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_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-09 06:40:20,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-09 06:40:20,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-09 06:40:20,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-09 06:40:20,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-09 06:40:20,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-09 06:40:20,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-09 06:40:20,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-09 06:40:20,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-09 06:40:20,166 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-09 06:40:20,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-09 06:40:20,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-09 06:40:20,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-09 06:40:20,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-09 06:40:20,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-09 06:40:20,169 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-09 06:40:20,190 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-09 06:40:20,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-09 06:40:20,191 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-09 06:40:20,191 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-09 06:40:20,191 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-09 06:40:20,192 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-09 06:40:20,192 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-09 06:40:20,192 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-09 06:40:20,193 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-09 06:40:20,194 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-09 06:40:20,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-09 06:40:20,196 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-09 06:40:20,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-09 06:40:20,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-09 06:40:20,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-09 06:40:20,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-09 06:40:20,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-09 06:40:20,197 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-09 06:40:20,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-09 06:40:20,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-09 06:40:20,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-09 06:40:20,198 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-09 06:40:20,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-09 06:40:20,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-09 06:40:20,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-09 06:40:20,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-09 06:40:20,199 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-09 06:40:20,199 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-09 06:40:20,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-09 06:40:20,200 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-09 06:40:20,254 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-09 06:40:20,266 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-09 06:40:20,270 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-09 06:40:20,271 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-09 06:40:20,271 INFO L275 PluginConnector]: CDTParser initialized [2019-09-09 06:40:20,272 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label05.c [2019-09-09 06:40:20,343 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d453f0b1/48e5b607cf524531afe87a000cbc3449/FLAGee0d86540 [2019-09-09 06:40:20,894 INFO L306 CDTParser]: Found 1 translation units. [2019-09-09 06:40:20,895 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label05.c [2019-09-09 06:40:20,908 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d453f0b1/48e5b607cf524531afe87a000cbc3449/FLAGee0d86540 [2019-09-09 06:40:21,188 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d453f0b1/48e5b607cf524531afe87a000cbc3449 [2019-09-09 06:40:21,196 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-09 06:40:21,197 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-09 06:40:21,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-09 06:40:21,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-09 06:40:21,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-09 06:40:21,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 06:40:21" (1/1) ... [2019-09-09 06:40:21,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3297db6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 06:40:21, skipping insertion in model container [2019-09-09 06:40:21,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 06:40:21" (1/1) ... [2019-09-09 06:40:21,213 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-09 06:40:21,267 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-09 06:40:21,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 06:40:21,877 INFO L188 MainTranslator]: Completed pre-run [2019-09-09 06:40:21,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 06:40:22,014 INFO L192 MainTranslator]: Completed translation [2019-09-09 06:40:22,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 06:40:22 WrapperNode [2019-09-09 06:40:22,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-09 06:40:22,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-09 06:40:22,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-09 06:40:22,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-09 06:40:22,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 06:40:22" (1/1) ... [2019-09-09 06:40:22,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 06:40:22" (1/1) ... [2019-09-09 06:40:22,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 06:40:22" (1/1) ... [2019-09-09 06:40:22,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 06:40:22" (1/1) ... [2019-09-09 06:40:22,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 06:40:22" (1/1) ... [2019-09-09 06:40:22,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 06:40:22" (1/1) ... [2019-09-09 06:40:22,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 06:40:22" (1/1) ... [2019-09-09 06:40:22,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-09 06:40:22,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-09 06:40:22,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-09 06:40:22,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-09 06:40:22,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 06:40:22" (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 [2019-09-09 06:40:22,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-09 06:40:22,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-09 06:40:22,197 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-09-09 06:40:22,197 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-09 06:40:22,198 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-09-09 06:40:22,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-09 06:40:22,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-09 06:40:22,198 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-09 06:40:22,198 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-09 06:40:22,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-09 06:40:22,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-09 06:40:23,396 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-09 06:40:23,396 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-09 06:40:23,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 06:40:23 BoogieIcfgContainer [2019-09-09 06:40:23,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-09 06:40:23,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-09 06:40:23,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-09 06:40:23,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-09 06:40:23,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.09 06:40:21" (1/3) ... [2019-09-09 06:40:23,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54819a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 06:40:23, skipping insertion in model container [2019-09-09 06:40:23,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 06:40:22" (2/3) ... [2019-09-09 06:40:23,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54819a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 06:40:23, skipping insertion in model container [2019-09-09 06:40:23,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 06:40:23" (3/3) ... [2019-09-09 06:40:23,412 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label05.c [2019-09-09 06:40:23,426 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-09 06:40:23,436 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-09 06:40:23,453 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-09 06:40:23,482 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-09 06:40:23,484 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-09 06:40:23,484 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-09 06:40:23,484 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-09 06:40:23,484 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-09 06:40:23,485 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-09 06:40:23,485 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-09 06:40:23,485 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-09 06:40:23,526 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2019-09-09 06:40:23,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-09-09 06:40:23,552 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 06:40:23,554 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 06:40:23,556 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 06:40:23,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 06:40:23,564 INFO L82 PathProgramCache]: Analyzing trace with hash -2092008314, now seen corresponding path program 1 times [2019-09-09 06:40:23,567 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 06:40:23,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:40:23,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 06:40:23,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:40:23,621 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 06:40:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 06:40:24,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 06:40:24,158 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 06:40:24,158 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-09 06:40:24,159 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 06:40:24,165 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-09 06:40:24,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-09 06:40:24,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 06:40:24,183 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2019-09-09 06:40:25,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 06:40:25,216 INFO L93 Difference]: Finished difference Result 388 states and 554 transitions. [2019-09-09 06:40:25,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-09 06:40:25,217 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2019-09-09 06:40:25,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 06:40:25,234 INFO L225 Difference]: With dead ends: 388 [2019-09-09 06:40:25,234 INFO L226 Difference]: Without dead ends: 320 [2019-09-09 06:40:25,236 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 06:40:25,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2019-09-09 06:40:25,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2019-09-09 06:40:25,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2019-09-09 06:40:25,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 465 transitions. [2019-09-09 06:40:25,303 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 465 transitions. Word has length 132 [2019-09-09 06:40:25,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 06:40:25,304 INFO L475 AbstractCegarLoop]: Abstraction has 320 states and 465 transitions. [2019-09-09 06:40:25,304 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-09 06:40:25,304 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 465 transitions. [2019-09-09 06:40:25,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-09-09 06:40:25,309 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 06:40:25,309 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 06:40:25,310 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 06:40:25,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 06:40:25,310 INFO L82 PathProgramCache]: Analyzing trace with hash 682738721, now seen corresponding path program 1 times [2019-09-09 06:40:25,310 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 06:40:25,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:40:25,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 06:40:25,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:40:25,312 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 06:40:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 06:40:25,648 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 06:40:25,649 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 06:40:25,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-09 06:40:25,649 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 06:40:25,652 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-09 06:40:25,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-09 06:40:25,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-09 06:40:25,653 INFO L87 Difference]: Start difference. First operand 320 states and 465 transitions. Second operand 5 states. [2019-09-09 06:40:26,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 06:40:26,291 INFO L93 Difference]: Finished difference Result 407 states and 552 transitions. [2019-09-09 06:40:26,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-09 06:40:26,291 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 140 [2019-09-09 06:40:26,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 06:40:26,296 INFO L225 Difference]: With dead ends: 407 [2019-09-09 06:40:26,296 INFO L226 Difference]: Without dead ends: 320 [2019-09-09 06:40:26,297 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-09 06:40:26,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2019-09-09 06:40:26,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2019-09-09 06:40:26,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2019-09-09 06:40:26,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 461 transitions. [2019-09-09 06:40:26,322 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 461 transitions. Word has length 140 [2019-09-09 06:40:26,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 06:40:26,322 INFO L475 AbstractCegarLoop]: Abstraction has 320 states and 461 transitions. [2019-09-09 06:40:26,323 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-09 06:40:26,323 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 461 transitions. [2019-09-09 06:40:26,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-09-09 06:40:26,326 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 06:40:26,326 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 06:40:26,326 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 06:40:26,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 06:40:26,327 INFO L82 PathProgramCache]: Analyzing trace with hash -2067720747, now seen corresponding path program 1 times [2019-09-09 06:40:26,327 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 06:40:26,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:40:26,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 06:40:26,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:40:26,328 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 06:40:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 06:40:26,627 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 06:40:26,628 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 06:40:26,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-09 06:40:26,628 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 06:40:26,629 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-09 06:40:26,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-09 06:40:26,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-09 06:40:26,630 INFO L87 Difference]: Start difference. First operand 320 states and 461 transitions. Second operand 5 states. [2019-09-09 06:40:27,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 06:40:27,343 INFO L93 Difference]: Finished difference Result 403 states and 544 transitions. [2019-09-09 06:40:27,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-09 06:40:27,344 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2019-09-09 06:40:27,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 06:40:27,348 INFO L225 Difference]: With dead ends: 403 [2019-09-09 06:40:27,348 INFO L226 Difference]: Without dead ends: 320 [2019-09-09 06:40:27,349 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-09 06:40:27,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2019-09-09 06:40:27,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2019-09-09 06:40:27,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2019-09-09 06:40:27,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 455 transitions. [2019-09-09 06:40:27,374 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 455 transitions. Word has length 146 [2019-09-09 06:40:27,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 06:40:27,374 INFO L475 AbstractCegarLoop]: Abstraction has 320 states and 455 transitions. [2019-09-09 06:40:27,375 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-09 06:40:27,375 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 455 transitions. [2019-09-09 06:40:27,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-09-09 06:40:27,377 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 06:40:27,378 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 06:40:27,378 INFO L418 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 06:40:27,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 06:40:27,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1033618530, now seen corresponding path program 1 times [2019-09-09 06:40:27,379 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 06:40:27,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:40:27,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 06:40:27,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:40:27,381 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 06:40:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 06:40:27,531 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 06:40:27,532 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 06:40:27,532 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-09 06:40:27,532 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 06:40:27,533 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-09 06:40:27,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-09 06:40:27,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-09 06:40:27,535 INFO L87 Difference]: Start difference. First operand 320 states and 455 transitions. Second operand 6 states. [2019-09-09 06:40:28,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 06:40:28,348 INFO L93 Difference]: Finished difference Result 637 states and 893 transitions. [2019-09-09 06:40:28,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-09 06:40:28,352 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2019-09-09 06:40:28,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 06:40:28,357 INFO L225 Difference]: With dead ends: 637 [2019-09-09 06:40:28,357 INFO L226 Difference]: Without dead ends: 637 [2019-09-09 06:40:28,357 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-09-09 06:40:28,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2019-09-09 06:40:28,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 626. [2019-09-09 06:40:28,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 626 states. [2019-09-09 06:40:28,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 870 transitions. [2019-09-09 06:40:28,382 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 870 transitions. Word has length 154 [2019-09-09 06:40:28,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 06:40:28,382 INFO L475 AbstractCegarLoop]: Abstraction has 626 states and 870 transitions. [2019-09-09 06:40:28,383 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-09 06:40:28,383 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 870 transitions. [2019-09-09 06:40:28,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-09-09 06:40:28,386 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 06:40:28,386 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 06:40:28,386 INFO L418 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 06:40:28,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 06:40:28,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1394591014, now seen corresponding path program 1 times [2019-09-09 06:40:28,387 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 06:40:28,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:40:28,388 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 06:40:28,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:40:28,388 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 06:40:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 06:40:28,622 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 06:40:28,622 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 06:40:28,622 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-09 06:40:28,622 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 06:40:28,623 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-09 06:40:28,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-09 06:40:28,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-09 06:40:28,624 INFO L87 Difference]: Start difference. First operand 626 states and 870 transitions. Second operand 5 states. [2019-09-09 06:40:29,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 06:40:29,355 INFO L93 Difference]: Finished difference Result 710 states and 956 transitions. [2019-09-09 06:40:29,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-09 06:40:29,357 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2019-09-09 06:40:29,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 06:40:29,362 INFO L225 Difference]: With dead ends: 710 [2019-09-09 06:40:29,362 INFO L226 Difference]: Without dead ends: 626 [2019-09-09 06:40:29,363 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-09 06:40:29,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2019-09-09 06:40:29,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 626. [2019-09-09 06:40:29,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 626 states. [2019-09-09 06:40:29,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 858 transitions. [2019-09-09 06:40:29,388 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 858 transitions. Word has length 156 [2019-09-09 06:40:29,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 06:40:29,388 INFO L475 AbstractCegarLoop]: Abstraction has 626 states and 858 transitions. [2019-09-09 06:40:29,389 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-09 06:40:29,389 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 858 transitions. [2019-09-09 06:40:29,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-09-09 06:40:29,392 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 06:40:29,392 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 06:40:29,393 INFO L418 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 06:40:29,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 06:40:29,393 INFO L82 PathProgramCache]: Analyzing trace with hash 124353046, now seen corresponding path program 1 times [2019-09-09 06:40:29,393 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 06:40:29,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:40:29,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 06:40:29,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:40:29,398 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 06:40:29,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 06:40:29,668 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 06:40:29,668 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 06:40:29,669 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-09 06:40:29,669 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 06:40:29,670 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-09 06:40:29,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-09 06:40:29,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-09 06:40:29,670 INFO L87 Difference]: Start difference. First operand 626 states and 858 transitions. Second operand 5 states. [2019-09-09 06:40:30,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 06:40:30,366 INFO L93 Difference]: Finished difference Result 712 states and 946 transitions. [2019-09-09 06:40:30,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-09 06:40:30,367 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 158 [2019-09-09 06:40:30,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 06:40:30,373 INFO L225 Difference]: With dead ends: 712 [2019-09-09 06:40:30,373 INFO L226 Difference]: Without dead ends: 626 [2019-09-09 06:40:30,374 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-09 06:40:30,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2019-09-09 06:40:30,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 626. [2019-09-09 06:40:30,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 626 states. [2019-09-09 06:40:30,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 842 transitions. [2019-09-09 06:40:30,393 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 842 transitions. Word has length 158 [2019-09-09 06:40:30,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 06:40:30,394 INFO L475 AbstractCegarLoop]: Abstraction has 626 states and 842 transitions. [2019-09-09 06:40:30,395 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-09 06:40:30,395 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 842 transitions. [2019-09-09 06:40:30,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-09-09 06:40:30,398 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 06:40:30,398 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-09 06:40:30,399 INFO L418 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 06:40:30,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 06:40:30,399 INFO L82 PathProgramCache]: Analyzing trace with hash 660846734, now seen corresponding path program 1 times [2019-09-09 06:40:30,399 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 06:40:30,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:40:30,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 06:40:30,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:40:30,407 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 06:40:30,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 06:40:30,517 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 06:40:30,526 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 06:40:30,526 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-09 06:40:30,526 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 06:40:30,527 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-09 06:40:30,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-09 06:40:30,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-09 06:40:30,528 INFO L87 Difference]: Start difference. First operand 626 states and 842 transitions. Second operand 6 states. [2019-09-09 06:40:31,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 06:40:31,341 INFO L93 Difference]: Finished difference Result 1238 states and 1702 transitions. [2019-09-09 06:40:31,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-09 06:40:31,341 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2019-09-09 06:40:31,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 06:40:31,349 INFO L225 Difference]: With dead ends: 1238 [2019-09-09 06:40:31,349 INFO L226 Difference]: Without dead ends: 