/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:53:20,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:53:20,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:53:20,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-06 22:53:20,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:53:20,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:53:20,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:53:20,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:53:20,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:53:20,108 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:53:20,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:53:20,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:53:20,113 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:53:20,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:53:20,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:53:20,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:53:20,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-06 22:53:20,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:53:20,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:53:20,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:53:20,127 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 22:53:20,150 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:53:20,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:53:20,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:53:20,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:53:20,151 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:53:20,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:53:20,152 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:53:20,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:53:20,152 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:53:20,152 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:53:20,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:53:20,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:53:20,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:53:20,153 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:53:20,153 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:53:20,154 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:53:20,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:53:20,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:53:20,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:53:20,154 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:53:20,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:53:20,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:53:20,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:53:20,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:53:20,155 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:53:20,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:53:20,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:53:20,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:53:20,156 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-06 22:53:20,451 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:53:20,470 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:53:20,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:53:20,476 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:53:20,476 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:53:20,477 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label54.c [2019-11-06 22:53:20,552 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d40dd9486/b94a14161dea493ba001179c7ca04c9b/FLAG522cdacb1 [2019-11-06 22:53:21,194 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:53:21,195 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label54.c [2019-11-06 22:53:21,214 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d40dd9486/b94a14161dea493ba001179c7ca04c9b/FLAG522cdacb1 [2019-11-06 22:53:21,368 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d40dd9486/b94a14161dea493ba001179c7ca04c9b [2019-11-06 22:53:21,377 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:53:21,378 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:53:21,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:53:21,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:53:21,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:53:21,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:53:21" (1/1) ... [2019-11-06 22:53:21,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46e5946d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:21, skipping insertion in model container [2019-11-06 22:53:21,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:53:21" (1/1) ... [2019-11-06 22:53:21,396 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:53:21,481 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:53:22,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:53:22,524 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:53:22,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:53:22,857 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:53:22,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:22 WrapperNode [2019-11-06 22:53:22,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:53:22,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:53:22,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:53:22,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:53:22,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:22" (1/1) ... [2019-11-06 22:53:22,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:22" (1/1) ... [2019-11-06 22:53:22,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:22" (1/1) ... [2019-11-06 22:53:22,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:22" (1/1) ... [2019-11-06 22:53:23,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:22" (1/1) ... [2019-11-06 