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/recursive-simple/afterrec-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:52:10,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:52:10,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:52:10,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-10 02:52:10,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:52:10,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:52:10,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:52:10,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:52:10,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:52:10,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:52:10,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:52:10,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:52:10,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:52:10,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:52:10,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:52:10,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:52:10,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-10 02:52:10,546 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 02:52:10,571 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:52:10,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:52:10,572 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:52:10,573 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:52:10,573 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:52:10,574 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:52:10,574 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:52:10,574 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:52:10,574 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:52:10,574 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:52:10,577 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:52:10,577 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:52:10,578 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:52:10,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:52:10,578 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:52:10,578 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:52:10,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:52:10,579 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:52:10,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:52:10,579 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:52:10,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:52:10,580 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:52:10,580 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:52:10,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:52:10,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:52:10,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:52:10,581 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:52:10,581 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:52:10,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:52:10,581 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:52:10,634 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:52:10,652 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:52:10,656 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:52:10,658 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:52:10,659 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:52:10,660 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/afterrec-2.c [2019-09-10 02:52:10,734 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa0699c6a/cd984ba0c5704806b2ad2aeb4cfdd2fd/FLAG50580e1ba [2019-09-10 02:52:11,203 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:52:11,204 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/afterrec-2.c [2019-09-10 02:52:11,212 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa0699c6a/cd984ba0c5704806b2ad2aeb4cfdd2fd/FLAG50580e1ba [2019-09-10 02:52:11,581 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa0699c6a/cd984ba0c5704806b2ad2aeb4cfdd2fd [2019-09-10 02:52:11,590 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:52:11,592 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:52:11,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:52:11,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:52:11,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:52:11,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:52:11" (1/1) ... [2019-09-10 02:52:11,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f6813f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:52:11, skipping insertion in model container [2019-09-10 02:52:11,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:52:11" (1/1) ... [2019-09-10 02:52:11,608 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:52:11,626 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:52:11,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:52:11,777 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:52:11,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:52:11,803 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:52:11,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:52:11 WrapperNode [2019-09-10 02:52:11,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:52:11,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:52:11,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:52:11,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:52:11,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:52:11" (1/1) ... [2019-09-10 02:52:11,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:52:11" (1/1) ... [2019-09-10 02:52:11,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:52:11" (1/1) ... [2019-09-10 02:52:11,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:52:11" (1/1) ... [2019-09-10 02:52:11,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:52:11" (1/1) ... [2019-09-10 02:52:11,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:52:11" (1/1) ... [2019-09-10 02:52:11,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:52:11" (1/1) ... [2019-09-10 02:52:11,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:52:11,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:52:11,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:52:11,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:52:11,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:52:11" (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 02:52:11,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:52:11,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:52:11,978 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-09-10 02:52:11,979 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:52:11,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:52:11,979 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-09-10 02:52:11,979 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:52:11,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:52:11,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:52:12,110 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:52:12,110 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 02:52:12,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:52:12 BoogieIcfgContainer [2019-09-10 02:52:12,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:52:12,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:52:12,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:52:12,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:52:12,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:52:11" (1/3) ... [2019-09-10 02:52:12,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d3ee22f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:52:12, skipping insertion in model container [2019-09-10 02:52:12,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:52:11" (2/3) ... [2019-09-10 