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/eca-rers2012/Problem02_label15.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-09 06:48:14,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-09 06:48:14,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-09 06:48:14,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-09 06:48:14,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-09 06:48:14,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-09 06:48:14,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-09 06:48:14,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-09 06:48:14,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-09 06:48:14,504 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-09 06:48:14,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-09 06:48:14,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-09 06:48:14,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-09 06:48:14,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-09 06:48:14,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-09 06:48:14,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-09 06:48:14,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-09 06:48:14,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-09 06:48:14,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-09 06:48:14,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-09 06:48:14,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-09 06:48:14,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-09 06:48:14,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-09 06:48:14,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-09 06:48:14,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-09 06:48:14,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-09 06:48:14,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-09 06:48:14,536 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-09 06:48:14,537 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 [2019-09-09 06:48:14,554 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-09 06:48:14,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-09 06:48:14,554 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-09 06:48:14,554 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-09 06:48:14,555 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-09 06:48:14,555 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-09 06:48:14,556 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-09 06:48:14,556 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-09 06:48:14,556 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-09 06:48:14,556 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-09 06:48:14,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-09 06:48:14,557 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-09 06:48:14,557 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-09 06:48:14,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-09 06:48:14,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-09 06:48:14,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-09 06:48:14,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-09 06:48:14,558 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-09 06:48:14,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-09 06:48:14,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-09 06:48:14,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-09 06:48:14,559 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-09 06:48:14,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-09 06:48:14,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-09 06:48:14,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-09 06:48:14,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-09 06:48:14,560 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-09 06:48:14,560 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-09 06:48:14,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-09 06:48:14,560 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-09 06:48:14,595 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-09 06:48:14,613 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-09 06:48:14,616 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-09 06:48:14,618 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-09 06:48:14,618 INFO L275 PluginConnector]: CDTParser initialized [2019-09-09 06:48:14,619 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label15.c [2019-09-09 06:48:14,693 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bcc77600/371950bb3fe249058a2ca761ce3c93d7/FLAG0a99d5c10 [2019-09-09 06:48:15,279 INFO L306 CDTParser]: Found 1 translation units. [2019-09-09 06:48:15,283 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label15.c [2019-09-09 06:48:15,305 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bcc77600/371950bb3fe249058a2ca761ce3c93d7/FLAG0a99d5c10 [2019-09-09 06:48:15,549 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bcc77600/371950bb3fe249058a2ca761ce3c93d7 [2019-09-09 06:48:15,561 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-09 06:48:15,563 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-09 06:48:15,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-09 06:48:15,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-09 06:48:15,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-09 06:48:15,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 06:48:15" (1/1) ... [2019-09-09 06:48:15,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a2cc761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 06:48:15, skipping insertion in model container [2019-09-09 06:48:15,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 06:48:15" (1/1) ... [2019-09-09 06:48:15,582 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-09 06:48:15,644 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-09 06:48:16,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 06:48:16,176 INFO L188 MainTranslator]: Completed pre-run [2019-09-09 06:48:16,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 06:48:16,300 INFO L192 MainTranslator]: Completed translation [2019-09-09 06:48:16,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 06:48:16 WrapperNode [2019-09-09 06:48:16,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-09 06:48:16,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-09 06:48:16,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-09 06:48:16,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-09 06:48:16,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 06:48:16" (1/1) ... [2019-09-09 06:48:16,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 06:48:16" (1/1) ... [2019-09-09 06:48:16,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 06:48:16" (1/1) ... [2019-09-09 06:48:16,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 06:48:16" (1/1) ... [2019-09-09 06:48:16,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 06:48:16" (1/1) ... [2019-09-09 06:48:16,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 06:48:16" (1/1) ... [2019-09-09 06:48:16,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 06:48:16" (1/1) ... [2019-09-09 06:48:16,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-09 06:48:16,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-09 06:48:16,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-09 06:48:16,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-09 06:48:16,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 06:48:16" (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 [2019-09-09 06:48:16,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-09 06:48:16,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-09 06:48:16,544 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-09-09 06:48:16,544 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-09 06:48:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-09-09 06:48:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-09 06:48:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-09 06:48:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-09 06:48:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-09 06:48:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-09 06:48:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-09 06:48:17,644 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-09 