22:53:23,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:22" (1/1) ... [2019-11-06 22:53:23,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:22" (1/1) ... [2019-11-06 22:53:23,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:53:23,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:53:23,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:53:23,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:53:23,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:22" (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 [2019-11-06 22:53:23,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:53:23,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:53:23,160 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-06 22:53:23,160 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-11-06 22:53:23,160 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:53:23,161 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-06 22:53:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-11-06 22:53:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:53:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:53:23,163 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-06 22:53:23,163 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:53:23,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:53:23,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:53:27,055 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:53:27,055 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-06 22:53:27,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:53:27 BoogieIcfgContainer [2019-11-06 22:53:27,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:53:27,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:53:27,058 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:53:27,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:53:27,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:53:21" (1/3) ... [2019-11-06 22:53:27,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc61d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:53:27, skipping insertion in model container [2019-11-06 22:53:27,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:22" (2/3) ... [2019-11-06 22:53:27,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc61d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:53:27, skipping insertion in model container [2019-11-06 22:53:27,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:53:27" (3/3) ... [2019-11-06 22:53:27,065 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem15_label54.c [2019-11-06 22:53:27,075 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:53:27,083 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:53:27,093 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:53:27,122 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:53:27,122 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:53:27,122 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:53:27,122 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:53:27,123 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:53:27,123 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:53:27,123 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:53:27,123 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:53:27,152 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states. [2019-11-06 22:53:27,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-06 22:53:27,161 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:53:27,162 INFO L410 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] [2019-11-06 22:53:27,164 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:53:27,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:53:27,168 INFO L82 PathProgramCache]: Analyzing trace with hash 54256576, now seen corresponding path program 1 times [2019-11-06 22:53:27,175 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:53:27,175 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799605052] [2019-11-06 22:53:27,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:53:27,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:53:27,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:53:27,487 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799605052] [2019-11-06 22:53:27,488 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:53:27,488 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:53:27,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028355064] [2019-11-06 22:53:27,495 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:53:27,497 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:53:27,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:53:27,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:53:27,514 INFO L87 Difference]: Start difference. First operand 437 states. Second operand 3 states. [2019-11-06 22:53:30,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:53:30,669 INFO L93 Difference]: Finished difference Result 1189 states and 2144 transitions. [2019-11-06 22:53:30,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:53:30,671 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2019-11-06 22:53:30,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:53:30,692 INFO L225 Difference]: With dead ends: 1189 [2019-11-06 22:53:30,692 INFO L226 Difference]: Without dead ends: 690 [2019-11-06 22:53:30,708 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:53:30,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2019-11-06 22:53:30,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 690. [2019-11-06 22:53:30,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 690 states. [2019-11-06 22:53:30,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1151 transitions. [2019-11-06 22:53:30,817 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1151 transitions. Word has