02:52:12,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d3ee22f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:52:12, skipping insertion in model container [2019-09-10 02:52:12,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:52:12" (3/3) ... [2019-09-10 02:52:12,121 INFO L109 eAbstractionObserver]: Analyzing ICFG afterrec-2.c [2019-09-10 02:52:12,130 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:52:12,136 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:52:12,151 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:52:12,177 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:52:12,177 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:52:12,177 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:52:12,177 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:52:12,177 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:52:12,178 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:52:12,178 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:52:12,178 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:52:12,195 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-09-10 02:52:12,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-10 02:52:12,213 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:52:12,213 INFO L399 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:52:12,215 INFO L418 AbstractCegarLoop]: === Iteration 1 === [fErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:52:12,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:52:12,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1715138264, now seen corresponding path program 1 times [2019-09-10 02:52:12,222 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:52:12,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:52:12,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:52:12,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:52:12,262 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:52:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:52:12,369 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-10 02:52:12,372 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:52:12,372 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:52:12,373 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2019-09-10 02:52:12,375 INFO L207 CegarAbsIntRunner]: [0], [1], [4], [5], [8], [10], [16], [17], [18], [19], [20], [22] [2019-09-10 02:52:12,459 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:52:12,462 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:52:12,618 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:52:12,621 INFO L272 AbstractInterpreter]: Visited 9 different actions 9 times. Never merged. Never widened. Performed 4 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 3 variables. [2019-09-10 02:52:12,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:52:12,626 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:52:12,678 INFO L227 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2019-09-10 02:52:12,679 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:52:12,706 INFO L420 sIntCurrentIteration]: We unified 15 AI predicates to 15 [2019-09-10 02:52:12,707 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:52:12,710 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:52:12,710 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2019-09-10 02:52:12,711 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:52:12,716 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:52:12,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:52:12,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:52:12,724 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2019-09-10 02:52:12,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:52:12,805 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-09-10 02:52:12,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:52:12,808 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2019-09-10 02:52:12,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:52:12,816 INFO L225 Difference]: With dead ends: 13 [2019-09-10 02:52:12,817 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:52:12,819 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:52:12,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:52:12,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:52:12,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:52:12,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:52:12,853 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-09-10 02:52:12,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:52:12,853 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:52:12,853 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:52:12,854 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:52:12,854 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:52:12,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:52:12 BoogieIcfgContainer [2019-09-10 02:52:12,860 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:52:12,863 INFO L168 Benchmark]: Toolchain (without parser) took 1270.15 ms. Allocated memory was 135.8 MB in the beginning and 201.9 MB in the end (delta: 66.1 MB). Free memory was 90.2 MB in the beginning and 138.8 MB in the end (delta: -48.6 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:52:12,864 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 135.8 MB. Free memory was 109.0 MB in the beginning and 108.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:52:12,865 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.07 ms. Allocated memory is still 135.8 MB. Free memory was 90.0 MB in the beginning and 81.4 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:52:12,867 INFO L168 Benchmark]: Boogie Preprocessor took 116.74 ms. Allocated memory was 135.8 MB in the beginning and 201.9 MB in the end (delta: 66.1 MB). Free memory was 81.4 MB in the beginning and 179.0 MB in the end (delta: -97.6 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:52:12,868 INFO L168 Benchmark]: RCFGBuilder took 190.89 ms. Allocated memory is still 201.9 MB. Free memory was 179.0 MB in the beginning and 169.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:52:12,869 INFO L168 Benchmark]: TraceAbstraction took 747.71 ms. Allocated memory is still 201.9 MB. Free memory was 168.6 MB in the beginning and 138.8 MB in the end (delta: 29.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:52:12,873 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 135.8 MB. Free memory was 109.0 MB in the beginning and 108.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 211.07 ms. Allocated memory is still 135.8 MB. Free memory was 90.0 MB in the beginning and 81.4 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.74 ms. Allocated memory was 135.8 MB in the beginning and 201.9 MB in the end (delta: 66.1 MB). Free memory was 81.4 MB in the beginning and 179.0 MB in the end (delta: -97.6 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 190.89 ms. Allocated memory is still 201.9 MB. Free memory was 179.0 MB in the beginning and 169.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 747.71 ms. Allocated memory is still 201.9 MB. Free memory was 168.6 MB in the beginning and 138.8 MB in the end (delta: 29.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 16 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 1 OverallIterations, 3 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 5 SDslu, 15 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9 AbsIntWeakeningRatio, 0.5333333333333333 AbsIntAvgWeakeningVarsNumRemoved, 0.06666666666666667 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, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 285 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 0 PerfectInterpolantSequences, 3/7 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...