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/loops/terminator_02-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:49:19,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:49:19,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:49:19,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-10 01:49:19,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:49:19,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:49:19,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:49:19,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:49:19,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:49:19,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:49:19,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:49:19,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:49:19,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:49:19,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:49:19,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:49:19,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:49:19,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-10 01:49:19,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:49:19,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:49:19,516 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:49:19,517 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 [2019-09-10 01:49:19,531 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:49:19,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:49:19,532 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:49:19,532 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:49:19,533 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:49:19,533 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:49:19,533 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:49:19,533 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:49:19,533 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:49:19,534 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:49:19,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:49:19,535 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:49:19,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:49:19,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:49:19,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:49:19,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:49:19,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:49:19,537 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:49:19,537 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:49:19,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:49:19,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:49:19,538 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:49:19,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:49:19,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:49:19,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:49:19,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:49:19,539 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:49:19,539 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:49:19,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:49:19,539 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:49:19,593 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:49:19,605 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:49:19,608 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:49:19,610 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:49:19,610 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:49:19,611 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_02-1.c [2019-09-10 01:49:19,671 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d78e2adbe/e8f48dfd23954d2c9a43d6e4b6216679/FLAGc48df2156 [2019-09-10 01:49:20,151 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:49:20,152 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_02-1.c [2019-09-10 01:49:20,158 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d78e2adbe/e8f48dfd23954d2c9a43d6e4b6216679/FLAGc48df2156 [2019-09-10 01:49:20,541 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d78e2adbe/e8f48dfd23954d2c9a43d6e4b6216679 [2019-09-10 01:49:20,552 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:49:20,553 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:49:20,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:49:20,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:49:20,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:49:20,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:49:20" (1/1) ... [2019-09-10 01:49:20,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53ea6fff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:49:20, skipping insertion in model container [2019-09-10 01:49:20,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:49:20" (1/1) ... [2019-09-10 01:49:20,570 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:49:20,588 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:49:20,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:49:20,784 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:49:20,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:49:20,811 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:49:20,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:49:20 WrapperNode [2019-09-10 01:49:20,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:49:20,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:49:20,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:49:20,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:49:20,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:49:20" (1/1) ... [2019-09-10 01:49:20,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:49:20" (1/1) ... [2019-09-10 01:49:20,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:49:20" (1/1) ... [2019-09-10 01:49:20,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:49:20" (1/1) ... [2019-09-10 01:49:20,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:49:20" (1/1) ... [2019-09-10 01:49:20,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:49:20" (1/1) ... [2019-09-10 01:49:20,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:49:20" (1/1) ... [2019-09-10 01:49:20,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:49:20,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:49:20,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:49:20,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:49:20,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:49:20" (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 [2019-09-10 01:49:20,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:49:20,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:49:20,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-10 01:49:20,986 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:49:20,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:49:20,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-10 01:49:20,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 01:49:20,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-10 01:49:20,986 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:49:20,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:49:20,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:49:21,156 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:49:21,156 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-10 01:49:21,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:49:21 BoogieIcfgContainer [2019-09-10 01:49:21,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:49:21,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:49:21,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:49:21,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:49:21,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:49:20" (1/3) ... [2019-09-10 01:49:21,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14859e56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:49:21, skipping insertion in model container [2019-09-10 01:49:21,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:49:20" (2/3) ... [2019-09-10 01:49:21,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14859e56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:49:21, skipping insertion in model container [2019-09-10 01:49:21,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:49:21" (3/3) ... [2019-09-10 01:49:21,164 INFO L109 eAbstractionObserver]: Analyzing ICFG terminator_02-1.c [2019-09-10 01:49:21,174 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:49:21,182 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:49:21,199 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:49:21,227 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:49:21,227 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:49:21,227 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:49:21,227 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:49:21,227 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:49:21,228 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:49:21,228 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:49:21,228 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:49:21,243 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-09-10 01:49:21,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-10 01:49:21,251 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:49:21,252 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:49:21,253 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:49:21,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:49:21,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1712329921, now seen corresponding path program 1 times [2019-09-10 01:49:21,260 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:49:21,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:49:21,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:49:21,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:49:21,301 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:49:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:49:21,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:49:21,368 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:49:21,368 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 01:49:21,368 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:49:21,373 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:49:21,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:49:21,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:49:21,389 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-09-10 01:49:21,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:49:21,403 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-09-10 01:49:21,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:49:21,405 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-09-10 01:49:21,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:49:21,412 INFO L225 Difference]: With dead ends: 19 [2019-09-10 01:49:21,412 INFO L226 Difference]: Without dead ends: 12 [2019-09-10 01:49:21,414 INFO L628 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 [2019-09-10 01:49:21,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-09-10 01:49:21,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-09-10 01:49:21,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-09-10 01:49:21,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2019-09-10 01:49:21,448 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 10 [2019-09-10 01:49:21,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:49:21,448 INFO L475 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2019-09-10 01:49:21,448 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:49:21,449 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-09-10 01:49:21,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-10 01:49:21,449 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:49:21,449 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:49:21,450 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:49:21,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:49:21,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1703094711, now seen corresponding path program 1 times [2019-09-10 01:49:21,451 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:49:21,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:49:21,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:49:21,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:49:21,452 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:49:21,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 01:49:21,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 01:49:21,494 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 01:49:21,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:49:21 BoogieIcfgContainer [2019-09-10 01:49:21,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:49:21,519 INFO L168 Benchmark]: Toolchain (without parser) took 964.71 ms. Allocated memory was 135.8 MB in the beginning and 201.9 MB in the end (delta: 66.1 MB). Free memory was 91.4 MB in the beginning and 145.9 MB in the end (delta: -54.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-09-10 01:49:21,520 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 135.8 MB. Free memory is still 109.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 01:49:21,521 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.45 ms. Allocated memory is still 135.8 MB. Free memory was 91.0 MB in the beginning and 82.0 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-09-10 01:49:21,522 INFO L168 Benchmark]: Boogie Preprocessor took 114.43 ms. Allocated memory was 135.8 MB in the beginning and 201.9 MB in the end (delta: 66.1 MB). Free memory was 82.0 MB in the beginning and 178.5 MB in the end (delta: -96.5 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-09-10 01:49:21,523 INFO L168 Benchmark]: RCFGBuilder took 231.17 ms. Allocated memory is still 201.9 MB. Free memory was 178.5 MB in the beginning and 166.3 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:49:21,524 INFO L168 Benchmark]: TraceAbstraction took 357.47 ms. Allocated memory is still 201.9 MB. Free memory was 166.3 MB in the beginning and 145.9 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-09-10 01:49:21,527 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 135.8 MB. Free memory is still 109.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 257.45 ms. Allocated memory is still 135.8 MB. Free memory was 91.0 MB in the beginning and 82.0 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.43 ms. Allocated memory was 135.8 MB in the beginning and 201.9 MB in the end (delta: 66.1 MB). Free memory was 82.0 MB in the beginning and 178.5 MB in the end (delta: -96.5 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 231.17 ms. Allocated memory is still 201.9 MB. Free memory was 178.5 MB in the beginning and 166.3 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 357.47 ms. Allocated memory is still 201.9 MB. Free memory was 166.3 MB in the beginning and 145.9 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 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