length 46 [2019-11-06 22:53:30,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:53:30,819 INFO L462 AbstractCegarLoop]: Abstraction has 690 states and 1151 transitions. [2019-11-06 22:53:30,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:53:30,820 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1151 transitions. [2019-11-06 22:53:30,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-11-06 22:53:30,829 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:53:30,829 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-06 22:53:30,832 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:53:30,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:53:30,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1294252235, now seen corresponding path program 1 times [2019-11-06 22:53:30,832 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:53:30,833 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969910148] [2019-11-06 22:53:30,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:53:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:53:31,135 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:53:31,136 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969910148] [2019-11-06 22:53:31,136 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:53:31,137 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 22:53:31,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354572187] [2019-11-06 22:53:31,139 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 22:53:31,140 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:53:31,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 22:53:31,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-06 22:53:31,141 INFO L87 Difference]: Start difference. First operand 690 states and 1151 transitions. Second operand 5 states. [2019-11-06 22:53:38,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:53:38,472 INFO L93 Difference]: Finished difference Result 3246 states and 5572 transitions. [2019-11-06 22:53:38,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-06 22:53:38,473 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2019-11-06 22:53:38,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:53:38,486 INFO L225 Difference]: With dead ends: 3246 [2019-11-06 22:53:38,486 INFO L226 Difference]: Without dead ends: 2562 [2019-11-06 22:53:38,490 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-06 22:53:38,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2562 states. [2019-11-06 22:53:38,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562 to 2562. [2019-11-06 22:53:38,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2562 states. [2019-11-06 22:53:38,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2562 states to 2562 states and 3980 transitions. [2019-11-06 22:53:38,602 INFO L78 Accepts]: Start accepts. Automaton has 2562 states and 3980 transitions. Word has length 126 [2019-11-06 22:53:38,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:53:38,606 INFO L462 AbstractCegarLoop]: Abstraction has 2562 states and 3980 transitions. [2019-11-06 22:53:38,606 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 22:53:38,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2562 states and 3980 transitions. [2019-11-06 22:53:38,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-11-06 22:53:38,618 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:53:38,618 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-06 22:53:38,619 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:53:38,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:53:38,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1175711612, now seen corresponding path program 1 times [2019-11-06 22:53:38,619 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:53:38,619 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719639917] [2019-11-06 22:53:38,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:53:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:53:38,903 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:53:38,904 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719639917] [2019-11-06 22:53:38,904 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:53:38,904 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 22:53:38,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796961628] [2019-11-06 22:53:38,906 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 22:53:38,907 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:53:38,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 22:53:38,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-06 22:53:38,907 INFO L87 Difference]: Start difference. First operand 2562 states and 3980 transitions. Second operand 6 states. [2019-11-06 22:53:42,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:53:42,762 INFO L93 Difference]: Finished difference Result 5805 states and 9226 transitions. [2019-11-06 22:53:42,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-06 22:53:42,767 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2019-11-06 22:53:42,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:53:42,793 INFO L225 Difference]: With dead ends: 5805 [2019-11-06 22:53:42,793 INFO L226 Difference]: Without dead ends: 3249 [2019-11-06 22:53:42,801 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:53:42,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3249 states. [2019-11-06 22:53:42,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3249 to 2620. [2019-11-06 22:53:42,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2620 states. [2019-11-06 22:53:42,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2620 states to 2620 states and 3834 transitions. [2019-11-06 22:53:42,920 INFO L78 Accepts]: Start accepts. Automaton has 2620 states and 3834 transitions. Word has length 145 [2019-11-06 