06:48:17,645 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-09 06:48:17,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 06:48:17 BoogieIcfgContainer [2019-09-09 06:48:17,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-09 06:48:17,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-09 06:48:17,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-09 06:48:17,651 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-09 06:48:17,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.09 06:48:15" (1/3) ... [2019-09-09 06:48:17,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f277c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 06:48:17, skipping insertion in model container [2019-09-09 06:48:17,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 06:48:16" (2/3) ... [2019-09-09 06:48:17,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f277c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 06:48:17, skipping insertion in model container [2019-09-09 06:48:17,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 06:48:17" (3/3) ... [2019-09-09 06:48:17,655 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label15.c [2019-09-09 06:48:17,666 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-09 06:48:17,677 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-09 06:48:17,695 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-09 06:48:17,721 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-09 06:48:17,721 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-09 06:48:17,721 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-09 06:48:17,722 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-09 06:48:17,722 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-09 06:48:17,722 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-09 06:48:17,722 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-09 06:48:17,722 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-09 06:48:17,749 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2019-09-09 06:48:17,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-09-09 06:48:17,767 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 06:48:17,768 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 06:48:17,770 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 06:48:17,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 06:48:17,775 INFO L82 PathProgramCache]: Analyzing trace with hash 265542486, now seen corresponding path program 1 times [2019-09-09 06:48:17,777 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 06:48:17,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:48:17,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 06:48:17,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:48:17,823 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 06:48:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 06:48:18,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 06:48:18,313 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 06:48:18,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-09 06:48:18,313 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 06:48:18,320 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-09 06:48:18,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-09 06:48:18,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 06:48:18,338 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2019-09-09 06:48:19,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 06:48:19,274 INFO L93 Difference]: Finished difference Result 390 states and 592 transitions. [2019-09-09 06:48:19,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-09 06:48:19,276 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2019-09-09 06:48:19,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 06:48:19,293 INFO L225 Difference]: With dead ends: 390 [2019-09-09 06:48:19,293 INFO L226 Difference]: Without dead ends: 322 [2019-09-09 06:48:19,295 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 06:48:19,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2019-09-09 06:48:19,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 320. [2019-09-09 06:48:19,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2019-09-09 06:48:19,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 471 transitions. [2019-09-09 06:48:19,367 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 471 transitions. Word has length 136 [2019-09-09 06:48:19,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 06:48:19,368 INFO L475 AbstractCegarLoop]: Abstraction has 320 states and 471 transitions. [2019-09-09 06:48:19,368 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-09 06:48:19,369 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 471 transitions. [2019-09-09 06:48:19,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-09-09 06:48:19,374 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 06:48:19,374 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 06:48:19,375 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 06:48:19,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 06:48:19,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1544099655, now seen corresponding path program 1 times [2019-09-09 06:48:19,376 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 06:48:19,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:48:19,377 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 06:48:19,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:48:19,377 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 06:48:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 06:48:19,530 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 06:48:19,530 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 06:48:19,530 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-09 06:48:19,531 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 06:48:19,533 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-09 06:48:19,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-09 06:48:19,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 06:48:19,535 INFO L87 Difference]: Start difference. First operand 320 states and 471 transitions. Second operand 3 states. [2019-09-09 06:48:20,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 06:48:20,117 INFO L93 Difference]: Finished difference Result 611 states and 880 transitions. [2019-09-09 06:48:20,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-09 06:48:20,118 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2019-09-09 06:48:20,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 06:48:20,124 INFO L225 Difference]: With dead ends: 611 [2019-09-09 06:48:20,125 INFO L226 Difference]: Without dead ends: 611 [2019-09-09 06:48:20,126 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 06:48:20,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2019-09-09 06:48:20,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 611. [2019-09-09 06:48:20,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2019-09-09 06:48:20,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 880 transitions. [2019-09-09 06:48:20,165 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 880 transitions. Word has length 145 [2019-09-09 06:48:20,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 06:48:20,166 INFO L475 AbstractCegarLoop]: Abstraction has 611 states and 880 transitions. [2019-09-09 06:48:20,166 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-09 06:48:20,166 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 880 transitions. [2019-09-09 06:48:20,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-09-09 06:48:20,170 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 06:48:20,171 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 06:48:20,171 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 06:48:20,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 06:48:20,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1094995566, now seen corresponding path program 1 times [2019-09-09 06:48:20,172 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 06:48:20,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:48:20,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 06:48:20,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:48:20,173 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 06:48:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 