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.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label46_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:48:59,572 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:48:59,574 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:48:59,587 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:48:59,587 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:48:59,588 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:48:59,590 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:48:59,591 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:48:59,593 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:48:59,594 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:48:59,595 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:48:59,595 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:48:59,596 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:48:59,597 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:48:59,598 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:48:59,599 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:48:59,600 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:48:59,602 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:48:59,604 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:48:59,605 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:48:59,606 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:48:59,608 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:48:59,610 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 18:48:59,610 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 18:48:59,611 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 18:48:59,611 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 18:48:59,612 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 18:48:59,613 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 18:48:59,614 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 18:48:59,615 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 18:48:59,616 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 18:48:59,616 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 18:48:59,617 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 18:48:59,617 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 18:48:59,618 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 18:48:59,618 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 18:48:59,619 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 18:48:59,638 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:48:59,638 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:48:59,641 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:48:59,641 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:48:59,641 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:48:59,642 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:48:59,642 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:48:59,642 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:48:59,642 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:48:59,642 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:48:59,643 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:48:59,643 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:48:59,643 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:48:59,644 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:48:59,645 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:48:59,645 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:48:59,645 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:48:59,645 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:48:59,646 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:48:59,646 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:48:59,646 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:48:59,646 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:48:59,646 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:48:59,646 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:48:59,647 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:48:59,647 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:48:59,647 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:48:59,647 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:48:59,647 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:48:59,648 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:48:59,648 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:48:59,648 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:48:59,648 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:48:59,648 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:48:59,692 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:48:59,706 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:48:59,709 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:48:59,711 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:48:59,712 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:48:59,712 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label46_false-unreach-call.c [2018-10-24 18:48:59,772 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8d20d2ff7/4d56d9c5fba74c37b88527b57ad06881/FLAG895cb189e [2018-10-24 18:49:00,414 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:49:00,416 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label46_false-unreach-call.c [2018-10-24 18:49:00,438 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8d20d2ff7/4d56d9c5fba74c37b88527b57ad06881/FLAG895cb189e [2018-10-24 18:49:00,457 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8d20d2ff7/4d56d9c5fba74c37b88527b57ad06881 [2018-10-24 18:49:00,468 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:49:00,470 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:49:00,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:49:00,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:49:00,475 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:49:00,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:49:00" (1/1) ... [2018-10-24 18:49:00,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa98528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:00, skipping insertion in model container [2018-10-24 18:49:00,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:49:00" (1/1) ... [2018-10-24 18:49:00,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:49:00,598 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:49:01,509 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:49:01,513 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:49:01,793 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:49:01,815 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:49:01,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:01 WrapperNode [2018-10-24 18:49:01,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:49:01,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:49:01,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:49:01,817 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:49:01,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:01" (1/1) ... [2018-10-24 18:49:01,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:01" (1/1) ... [2018-10-24 18:49:02,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:49:02,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:49:02,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:49:02,119 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:49:02,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:01" (1/1) ... [2018-10-24 18:49:02,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:01" (1/1) ... [2018-10-24 18:49:02,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:01" (1/1) ... [2018-10-24 18:49:02,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:01" (1/1) ... [2018-10-24 18:49:02,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:01" (1/1) ... [2018-10-24 18:49:02,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:01" (1/1) ... [2018-10-24 18:49:02,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:01" (1/1) ... [2018-10-24 18:49:02,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:49:02,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:49:02,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:49:02,296 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:49:02,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:01" (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 [2018-10-24 18:49:02,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:49:02,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:49:02,366 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:49:02,367 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:49:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:49:02,367 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:49:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:49:02,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:49:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:49:02,368 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:49:08,657 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:49:08,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:49:08 BoogieIcfgContainer [2018-10-24 18:49:08,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:49:08,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:49:08,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:49:08,663 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:49:08,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:49:00" (1/3) ... [2018-10-24 18:49:08,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f095bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:49:08, skipping insertion in model container [2018-10-24 18:49:08,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:49:01" (2/3) ... [2018-10-24 18:49:08,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f095bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:49:08, skipping insertion in model container [2018-10-24 18:49:08,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:49:08" (3/3) ... [2018-10-24 18:49:08,667 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label46_false-unreach-call.c [2018-10-24 18:49:08,675 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:49:08,683 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:49:08,700 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:49:08,741 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:49:08,741 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:49:08,741 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:49:08,742 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:49:08,742 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:49:08,742 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:49:08,742 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:49:08,742 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:49:08,777 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-10-24 18:49:08,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-24 18:49:08,784 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:49:08,785 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] [2018-10-24 18:49:08,788 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:49:08,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:49:08,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1596668835, now seen corresponding path program 1 times [2018-10-24 18:49:08,797 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:49:08,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:49:08,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:49:08,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:49:08,857 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:49:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:49:09,197 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:49:09,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:49:09,282 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:49:09,283 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 18:49:09,283 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:49:09,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 18:49:09,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 18:49:09,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:49:09,308 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-10-24 18:49:13,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:49:13,178 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-10-24 18:49:13,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 18:49:13,181 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-10-24 18:49:13,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:49:13,206 INFO L225 Difference]: With dead ends: 1156 [2018-10-24 18:49:13,207 INFO L226 Difference]: Without dead ends: 744 [2018-10-24 18:49:13,217 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:49:13,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-10-24 18:49:13,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-10-24 18:49:13,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-10-24 18:49:13,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1343 transitions. [2018-10-24 18:49:13,338 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1343 transitions. Word has length 23 [2018-10-24 18:49:13,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:49:13,339 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 1343 transitions. [2018-10-24 18:49:13,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 18:49:13,340 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1343 transitions. [2018-10-24 18:49:13,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-10-24 18:49:13,348 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:49:13,349 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:49:13,350 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:49:13,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:49:13,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1825616223, now seen corresponding path program 1 times [2018-10-24 18:49:13,351 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:49:13,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:49:13,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:49:13,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:49:13,353 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:49:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:49:13,766 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:49:13,767 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:49:13,767 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:49:13,767 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:49:13,770 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:49:13,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:49:13,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:49:13,771 INFO L87 Difference]: Start difference. First operand 744 states and 1343 transitions. Second operand 6 states. [2018-10-24 18:49:21,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:49:21,506 INFO L93 Difference]: Finished difference Result 2846 states and 5292 transitions. [2018-10-24 18:49:21,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:49:21,509 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 96 [2018-10-24 18:49:21,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:49:21,531 INFO L225 Difference]: With dead ends: 2846 [2018-10-24 18:49:21,531 INFO L226 Difference]: Without dead ends: 2108 [2018-10-24 18:49:21,539 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 18:49:21,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2108 states. [2018-10-24 18:49:21,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2108 to 2090. [2018-10-24 18:49:21,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2090 states. [2018-10-24 18:49:21,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 3323 transitions. [2018-10-24 18:49:21,637 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 3323 transitions. Word has length 96 [2018-10-24 18:49:21,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:49:21,638 INFO L481 AbstractCegarLoop]: Abstraction has 2090 states and 3323 transitions. [2018-10-24 18:49:21,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:49:21,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 3323 transitions. [2018-10-24 18:49:21,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-10-24 18:49:21,648 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:49:21,649 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:49:21,649 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:49:21,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:49:21,650 INFO L82 PathProgramCache]: Analyzing trace with hash -925105612, now seen corresponding path program 1 times [2018-10-24 18:49:21,650 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:49:21,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:49:21,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:49:21,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:49:21,652 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:49:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:49:21,988 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:49:21,989 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:49:21,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:49:21,989 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:49:21,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:49:21,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:49:21,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:49:21,990 INFO L87 Difference]: Start difference. First operand 2090 states and 3323 transitions. Second operand 6 states. [2018-10-24 18:49:29,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:49:29,465 INFO L93 Difference]: Finished difference Result 5549 states and 9209 transitions. [2018-10-24 18:49:29,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:49:29,470 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-10-24 18:49:29,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:49:29,498 INFO L225 Difference]: With dead ends: 5549 [2018-10-24 18:49:29,498 INFO L226 Difference]: Without dead ends: 3465 [2018-10-24 18:49:29,512 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 18:49:29,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3465 states. [2018-10-24 18:49:29,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3465 to 3433. [2018-10-24 18:49:29,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3433 states. [2018-10-24 18:49:29,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3433 states to 3433 states and 5124 transitions. [2018-10-24 18:49:29,620 INFO L78 Accepts]: Start accepts. Automaton has 3433 states and 5124 transitions. Word has length 125 [2018-10-24 18:49:29,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:49:29,621 INFO L481 AbstractCegarLoop]: Abstraction has 3433 states and 5124 transitions. [2018-10-24 18:49:29,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:49:29,621 INFO L276 IsEmpty]: Start isEmpty. Operand 3433 states and 5124 transitions. [2018-10-24 18:49:29,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-10-24 18:49:29,627 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:49:29,628 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 18:49:29,628 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:49:29,628 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:49:29,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1605353442, now seen corresponding path program 1 times [2018-10-24 18:49:29,629 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:49:29,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:49:29,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:49:29,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:49:29,630 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:49:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:49:29,966 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:49:30,405 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 32 proven. 