-09-20 12:57:38,121 INFO L109 eAbstractionObserver]: Analyzing ICFG terminator_02-1.c [2019-09-20 12:57:38,138 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 12:57:38,144 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 12:57:38,159 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 12:57:38,186 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 12:57:38,186 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 12:57:38,187 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 12:57:38,187 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 12:57:38,187 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 12:57:38,187 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 12:57:38,187 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 12:57:38,187 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 12:57:38,187 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 12:57:38,202 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-09-20 12:57:38,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-20 12:57:38,206 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:57:38,207 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:57:38,209 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:57:38,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:57:38,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1712329921, now seen corresponding path program 1 times [2019-09-20 12:57:38,215 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:57:38,216 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:57:38,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:38,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:57:38,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:38,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:57:38,324 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 12:57:38,326 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 12:57:38,327 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 12:57:38,331 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 12:57:38,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 12:57:38,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 12:57:38,348 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-09-20 12:57:38,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:57:38,370 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2019-09-20 12:57:38,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 12:57:38,372 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-09-20 12:57:38,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:57:38,380 INFO L225 Difference]: With dead ends: 31 [2019-09-20 12:57:38,381 INFO L226 Difference]: Without dead ends: 12 [2019-09-20 12:57:38,384 INFO L636 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 [2019-09-20 12:57:38,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-09-20 12:57:38,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-09-20 12:57:38,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-09-20 12:57:38,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2019-09-20 12:57:38,423 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 10 [2019-09-20 12:57:38,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:57:38,424 INFO L475 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2019-09-20 12:57:38,424 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 12:57:38,424 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-09-20 12:57:38,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-20 12:57:38,425 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:57:38,425 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:57:38,426 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:57:38,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:57:38,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1703094711, now seen corresponding path program 1 times [2019-09-20 12:57:38,426 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:57:38,427 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:57:38,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:38,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:57:38,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-20 12:57:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-20 12:57:38,477 INFO L474 BasicCegarLoop]: Counterexample might be feasible [2019-09-20 12:57:38,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 12:57:38 BoogieIcfgContainer [2019-09-20 12:57:38,502 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 12:57:38,505 INFO L168 Benchmark]: Toolchain (without parser) took 995.12 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 86.2 MB in the beginning and 142.3 MB in the end (delta: -56.2 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2019-09-20 12:57:38,507 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 104.4 MB in the beginning and 104.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-09-20 12:57:38,508 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.45 ms. Allocated memory is still 138.4 MB. Free memory was 86.0 MB in the beginning and 76.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-09-20 12:57:38,509 INFO L168 Benchmark]: Boogie Preprocessor took 119.15 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 76.6 MB in the beginning and 176.3 MB in the end (delta: -99.6 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-09-20 12:57:38,510 INFO L168 Benchmark]: RCFGBuilder took 246.57 ms. Allocated memory is still 198.7 MB. Free memory was 176.3 MB in the beginning and 164.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2019-09-20 12:57:38,512 INFO L168 Benchmark]: TraceAbstraction took 388.36 ms. Allocated memory is still 198.7 MB. Free memory was 164.1 MB in the beginning and 142.3 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-09-20 12:57:38,523 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 138.4 MB. Free memory was 104.4 MB in the beginning and 104.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 235.45 ms. Allocated memory is still 138.4 MB. Free memory was 86.0 MB in the beginning and 76.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.15 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 76.6 MB in the beginning and 176.3 MB in the end (delta: -99.6 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 246.57 ms. Allocated memory is still 198.7 MB. Free memory was 176.3 MB in the beginning and 164.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 388.36 ms. Allocated memory is still 198.7 MB. Free memory was 164.1 MB in the beginning and 142.3 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 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