06:48:20,277 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 06:48:20,278 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 06:48:20,278 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-09 06:48:20,278 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 06:48:20,279 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-09 06:48:20,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-09 06:48:20,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-09 06:48:20,280 INFO L87 Difference]: Start difference. First operand 611 states and 880 transitions. Second operand 6 states. [2019-09-09 06:48:21,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 06:48:21,154 INFO L93 Difference]: Finished difference Result 1233 states and 1817 transitions. [2019-09-09 06:48:21,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-09 06:48:21,155 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2019-09-09 06:48:21,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 06:48:21,164 INFO L225 Difference]: With dead ends: 1233 [2019-09-09 06:48:21,165 INFO L226 Difference]: Without dead ends: 1233 [2019-09-09 06:48:21,165 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-09-09 06:48:21,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1233 states. [2019-09-09 06:48:21,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1233 to 1210. [2019-09-09 06:48:21,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1210 states. [2019-09-09 06:48:21,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1738 transitions. [2019-09-09 06:48:21,230 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1738 transitions. Word has length 158 [2019-09-09 06:48:21,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 06:48:21,230 INFO L475 AbstractCegarLoop]: Abstraction has 1210 states and 1738 transitions. [2019-09-09 06:48:21,230 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-09 06:48:21,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1738 transitions. [2019-09-09 06:48:21,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-09-09 06:48:21,237 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 06:48:21,237 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 06:48:21,237 INFO L418 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 06:48:21,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 06:48:21,238 INFO L82 PathProgramCache]: Analyzing trace with hash -2097786966, now seen corresponding path program 1 times [2019-09-09 06:48:21,238 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 06:48:21,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:48:21,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 06:48:21,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:48:21,240 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 06:48:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 06:48:21,504 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 06:48:21,504 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 06:48:21,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-09 06:48:21,505 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 06:48:21,506 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-09 06:48:21,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-09 06:48:21,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-09 06:48:21,507 INFO L87 Difference]: Start difference. First operand 1210 states and 1738 transitions. Second operand 5 states. [2019-09-09 06:48:22,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 06:48:22,169 INFO L93 Difference]: Finished difference Result 1146 states and 1584 transitions. [2019-09-09 06:48:22,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-09 06:48:22,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2019-09-09 06:48:22,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 06:48:22,170 INFO L225 Difference]: With dead ends: 1146 [2019-09-09 06:48:22,170 INFO L226 Difference]: Without dead ends: 0 [2019-09-09 06:48:22,171 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-09 06:48:22,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-09 06:48:22,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-09 06:48:22,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-09 06:48:22,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-09 06:48:22,172 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 160 [2019-09-09 06:48:22,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 06:48:22,172 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-09 06:48:22,172 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-09 06:48:22,172 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-09 06:48:22,172 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-09 06:48:22,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.09 06:48:22 BoogieIcfgContainer [2019-09-09 06:48:22,178 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-09 06:48:22,181 INFO L168 Benchmark]: Toolchain (without parser) took 6616.72 ms. Allocated memory was 134.2 MB in the beginning and 323.0 MB in the end (delta: 188.7 MB). Free memory was 88.4 MB in the beginning and 195.1 MB in the end (delta: -106.7 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. [2019-09-09 06:48:22,182 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 134.2 MB. Free memory was 108.6 MB in the beginning and 108.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-09 06:48:22,183 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.20 ms. Allocated memory was 134.2 MB in the beginning and 203.9 MB in the end (delta: 69.7 MB). Free memory was 88.2 MB in the beginning and 168.6 MB in the end (delta: -80.5 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. [2019-09-09 06:48:22,184 INFO L168 Benchmark]: Boogie Preprocessor took 168.33 ms. Allocated memory is still 203.9 MB. Free memory was 168.6 MB in the beginning and 164.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-09-09 06:48:22,184 INFO L168 Benchmark]: RCFGBuilder took 1175.06 ms. Allocated memory was 203.9 MB in the beginning and 230.7 MB in the end (delta: 26.7 MB). Free memory was 164.1 MB in the beginning and 181.8 MB in the end (delta: -17.7 MB). Peak memory consumption was 88.3 MB. Max. memory is 7.1 GB. [2019-09-09 06:48:22,186 INFO L168 Benchmark]: TraceAbstraction took 4530.50 ms. Allocated memory was 230.7 MB in the beginning and 323.0 MB in the end (delta: 92.3 MB). Free memory was 181.8 MB in the beginning and 195.1 MB in the end (delta: -13.3 MB). Peak memory consumption was 79.0 MB. Max. memory is 7.1 GB. [2019-09-09 06:48:22,189 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 134.2 MB. Free memory was 108.6 MB in the beginning and 108.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 738.20 ms. Allocated memory was 134.2 MB in the beginning and 203.9 MB in the end (delta: 69.7 MB). Free memory was 88.2 MB in the beginning and 168.6 MB in the end (delta: -80.5 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 168.33 ms. Allocated memory is still 203.9 MB. Free memory was 168.6 MB in the beginning and 164.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1175.06 ms. Allocated memory was 203.9 MB in the beginning and 230.7 MB in the end (delta: 26.7 MB). Free memory was 164.1 MB in the beginning and 181.8 MB in the end (delta: -17.7 MB). Peak memory consumption was 88.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4530.50 ms. Allocated memory was 230.7 MB in the beginning and 323.0 MB in the end (delta: 92.3 MB). Free memory was 181.8 MB in the beginning and 195.1 MB in the end (delta: -13.3 MB). Peak memory consumption was 79.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 562]: 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, 236 locations, 1 error locations. SAFE Result, 4.4s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 3.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 255 SDtfs, 1030 SDslu, 160 SDs, 0 SdLazy, 1980 SolverSat, 420 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1210occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 25 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 599 NumberOfCodeBlocks, 599 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 595 ConstructedInterpolants, 0 QuantifiedInterpolants, 463307 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 46/46 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...