22:53:42,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:53:42,922 INFO L462 AbstractCegarLoop]: Abstraction has 2620 states and 3834 transitions. [2019-11-06 22:53:42,922 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 22:53:42,922 INFO L276 IsEmpty]: Start isEmpty. Operand 2620 states and 3834 transitions. [2019-11-06 22:53:42,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2019-11-06 22:53:42,928 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:53:42,928 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-06 22:53:42,928 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:53:42,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:53:42,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1689745416, now seen corresponding path program 1 times [2019-11-06 22:53:42,929 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:53:42,929 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135325509] [2019-11-06 22:53:42,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:53:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:53:43,255 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 145 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:53:43,256 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135325509] [2019-11-06 22:53:43,256 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68818131] [2019-11-06 22:53:43,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:53:43,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:53:43,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-06 22:53:43,386 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:53:43,513 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 145 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:53:43,513 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:53:43,696 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 145 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:53:43,697 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [283415468] [2019-11-06 22:53:43,705 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 215 [2019-11-06 22:53:43,756 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-06 22:53:43,756 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-06 22:53:46,505 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-06 22:53:46,507 INFO L272 AbstractInterpreter]: Visited 102 different actions 102 times. Never merged. Never widened. Performed 243 root evaluator evaluations with a maximum evaluation depth of 13. Performed 243 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Never found a fixpoint. Largest state had 24 variables. [2019-11-06 22:53:46,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:53:46,512 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-06 22:53:48,429 INFO L227 lantSequenceWeakener]: Weakened 193 states. On average, predicates are now at 78.08% of their original sizes. [2019-11-06 22:53:48,430 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-06 22:53:48,524 INFO L553 sIntCurrentIteration]: We unified 213 AI predicates to 213 [2019-11-06 22:53:48,525 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-06 22:53:48,525 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-06 22:53:48,526 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [6, 5, 5] total 20 [2019-11-06 22:53:48,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232737151] [2019-11-06 22:53:48,527 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-06 22:53:48,528 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:53:48,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-06 22:53:48,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-11-06 22:53:48,529 INFO L87 Difference]: Start difference. First operand 2620 states and 3834 transitions. Second operand 11 states. [2019-11-06 22:53:48,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:53:48,731 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:53:48,732 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: at least one of both input predicates is unknown: 16841#true or 18560#(and (= ~inputF~0 6) (= ~inputA~0 1) (= ~inputC~0 3) (= (+ ~a0~0 44) 0) (= |old(~inputA~0)| 1) (= |old(~a2~0)| 1) (= (+ main_~output~0 1) 0) (= ~inputD~0 4) (<= main_~input~0 2147483647) (= (+ |old(~a0~0)| 44) 0) (<= 0 (+ main_~input~0 2147483648)) (= |old(~inputE~0)| 5) (= ~a2~0 1) (= |old(~inputB~0)| 2) (= |old(~inputF~0)| 6) (= (+ ~a4~0 89) 0) (= |old(~inputC~0)| 3) (= ~inputB~0 2) (= (+ |old(~a29~0)| 127) 0) (= ~inputE~0 5) (= |old(~inputD~0)| 4) (= (+ |old(~a4~0)| 89) 0) (= (+ ~a29~0 127) 0)) ([#1{~inputA~0 = [1;1]; old(~inputA~0) = [1;1]; ~inputB~0 = [2;2]; old(~inputB~0) = [2;2]; ~inputC~0 = [3;3]; old(~inputC~0) = [3;3]; ~inputF~0 = [6;6]; old(~inputF~0) = [6;6]; ~inputD~0 = [4;4]; old(~inputD~0) = [4;4]; main_~input~0 = [-2147483648;2147483647]; ~inputE~0 = [5;5]; old(~inputE~0) = [5;5]; ~a4~0 = [-89;-89]; old(~a4~0) = [-89;-89]; ~a2~0 = [1;1]; old(~a2~0) = [1;1]; ~a0~0 = [-44;-44]; old(~a0~0) = [-44;-44]; ~a29~0 = [-127;-127]; old(~a29~0) = [-127;-127]; main_~output~0 = [-1;-1]; }]) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$CoverageRelation.isCovered(PredicateUnifier.java:593) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.SdHoareTripleChecker$CheckHelper.check(SdHoareTripleChecker.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.SdHoareTripleChecker.checkCall(SdHoareTripleChecker.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.checkCall(EfficientHoareTripleChecker.