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_label01.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 17:15:01,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 17:15:01,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 17:15:01,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-02 17:15:01,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 17:15:01,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 17:15:01,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 17:15:01,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 17:15:01,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 17:15:01,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 17:15:01,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 17:15:01,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 17:15:01,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 17:15:01,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 17:15:01,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 17:15:01,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 17:15:01,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-02 17:15:01,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 17:15:01,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 17:15:01,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 17:15:01,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 17:15:01,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 17:15:01,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 17:15:01,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 17:15:01,445 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 17:15:01,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 17:15:01,446 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 17:15:01,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 17:15:01,447 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 [2019-10-02 17:15:01,462 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 17:15:01,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 17:15:01,463 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-02 17:15:01,463 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-02 17:15:01,464 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-02 17:15:01,464 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-02 17:15:01,464 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-02 17:15:01,464 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-02 17:15:01,465 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-02 17:15:01,465 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-02 17:15:01,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 17:15:01,466 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 17:15:01,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 17:15:01,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 17:15:01,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 17:15:01,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 17:15:01,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 17:15:01,467 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 17:15:01,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 17:15:01,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 17:15:01,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 17:15:01,468 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-02 17:15:01,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 17:15:01,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 17:15:01,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 17:15:01,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 17:15:01,469 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-02 17:15:01,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 17:15:01,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 17:15:01,469 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-02 17:15:01,497 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 17:15:01,509 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 17:15:01,512 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 17:15:01,514 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 17:15:01,514 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 17:15:01,515 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label01.c [2019-10-02 17:15:01,594 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee6f7d7e6/3aa8917609964c2993a4e1df2b05261e/FLAG7b18faa04 [2019-10-02 17:15:02,145 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 17:15:02,146 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label01.c [2019-10-02 17:15:02,167 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee6f7d7e6/3aa8917609964c2993a4e1df2b05261e/FLAG7b18faa04 [2019-10-02 17:15:02,422 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee6f7d7e6/3aa8917609964c2993a4e1df2b05261e [2019-10-02 17:15:02,430 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 17:15:02,432 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 17:15:02,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 17:15:02,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 17:15:02,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 17:15:02,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 05:15:02" (1/1) ... [2019-10-02 17:15:02,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39389e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:15:02, skipping insertion in model container [2019-10-02 17:15:02,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 05:15:02" (1/1) ... [2019-10-02 17:15:02,452 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 17:15:02,509 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 17:15:03,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 17:15:03,161 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 17:15:03,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 17:15:03,304 INFO L192 MainTranslator]: Completed translation [2019-10-02 17:15:03,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:15:03 WrapperNode [2019-10-02 17:15:03,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 17:15:03,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 17:15:03,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 17:15:03,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 17:15:03,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:15:03" (1/1) ... [2019-10-02 17:15:03,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:15:03" (1/1) ... [2019-10-02 17:15:03,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:15:03" (1/1) ... [2019-10-02 17:15:03,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:15:03" (1/1) ... [2019-10-02 17:15:03,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:15:03" (1/1) ... [2019-10-02 17:15:03,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:15:03" (1/1) ... [2019-10-02 17:15:03,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:15:03" (1/1) ... [2019-10-02 17:15:03,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 17:15:03,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 17:15:03,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 17:15:03,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 17:15:03,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:15:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 17:15:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 17:15:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 17:15:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-02 17:15:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 17:15:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-02 17:15:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 17:15:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 17:15:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-02 17:15:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 