97 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 18:49:30,405 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:49:30,405 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:49:30,406 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 237 with the following transitions: [2018-10-24 18:49:30,408 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [263], [265], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [800], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-24 18:49:30,501 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:49:30,501 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:49:33,106 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:49:33,107 INFO L272 AbstractInterpreter]: Visited 116 different actions 116 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 18:49:33,121 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:49:33,121 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:49:35,006 INFO L232 lantSequenceWeakener]: Weakened 228 states. On average, predicates are now at 77.46% of their original sizes. [2018-10-24 18:49:35,007 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:49:35,465 INFO L413 sIntCurrentIteration]: We have 235 unified AI predicates [2018-10-24 18:49:35,465 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:49:35,466 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:49:35,466 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 18:49:35,466 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:49:35,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 18:49:35,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 18:49:35,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 18:49:35,468 INFO L87 Difference]: Start difference. First operand 3433 states and 5124 transitions. Second operand 7 states. [2018-10-24 18:49:37,806 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:50:12,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:50:12,399 INFO L93 Difference]: Finished difference Result 7200 states and 10779 transitions. [2018-10-24 18:50:12,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:50:12,399 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 236 [2018-10-24 18:50:12,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:50:12,426 INFO L225 Difference]: With dead ends: 7200 [2018-10-24 18:50:12,426 INFO L226 Difference]: Without dead ends: 3773 [2018-10-24 18:50:12,438 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 236 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:50:12,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3773 states. [2018-10-24 18:50:12,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3773 to 3771. [2018-10-24 18:50:12,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3771 states. [2018-10-24 18:50:12,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3771 states to 3771 states and 5470 transitions. [2018-10-24 18:50:12,533 INFO L78 Accepts]: Start accepts. Automaton has 3771 states and 5470 transitions. Word has length 236 [2018-10-24 18:50:12,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:50:12,533 INFO L481 AbstractCegarLoop]: Abstraction has 3771 states and 5470 transitions. [2018-10-24 18:50:12,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 18:50:12,534 INFO L276 IsEmpty]: Start isEmpty. Operand 3771 states and 5470 transitions. [2018-10-24 18:50:12,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2018-10-24 18:50:12,540 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:50:12,540 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:50:12,541 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:50:12,541 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:50:12,541 INFO L82 PathProgramCache]: Analyzing trace with hash 732549473, now seen corresponding path program 1 times [2018-10-24 18:50:12,541 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:50:12,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:50:12,543 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:50:12,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:50:12,543 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:50:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:50:12,833 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 54 proven. 206 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-10-24 18:50:12,833 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:50:12,833 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:50:12,834 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 329 with the following transitions: [2018-10-24 18:50:12,834 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [263], [265], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [800], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-24 18:50:12,840 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:50:12,840 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:50:14,032 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:50:21,467 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:50:21,468 INFO L272 AbstractInterpreter]: Visited 120 different actions 351 times. Merged at 5 different actions 13 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 18:50:21,477 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:50:21,477 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:50:24,168 INFO L232 lantSequenceWeakener]: Weakened 109 states. On average, predicates are now at 78.04% of their original sizes. [2018-10-24 18:50:24,169 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:50:44,936 INFO L413 sIntCurrentIteration]: We have 327 unified AI predicates [2018-10-24 18:50:44,936 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:50:44,936 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:50:44,937 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [6] total 27 [2018-10-24 18:50:44,937 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:50:44,938 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-10-24 18:50:44,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-10-24 18:50:44,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2018-10-24 18:50:44,938 INFO L87 Difference]: Start difference. First operand 3771 states and 5470 transitions. Second operand 23 states. Received shutdown request... [2018-10-24 18:53:02,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-10-24 18:53:02,557 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:53:02,562 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:53:02,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:53:02 BoogieIcfgContainer [2018-10-24 18:53:02,563 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:53:02,564 INFO L168 Benchmark]: Toolchain (without parser) took 242094.88 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -158.9 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-10-24 18:53:02,565 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 18:53:02,565 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1344.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-10-24 18:53:02,566 INFO L168 Benchmark]: Boogie Procedure Inliner took 302.59 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 743.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -845.5 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2018-10-24 18:53:02,567 INFO L168 Benchmark]: Boogie Preprocessor took 175.79 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2018-10-24 18:53:02,568 INFO L168 Benchmark]: RCFGBuilder took 6363.01 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 257.9 MB). Peak memory consumption was 257.9 MB. Max. memory is 7.1 GB. [2018-10-24 18:53:02,569 INFO L168 Benchmark]: TraceAbstraction took 233903.83 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 1.6 GB in the end (delta: 341.0 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-10-24 18:53:02,574 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1344.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 302.59 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 743.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -845.5 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 175.79 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6363.01 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 257.9 MB). Peak memory consumption was 257.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 233903.83 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 1.6 GB in the end (delta: 341.0 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 55). Cancelled while BasicCegarLoop was constructing difference of abstraction (3771states) and FLOYD_HOARE automaton (currently 25 states, 23 states before enhancement),while ReachableStatesComputation was computing reachable states (1140 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 233.8s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 193.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 823 SDtfs, 7266 SDslu, 589 SDs, 0 SdLazy, 9421 SolverSat, 2735 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 72.8s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 598 GetRequests, 527 SyntacticMatches, 19 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 25.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3771occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 11.3s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9956515292175976 AbsIntWeakeningRatio, 0.10320284697508897 AbsIntAvgWeakeningVarsNumRemoved, 552.288256227758 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 52 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 808 NumberOfCodeBlocks, 808 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 803 ConstructedInterpolants, 0 QuantifiedInterpolants, 620011 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 197/500 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown