java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label22_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 01:42:32,543 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 01:42:32,549 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 01:42:32,565 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 01:42:32,566 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 01:42:32,567 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 01:42:32,568 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 01:42:32,572 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 01:42:32,575 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 01:42:32,576 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 01:42:32,585 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 01:42:32,585 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 01:42:32,586 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 01:42:32,590 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 01:42:32,592 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 01:42:32,592 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 01:42:32,596 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 01:42:32,599 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 01:42:32,604 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 01:42:32,606 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 01:42:32,607 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 01:42:32,610 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 01:42:32,612 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-25 01:42:32,612 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-25 01:42:32,613 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-25 01:42:32,614 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-25 01:42:32,616 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-25 01:42:32,617 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-25 01:42:32,618 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-25 01:42:32,622 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-25 01:42:32,623 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-25 01:42:32,624 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-25 01:42:32,624 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-25 01:42:32,624 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-25 01:42:32,625 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-25 01:42:32,627 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-25 01:42:32,628 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-25 01:42:32,656 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 01:42:32,656 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 01:42:32,657 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 01:42:32,657 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 01:42:32,657 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 01:42:32,658 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 01:42:32,658 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 01:42:32,658 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 01:42:32,658 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 01:42:32,659 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 01:42:32,659 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 01:42:32,659 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 01:42:32,659 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 01:42:32,659 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 01:42:32,660 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 01:42:32,661 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 01:42:32,662 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 01:42:32,662 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 01:42:32,662 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 01:42:32,662 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 01:42:32,663 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 01:42:32,663 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 01:42:32,663 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 01:42:32,663 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 01:42:32,663 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 01:42:32,664 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 01:42:32,664 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 01:42:32,665 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 01:42:32,665 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 01:42:32,665 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 01:42:32,665 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 01:42:32,665 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 01:42:32,666 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 01:42:32,666 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 01:42:32,666 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 01:42:32,666 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 01:42:32,738 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 01:42:32,752 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 01:42:32,757 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 01:42:32,760 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 01:42:32,760 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 01:42:32,761 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label22_true-unreach-call.c [2018-10-25 01:42:32,830 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/58ca7cd3c/97123c07ac3f42d8864f3e683866c801/FLAGbd5bdcc65 [2018-10-25 01:42:33,626 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 01:42:33,627 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label22_true-unreach-call.c [2018-10-25 01:42:33,667 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/58ca7cd3c/97123c07ac3f42d8864f3e683866c801/FLAGbd5bdcc65 [2018-10-25 01:42:33,688 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/58ca7cd3c/97123c07ac3f42d8864f3e683866c801 [2018-10-25 01:42:33,702 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 01:42:33,704 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 01:42:33,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 01:42:33,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 01:42:33,711 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 01:42:33,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:42:33" (1/1) ... [2018-10-25 01:42:33,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e21aa8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:42:33, skipping insertion in model container [2018-10-25 01:42:33,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:42:33" (1/1) ... [2018-10-25 01:42:33,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 01:42:33,924 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 01:42:35,409 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:42:35,414 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 01:42:36,347 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:42:36,388 INFO L193 MainTranslator]: Completed translation [2018-10-25 01:42:36,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:42:36 WrapperNode [2018-10-25 01:42:36,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 01:42:36,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 01:42:36,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 01:42:36,390 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 01:42:36,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:42:36" (1/1) ... [2018-10-25 01:42:36,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:42:36" (1/1) ... [2018-10-25 01:42:36,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 01:42:36,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 01:42:36,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 01:42:36,978 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 01:42:36,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:42:36" (1/1) ... [2018-10-25 01:42:36,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:42:36" (1/1) ... [2018-10-25 01:42:37,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:42:36" (1/1) ... [2018-10-25 01:42:37,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:42:36" (1/1) ... [2018-10-25 01:42:37,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:42:36" (1/1) ... [2018-10-25 01:42:37,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:42:36" (1/1) ... [2018-10-25 01:42:37,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:42:36" (1/1) ... [2018-10-25 01:42:37,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 01:42:37,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 01:42:37,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 01:42:37,291 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 01:42:37,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:42:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-25 01:42:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 01:42:37,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 01:42:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-25 01:42:37,361 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-25 01:42:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-25 01:42:37,362 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-25 01:42:37,362 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-25 01:42:37,362 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-25 01:42:37,362 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 01:42:37,362 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 01:42:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 01:42:37,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 01:42:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 01:42:37,364 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 01:42:47,925 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 01:42:47,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:42:47 BoogieIcfgContainer [2018-10-25 01:42:47,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 01:42:47,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 01:42:47,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 01:42:47,937 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 01:42:47,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 01:42:33" (1/3) ... [2018-10-25 01:42:47,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b1f930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:42:47, skipping insertion in model container [2018-10-25 01:42:47,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:42:36" (2/3) ... [2018-10-25 01:42:47,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b1f930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:42:47, skipping insertion in model container [2018-10-25 01:42:47,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:42:47" (3/3) ... [2018-10-25 01:42:47,941 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label22_true-unreach-call.c [2018-10-25 01:42:47,951 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 01:42:47,968 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 01:42:47,988 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 01:42:48,057 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 01:42:48,058 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 01:42:48,058 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 01:42:48,058 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 01:42:48,058 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 01:42:48,058 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 01:42:48,060 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 01:42:48,060 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 01:42:48,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-25 01:42:48,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-25 01:42:48,129 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:42:48,130 INFO L375 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] [2018-10-25 01:42:48,133 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:42:48,141 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:42:48,142 INFO L82 PathProgramCache]: Analyzing trace with hash -380938253, now seen corresponding path program 1 times [2018-10-25 01:42:48,145 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:42:48,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:42:48,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:42:48,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:42:48,210 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:42:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:42:48,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:42:48,675 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:42:48,675 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 01:42:48,675 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:42:48,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 01:42:48,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 01:42:48,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 01:42:48,705 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-10-25 01:43:07,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:43:07,280 INFO L93 Difference]: Finished difference Result 4105 states and 7669 transitions. [2018-10-25 01:43:07,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 01:43:07,282 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2018-10-25 01:43:07,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:43:07,334 INFO L225 Difference]: With dead ends: 4105 [2018-10-25 01:43:07,334 INFO L226 Difference]: Without dead ends: 2979 [2018-10-25 01:43:07,347 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 01:43:07,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2018-10-25 01:43:07,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2849. [2018-10-25 01:43:07,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2849 states. [2018-10-25 01:43:07,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2849 states to 2849 states and 5075 transitions. [2018-10-25 01:43:07,538 INFO L78 Accepts]: Start accepts. Automaton has 2849 states and 5075 transitions. Word has length 39 [2018-10-25 01:43:07,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:43:07,539 INFO L481 AbstractCegarLoop]: Abstraction has 2849 states and 5075 transitions. [2018-10-25 01:43:07,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 01:43:07,539 INFO L276 IsEmpty]: Start isEmpty. Operand 2849 states and 5075 transitions. [2018-10-25 01:43:07,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-10-25 01:43:07,553 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:43:07,554 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:43:07,554 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:43:07,555 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:43:07,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1766897295, now seen corresponding path program 1 times [2018-10-25 01:43:07,556 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:43:07,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:43:07,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:43:07,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:43:07,559 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:43:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:43:07,925 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 01:43:08,196 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:43:08,196 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:43:08,196 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 01:43:08,197 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:43:08,198 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:43:08,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:43:08,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:43:08,199 INFO L87 Difference]: Start difference. First operand 2849 states and 5075 transitions. Second operand 6 states. [2018-10-25 01:43:25,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:43:25,308 INFO L93 Difference]: Finished difference Result 10635 states and 19580 transitions. [2018-10-25 01:43:25,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 01:43:25,309 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 110 [2018-10-25 01:43:25,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:43:25,360 INFO L225 Difference]: With dead ends: 10635 [2018-10-25 01:43:25,360 INFO L226 Difference]: Without dead ends: 7792 [2018-10-25 01:43:25,379 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-25 01:43:25,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7792 states. [2018-10-25 01:43:25,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7792 to 7729. [2018-10-25 01:43:25,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7729 states. [2018-10-25 01:43:25,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7729 states to 7729 states and 12373 transitions. [2018-10-25 01:43:25,600 INFO L78 Accepts]: Start accepts. Automaton has 7729 states and 12373 transitions. Word has length 110 [2018-10-25 01:43:25,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:43:25,600 INFO L481 AbstractCegarLoop]: Abstraction has 7729 states and 12373 transitions. [2018-10-25 01:43:25,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:43:25,601 INFO L276 IsEmpty]: Start isEmpty. Operand 7729 states and 12373 transitions. [2018-10-25 01:43:25,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-10-25 01:43:25,613 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:43:25,613 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:43:25,613 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:43:25,613 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:43:25,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1433958942, now seen corresponding path program 1 times [2018-10-25 01:43:25,614 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:43:25,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:43:25,615 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:43:25,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:43:25,615 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:43:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:43:25,939 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 01:43:26,155 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:43:26,156 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:43:26,156 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 01:43:26,156 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:43:26,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:43:26,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:43:26,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:43:26,158 INFO L87 Difference]: Start difference. First operand 7729 states and 12373 transitions. Second operand 6 states. [2018-10-25 01:43:45,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:43:45,827 INFO L93 Difference]: Finished difference Result 21334 states and 35505 transitions. [2018-10-25 01:43:45,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 01:43:45,829 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 113 [2018-10-25 01:43:45,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:43:45,904 INFO L225 Difference]: With dead ends: 21334 [2018-10-25 01:43:45,904 INFO L226 Difference]: Without dead ends: 13611 [2018-10-25 01:43:45,939 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-25 01:43:45,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13611 states. [2018-10-25 01:43:46,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13611 to 13533. [2018-10-25 01:43:46,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13533 states. [2018-10-25 01:43:46,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13533 states to 13533 states and 20794 transitions. [2018-10-25 01:43:46,265 INFO L78 Accepts]: Start accepts. Automaton has 13533 states and 20794 transitions. Word has length 113 [2018-10-25 01:43:46,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:43:46,266 INFO L481 AbstractCegarLoop]: Abstraction has 13533 states and 20794 transitions. [2018-10-25 01:43:46,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:43:46,266 INFO L276 IsEmpty]: Start isEmpty. Operand 13533 states and 20794 transitions. [2018-10-25 01:43:46,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-25 01:43:46,270 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:43:46,271 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:43:46,271 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:43:46,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:43:46,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1170956786, now seen corresponding path program 1 times [2018-10-25 01:43:46,272 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:43:46,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:43:46,276 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:43:46,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:43:46,277 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:43:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:43:46,446 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:43:46,446 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:43:46,446 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-25 01:43:46,446 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:43:46,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-25 01:43:46,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-25 01:43:46,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-25 01:43:46,447 INFO L87 Difference]: Start difference. First operand 13533 states and 20794 transitions. Second operand 5 states. [2018-10-25 01:44:00,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:44:00,938 INFO L93 Difference]: Finished difference Result 40056 states and 65127 transitions. [2018-10-25 01:44:00,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-25 01:44:00,939 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 123 [2018-10-25 01:44:00,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:44:01,045 INFO L225 Difference]: With dead ends: 40056 [2018-10-25 01:44:01,045 INFO L226 Difference]: Without dead ends: 26529 [2018-10-25 01:44:01,091 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-25 01:44:01,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26529 states. [2018-10-25 01:44:01,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26529 to 26229. [2018-10-25 01:44:01,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26229 states. [2018-10-25 01:44:01,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26229 states to 26229 states and 38609 transitions. [2018-10-25 01:44:01,711 INFO L78 Accepts]: Start accepts. Automaton has 26229 states and 38609 transitions. Word has length 123 [2018-10-25 01:44:01,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:44:01,711 INFO L481 AbstractCegarLoop]: Abstraction has 26229 states and 38609 transitions. [2018-10-25 01:44:01,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-25 01:44:01,712 INFO L276 IsEmpty]: Start isEmpty. Operand 26229 states and 38609 transitions. [2018-10-25 01:44:01,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-10-25 01:44:01,715 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:44:01,715 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:44:01,715 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:44:01,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:44:01,716 INFO L82 PathProgramCache]: Analyzing trace with hash 531830176, now seen corresponding path program 1 times [2018-10-25 01:44:01,716 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:44:01,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:44:01,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:44:01,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:44:01,717 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:44:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:44:02,035 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 01:44:02,640 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:44:02,640 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:44:02,641 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:44:02,643 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-10-25 01:44:02,646 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2839], [2841], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-25 01:44:02,703 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:44:02,704 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:44:03,751 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 01:44:03,753 INFO L272 AbstractInterpreter]: Visited 108 different actions 311 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-25 01:44:03,797 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:44:03,797 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 01:44:04,401 INFO L232 lantSequenceWeakener]: Weakened 31 states. On average, predicates are now at 74.62% of their original sizes. [2018-10-25 01:44:04,401 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 01:44:05,070 INFO L413 sIntCurrentIteration]: We have 139 unified AI predicates [2018-10-25 01:44:05,070 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 01:44:05,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 01:44:05,072 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [7] total 19 [2018-10-25 01:44:05,072 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:44:05,073 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-25 01:44:05,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-25 01:44:05,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-10-25 01:44:05,074 INFO L87 Difference]: Start difference. First operand 26229 states and 38609 transitions. Second operand 14 states. [2018-10-25 01:44:15,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-25 01:44:15,924 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger: modulus not positive at java.math.BigInteger.mod(BigInteger.java:2458) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueValue.modulo(ExplicitValueValue.java:154) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueValue.modulo(ExplicitValueValue.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:100) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.ConditionalEvaluator.evaluate(ConditionalEvaluator.java:78) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.ConditionalEvaluator.evaluate(ConditionalEvaluator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleAssumeStatement(NonrelationalStatementProcessor.java:363) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:160) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:142) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:128) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:362) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:353) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.applyPost(TermConjunctEvaluator.java:305) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$4(TermConjunctEvaluator.java:178) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computeFixpoint(TermConjunctEvaluator.java:198) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$1(TermConjunctEvaluator.java:150) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computePost(TermConjunctEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.applyPost(PoormanCachedPostOperation.java:308) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:119) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:369) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:537) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:369) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalTransitionWithValidState(AbsIntHoareTripleChecker.java:352) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalAbsInt(AbsIntHoareTripleChecker.java:249) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternal(AbsIntHoareTripleChecker.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$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:673) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:602) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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) [2018-10-25 01:44:15,936 INFO L168 Benchmark]: Toolchain (without parser) took 102233.04 ms. Allocated memory was 1.5 GB in the beginning and 3.1 GB in the end (delta: 1.6 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -831.1 MB). Peak memory consumption was 728.6 MB. Max. memory is 7.1 GB. [2018-10-25 01:44:15,937 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-25 01:44:15,938 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2683.99 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-25 01:44:15,939 INFO L168 Benchmark]: Boogie Procedure Inliner took 587.73 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 811.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. [2018-10-25 01:44:15,940 INFO L168 Benchmark]: Boogie Preprocessor took 312.68 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 37.1 MB). Peak memory consumption was 37.1 MB. Max. memory is 7.1 GB. [2018-10-25 01:44:15,941 INFO L168 Benchmark]: RCFGBuilder took 10638.65 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 186.6 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 5.8 MB). Peak memory consumption was 650.1 MB. Max. memory is 7.1 GB. [2018-10-25 01:44:15,942 INFO L168 Benchmark]: TraceAbstraction took 88004.28 ms. Allocated memory was 2.5 GB in the beginning and 3.1 GB in the end (delta: 562.0 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -55.2 MB). Peak memory consumption was 506.9 MB. Max. memory is 7.1 GB. [2018-10-25 01:44:15,953 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2683.99 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 587.73 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 811.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 312.68 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 37.1 MB). Peak memory consumption was 37.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10638.65 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 186.6 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 5.8 MB). Peak memory consumption was 650.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 88004.28 ms. Allocated memory was 2.5 GB in the beginning and 3.1 GB in the end (delta: 562.0 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -55.2 MB). Peak memory consumption was 506.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger: modulus not positive de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger: modulus not positive: java.math.BigInteger.mod(BigInteger.java:2458) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...