17:15:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 17:15:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 17:15:04,693 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 17:15:04,693 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-02 17:15:04,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 05:15:04 BoogieIcfgContainer [2019-10-02 17:15:04,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 17:15:04,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 17:15:04,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 17:15:04,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 17:15:04,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 05:15:02" (1/3) ... [2019-10-02 17:15:04,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b226aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 05:15:04, skipping insertion in model container [2019-10-02 17:15:04,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:15:03" (2/3) ... [2019-10-02 17:15:04,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b226aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 05:15:04, skipping insertion in model container [2019-10-02 17:15:04,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 05:15:04" (3/3) ... [2019-10-02 17:15:04,702 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label01.c [2019-10-02 17:15:04,712 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 17:15:04,719 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 17:15:04,736 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 17:15:04,762 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 17:15:04,763 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-02 17:15:04,763 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 17:15:04,763 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 17:15:04,763 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 17:15:04,763 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 17:15:04,764 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 17:15:04,764 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 17:15:04,785 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2019-10-02 17:15:04,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-02 17:15:04,802 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 17:15:04,803 INFO L411 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] [2019-10-02 17:15:04,805 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 17:15:04,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 17:15:04,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1511676745, now seen corresponding path program 1 times [2019-10-02 17:15:04,813 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 17:15:04,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:15:04,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 17:15:04,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:15:04,862 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 17:15:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 17:15:05,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 17:15:05,269 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 17:15:05,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 17:15:05,270 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 17:15:05,276 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 17:15:05,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 17:15:05,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 17:15:05,295 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2019-10-02 17:15:06,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 17:15:06,350 INFO L93 Difference]: Finished difference Result 393 states and 598 transitions. [2019-10-02 17:15:06,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 17:15:06,353 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2019-10-02 17:15:06,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 17:15:06,369 INFO L225 Difference]: With dead ends: 393 [2019-10-02 17:15:06,370 INFO L226 Difference]: Without dead ends: 325 [2019-10-02 17:15:06,371 INFO L640 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 [2019-10-02 17:15:06,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2019-10-02 17:15:06,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 321. [2019-10-02 17:15:06,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2019-10-02 17:15:06,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 473 transitions. [2019-10-02 17:15:06,463 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 473 transitions. Word has length 119 [2019-10-02 17:15:06,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 17:15:06,464 INFO L475 AbstractCegarLoop]: Abstraction has 321 states and 473 transitions. [2019-10-02 17:15:06,464 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 17:15:06,465 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 473 transitions. [2019-10-02 17:15:06,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-10-02 17:15:06,470 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 17:15:06,470 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 17:15:06,470 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 17:15:06,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 17:15:06,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1590718300, now seen corresponding path program 1 times [2019-10-02 17:15:06,471 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 17:15:06,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:15:06,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 17:15:06,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:15:06,473 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 17:15:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 17:15:06,619 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 17:15:06,619 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 17:15:06,619 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-02 17:15:06,619 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 17:15:06,621 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 17:15:06,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 17:15:06,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-02 17:15:06,622 INFO L87 Difference]: Start difference. First operand 321 states and 473 transitions. Second operand 6 states. [2019-10-02 17:15:07,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 17:15:07,472 INFO L93 Difference]: Finished difference Result 640 states and 942 transitions. [2019-10-02 17:15:07,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 17:15:07,473 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 139 [2019-10-02 17:15:07,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 17:15:07,480 INFO L225 Difference]: With dead ends: 640 [2019-10-02 17:15:07,480 INFO L226 Difference]: Without dead ends: 640 [2019-10-02 17:15:07,481 INFO L640 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 [2019-10-02 17:15:07,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2019-10-02 17:15:07,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 623. [2019-10-02 17:15:07,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623 states. [2019-10-02 17:15:07,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 902 transitions. [2019-10-02 17:15:07,534 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 902 transitions. Word has length 139 [2019-10-02 17:15:07,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 17:15:07,535 INFO L475 AbstractCegarLoop]: Abstraction has 623 states and 902 transitions. [2019-10-02 17:15:07,535 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 17:15:07,535 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 902 transitions. [2019-10-02 17:15:07,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-02 17:15:07,542 