1238 [2019-09-09 06:40:31,350 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-09-09 06:40:31,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2019-09-09 06:40:31,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 1218. [2019-09-09 06:40:31,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1218 states. [2019-09-09 06:40:31,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1635 transitions. [2019-09-09 06:40:31,387 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1635 transitions. Word has length 162 [2019-09-09 06:40:31,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 06:40:31,387 INFO L475 AbstractCegarLoop]: Abstraction has 1218 states and 1635 transitions. [2019-09-09 06:40:31,387 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-09 06:40:31,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1635 transitions. [2019-09-09 06:40:31,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-09-09 06:40:31,392 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 06:40:31,393 INFO L399 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, 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] [2019-09-09 06:40:31,393 INFO L418 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 06:40:31,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 06:40:31,394 INFO L82 PathProgramCache]: Analyzing trace with hash -390409458, now seen corresponding path program 1 times [2019-09-09 06:40:31,394 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 06:40:31,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:40:31,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 06:40:31,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 06:40:31,395 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 06:40:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 06:40:31,533 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 06:40:31,533 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-09 06:40:31,533 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-09 06:40:31,534 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 197 with the following transitions: [2019-09-09 06:40:31,537 INFO L207 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [107], [108], [112], [116], [120], [123], [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], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [735], [737], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2019-09-09 06:40:31,598 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-09 06:40:31,598 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-09 06:47:14,808 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-09 06:47:14,810 INFO L272 AbstractInterpreter]: Visited 136 different actions 266 times. Merged at 4 different actions 4 times. Never widened. Performed 541 root evaluator evaluations with a maximum evaluation depth of 18. Performed 541 inverse root evaluator evaluations with a maximum inverse evaluation depth of 18. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2019-09-09 06:47:14,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 06:47:14,814 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-09 06:52:35,616 INFO L227 lantSequenceWeakener]: Weakened 193 states. On average, predicates are now at 81.03% of their original sizes. [2019-09-09 06:52:35,616 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-09 06:52:35,799 INFO L420 sIntCurrentIteration]: We unified 195 AI predicates to 195 [2019-09-09 06:52:35,800 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-09 06:52:35,800 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-09 06:52:35,801 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2019-09-09 06:52:35,801 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 06:52:35,802 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-09 06:52:35,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-09 06:52:35,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2019-09-09 06:52:35,803 INFO L87 Difference]: Start difference. First operand 1218 states and 1635 transitions. Second operand 16 states. [2019-09-09 06:52:52,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-09 06:52:52,705 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:696) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:625) 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) [2019-09-09 06:52:52,712 INFO L168 Benchmark]: Toolchain (without parser) took 751513.36 ms. Allocated memory was 134.7 MB in the beginning and 318.8 MB in the end (delta: 184.0 MB). Free memory was 89.2 MB in the beginning and 136.7 MB in the end (delta: -47.5 MB). Peak memory consumption was 136.5 MB. Max. memory is 7.1 GB. [2019-09-09 06:52:52,713 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 134.7 MB. Free memory was 109.2 MB in the beginning and 109.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-09 06:52:52,718 INFO L168 Benchmark]: CACSL2BoogieTranslator took 816.89 ms. Allocated memory was 134.7 MB in the beginning and 201.9 MB in the end (delta: 67.1 MB). Free memory was 89.0 MB in the beginning and 163.4 MB in the end (delta: -74.5 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2019-09-09 06:52:52,719 INFO L168 Benchmark]: Boogie Preprocessor took 103.96 ms. Allocated memory is still 201.9 MB. Free memory was 163.4 MB in the beginning and 158.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2019-09-09 06:52:52,720 INFO L168 Benchmark]: RCFGBuilder took 1279.08 ms. Allocated memory was 201.9 MB in the beginning and 229.6 MB in the end (delta: 27.8 MB). Free memory was 158.4 MB in the beginning and 176.5 MB in the end (delta: -18.1 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2019-09-09 06:52:52,727 INFO L168 Benchmark]: TraceAbstraction took 749309.34 ms. Allocated memory was 229.6 MB in the beginning and 318.8 MB in the end (delta: 89.1 MB). Free memory was 176.5 MB in the beginning and 136.7 MB in the end (delta: 39.8 MB). Peak memory consumption was 128.9 MB. Max. memory is 7.1 GB. [2019-09-09 06:52:52,735 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 134.7 MB. Free memory was 109.2 MB in the beginning and 109.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 816.89 ms. Allocated memory was 134.7 MB in the beginning and 201.9 MB in the end (delta: 67.1 MB). Free memory was 89.0 MB in the beginning and 163.4 MB in the end (delta: -74.5 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.96 ms. Allocated memory is still 201.9 MB. Free memory was 163.4 MB in the beginning and 158.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1279.08 ms. Allocated memory was 201.9 MB in the beginning and 229.6 MB in the end (delta: 27.8 MB). Free memory was 158.4 MB in the beginning and 176.5 MB in the end (delta: -18.1 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 749309.34 ms. Allocated memory was 229.6 MB in the beginning and 318.8 MB in the end (delta: 89.1 MB). Free memory was 176.5 MB in the beginning and 136.7 MB in the end (delta: 39.8 MB). Peak memory consumption was 128.9 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...