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkCall(CachingHoareTripleChecker.java:125) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$CallSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:403) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.callSuccessors(AbstractInterpolantAutomaton.java:257) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.callSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.callSuccessors(TotalizeNwa.java:260) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.callSuccessors(ComplementDeterministicNwa.java:131) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.callSuccessors(ProductNwa.java:252) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.callSuccessors(ProductNwa.java:244) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addCallsAndSuccessors(NestedWordAutomatonReachableStates.java:1089) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:969) 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:698) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:627) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:454) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) 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) [2019-11-06 22:53:48,738 INFO L168 Benchmark]: Toolchain (without parser) took 27358.82 ms. Allocated memory was 145.8 MB in the beginning and 772.3 MB in the end (delta: 626.5 MB). Free memory was 97.1 MB in the beginning and 362.5 MB in the end (delta: -265.3 MB). Peak memory consumption was 361.2 MB. Max. memory is 7.1 GB. [2019-11-06 22:53:48,739 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-06 22:53:48,740 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1479.64 ms. Allocated memory was 145.8 MB in the beginning and 238.6 MB in the end (delta: 92.8 MB). Free memory was 96.9 MB in the beginning and 176.4 MB in the end (delta: -79.5 MB). Peak memory consumption was 48.8 MB. Max. memory is 7.1 GB. [2019-11-06 22:53:48,741 INFO L168 Benchmark]: Boogie Preprocessor took 224.09 ms. Allocated memory is still 238.6 MB. Free memory was 176.4 MB in the beginning and 164.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2019-11-06 22:53:48,745 INFO L168 Benchmark]: RCFGBuilder took 3973.60 ms. Allocated memory was 238.6 MB in the beginning and 265.8 MB in the end (delta: 27.3 MB). Free memory was 164.3 MB in the beginning and 152.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 100.6 MB. Max. memory is 7.1 GB. [2019-11-06 22:53:48,746 INFO L168 Benchmark]: TraceAbstraction took 21677.13 ms. Allocated memory was 265.8 MB in the beginning and 772.3 MB in the end (delta: 506.5 MB). Free memory was 152.5 MB in the beginning and 362.5 MB in the end (delta: -210.0 MB). Peak memory consumption was 296.5 MB. Max. memory is 7.1 GB. [2019-11-06 22:53:48,756 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1479.64 ms. Allocated memory was 145.8 MB in the beginning and 238.6 MB in the end (delta: 92.8 MB). Free memory was 96.9 MB in the beginning and 176.4 MB in the end (delta: -79.5 MB). Peak memory consumption was 48.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 224.09 ms. Allocated memory is still 238.6 MB. Free memory was 176.4 MB in the beginning and 164.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3973.60 ms. Allocated memory was 238.6 MB in the beginning and 265.8 MB in the end (delta: 27.3 MB). Free memory was 164.3 MB in the beginning and 152.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 100.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21677.13 ms. Allocated memory was 265.8 MB in the beginning and 772.3 MB in the end (delta: 506.5 MB). Free memory was 152.5 MB in the beginning and 362.5 MB in the end (delta: -210.0 MB). Peak memory consumption was 296.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: at least one of both input predicates is unknown: 16841#true or 18560#(and (= ~inputF~0 6) (= ~inputA~0 1) (= ~inputC~0 3) (= (+ ~a0~0 44) 0) (= |old(~inputA~0)| 1) (= |old(~a2~0)| 1) (= (+ main_~output~0 1) 0) (= ~inputD~0 4) (<= main_~input~0 2147483647) (= (+ |old(~a0~0)| 44) 0) (<= 0 (+ main_~input~0 2147483648)) (= |old(~inputE~0)| 5) (= ~a2~0 1) (= |old(~inputB~0)| 2) (= |old(~inputF~0)| 6) (= (+ ~a4~0 89) 0) (= |old(~inputC~0)| 3) (= ~inputB~0 2) (= (+ |old(~a29~0)| 127) 0) (= ~inputE~0 5) (= |old(~inputD~0)| 4) (= (+ |old(~a4~0)| 89) 0) (= (+ ~a29~0 127) 0)) ([#1{~inputA~0 = [1;1]; old(~inputA~0) = [1;1]; ~inputB~0 = [2;2]; old(~inputB~0) = [2;2]; ~inputC~0 = [3;3]; old(~inputC~0) = [3;3]; ~inputF~0 = [6;6]; old(~inputF~0) = [6;6]; ~inputD~0 = [4;4]; old(~inputD~0) = [4;4]; main_~input~0 = [-2147483648;2147483647]; ~inputE~0 = [5;5]; old(~inputE~0) = [5;5]; ~a4~0 = [-89;-89]; old(~a4~0) = [-89;-89]; ~a2~0 = [1;1]; old(~a2~0) = [1;1]; ~a0~0 = [-44;-44]; old(~a0~0) = [-44;-44]; ~a29~0 = [-127;-127]; old(~a29~0) = [-127;-127]; main_~output~0 = [-1;-1]; }]) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: at least one of both input predicates is unknown: 16841#true or 18560#(and (= ~inputF~0 6) (= ~inputA~0 1) (= ~inputC~0 3) (= (+ ~a0~0 44) 0) (= |old(~inputA~0)| 1) (= |old(~a2~0)| 1) (= (+ main_~output~0 1) 0) (= ~inputD~0 4) (<= main_~input~0 2147483647) (= (+ |old(~a0~0)| 44) 0) (<= 0 (+ main_~input~0 2147483648)) (= |old(~inputE~0)| 5) (= ~a2~0 1) (= |old(~inputB~0)| 2) (= |old(~inputF~0)| 6) (= (+ ~a4~0 89) 0) (= |old(~inputC~0)| 3) (= ~inputB~0 2) (= (+ |old(~a29~0)| 127) 0) (= ~inputE~0 5) (= |old(~inputD~0)| 4) (= (+ |old(~a4~0)| 89) 0) (= (+ ~a29~0 127) 0)) ([#1{~inputA~0 = [1;1]; old(~inputA~0) = [1;1]; ~inputB~0 = [2;2]; old(~inputB~0) = [2;2]; ~inputC~0 = [3;3]; old(~inputC~0) = [3;3]; ~inputF~0 = [6;6]; old(~inputF~0) = [6;6]; ~inputD~0 = [4;4]; old(~inputD~0) = [4;4]; main_~input~0 = [-2147483648;2147483647]; ~inputE~0 = [5;5]; old(~inputE~0) = [5;5]; ~a4~0 = [-89;-89]; old(~a4~0) = [-89;-89]; ~a2~0 = [1;1]; old(~a2~0) = [1;1]; ~a0~0 = [-44;-44]; old(~a0~0) = [-44;-44]; ~a29~0 = [-127;-127]; old(~a29~0) = [-127;-127]; main_~output~0 = [-1;-1]; }]): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$CoverageRelation.isCovered(PredicateUnifier.java:593) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...