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 17:15:07,542 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-02 17:15:07,543 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 17:15:07,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 17:15:07,543 INFO L82 PathProgramCache]: Analyzing trace with hash 255104169, now seen corresponding path program 1 times [2019-10-02 17:15:07,543 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 17:15:07,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:15:07,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 17:15:07,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:15:07,546 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 17:15:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 17:15:07,672 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 17:15:07,672 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 17:15:07,673 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-02 17:15:07,674 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2019-10-02 17:15:07,676 INFO L207 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [45], [50], [52], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [631], [633], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2019-10-02 17:15:07,728 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-02 17:15:07,729 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-02 17:17:07,081 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-02 17:17:07,083 INFO L272 AbstractInterpreter]: Visited 120 different actions 120 times. Never merged. Never widened. Performed 185 root evaluator evaluations with a maximum evaluation depth of 18. Performed 185 inverse root evaluator evaluations with a maximum inverse evaluation depth of 18. Never found a fixpoint. Largest state had 38 variables. [2019-10-02 17:17:07,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 17:17:07,087 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-02 17:18:53,398 INFO L227 lantSequenceWeakener]: Weakened 136 states. On average, predicates are now at 80.93% of their original sizes. [2019-10-02 17:18:53,398 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-02 17:18:53,476 INFO L420 sIntCurrentIteration]: We unified 146 AI predicates to 146 [2019-10-02 17:18:53,476 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-02 17:18:53,478 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 17:18:53,478 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2019-10-02 17:18:53,478 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 17:18:53,479 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-02 17:18:53,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-02 17:18:53,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-10-02 17:18:53,480 INFO L87 Difference]: Start difference. First operand 623 states and 902 transitions. Second operand 10 states. [2019-10-02 17:19:03,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 17:19:03,684 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: There is no value of variable ~a25~0. at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalState.getValue(NonrelationalState.java:147) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.lambda$0(SingletonVariableExpressionEvaluator.java:83) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.util.typeutils.TypeUtils.applyVariableFunctionPerType(TypeUtils.java:114) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.util.typeutils.TypeUtils.applyVariableFunction(TypeUtils.java:103) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.evaluate(SingletonVariableExpressionEvaluator.java:89) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.evaluate(SingletonVariableExpressionEvaluator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:90) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:90) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalEvaluator.evaluate(NonrelationalEvaluator.java:81) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleAssumeStatement(NonrelationalStatementProcessor.java:297) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:156) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalTransitionWithValidState(AbsIntHoareTripleChecker.java:353) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalAbsInt(AbsIntHoareTripleChecker.java:250) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternal(AbsIntHoareTripleChecker.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:359) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:72) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:708) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:637) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:467) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:371) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-02 17:19:03,692 INFO L168 Benchmark]: Toolchain (without parser) took 241259.03 ms. Allocated memory was 132.6 MB in the beginning and 441.5 MB in the end (delta: 308.8 MB). Free memory was 86.4 MB in the beginning and 247.8 MB in the end (delta: -161.4 MB). Peak memory consumption was 147.4 MB. Max. memory is 7.1 GB. [2019-10-02 17:19:03,692 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 132.6 MB. Free memory is still 106.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-02 17:19:03,694 INFO L168 Benchmark]: CACSL2BoogieTranslator took 872.35 ms. Allocated memory was 132.6 MB in the beginning and 204.5 MB in the end (delta: 71.8 MB). Free memory was 86.0 MB in the beginning and 169.4 MB in the end (delta: -83.4 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. [2019-10-02 17:19:03,694 INFO L168 Benchmark]: Boogie Preprocessor took 105.95 ms. Allocated memory is still 204.5 MB. Free memory was 169.4 MB in the beginning and 163.6 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. [2019-10-02 17:19:03,695 INFO L168 Benchmark]: RCFGBuilder took 1282.94 ms. Allocated memory was 204.5 MB in the beginning and 228.1 MB in the end (delta: 23.6 MB). Free memory was 163.6 MB in the beginning and 178.9 MB in the end (delta: -15.4 MB). Peak memory consumption was 90.5 MB. Max. memory is 7.1 GB. [2019-10-02 17:19:03,697 INFO L168 Benchmark]: TraceAbstraction took 238993.35 ms. Allocated memory was 228.1 MB in the beginning and 441.5 MB in the end (delta: 213.4 MB). Free memory was 178.9 MB in the beginning and 247.8 MB in the end (delta: -68.9 MB). Peak memory consumption was 144.5 MB. Max. memory is 7.1 GB. [2019-10-02 17:19:03,701 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 132.6 MB. Free memory is still 106.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 872.35 ms. Allocated memory was 132.6 MB in the beginning and 204.5 MB in the end (delta: 71.8 MB). Free memory was 86.0 MB in the beginning and 169.4 MB in the end (delta: -83.4 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.95 ms. Allocated memory is still 204.5 MB. Free memory was 169.4 MB in the beginning and 163.6 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1282.94 ms. Allocated memory was 204.5 MB in the beginning and 228.1 MB in the end (delta: 23.6 MB). Free memory was 163.6 MB in the beginning and 178.9 MB in the end (delta: -15.4 MB). Peak memory consumption was 90.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 238993.35 ms. Allocated memory was 228.1 MB in the beginning and 441.5 MB in the end (delta: 213.4 MB). Free memory was 178.9 MB in the beginning and 247.8 MB in the end (delta: -68.9 MB). Peak memory consumption was 144.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: There is no value of variable ~a25~0. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: There is no value of variable ~a25~0.: de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalState.getValue(NonrelationalState.java:147) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...