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-INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label53_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 14:39:56,602 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 14:39:56,605 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 14:39:56,623 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 14:39:56,623 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 14:39:56,625 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 14:39:56,626 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 14:39:56,628 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 14:39:56,629 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 14:39:56,630 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 14:39:56,631 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 14:39:56,631 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 14:39:56,632 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 14:39:56,633 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 14:39:56,634 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 14:39:56,635 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 14:39:56,636 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 14:39:56,637 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 14:39:56,639 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 14:39:56,641 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 14:39:56,642 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 14:39:56,643 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 14:39:56,646 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 14:39:56,646 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 14:39:56,646 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 14:39:56,647 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 14:39:56,648 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 14:39:56,649 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 14:39:56,649 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 14:39:56,651 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 14:39:56,651 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 14:39:56,651 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 14:39:56,652 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 14:39:56,652 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 14:39:56,653 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 14:39:56,653 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 14:39:56,654 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf [2018-10-27 14:39:56,674 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 14:39:56,674 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 14:39:56,675 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 14:39:56,675 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 14:39:56,675 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 14:39:56,676 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 14:39:56,676 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 14:39:56,676 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 14:39:56,676 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 14:39:56,676 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 14:39:56,677 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 14:39:56,677 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 14:39:56,677 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 14:39:56,678 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 14:39:56,678 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 14:39:56,678 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 14:39:56,678 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 14:39:56,678 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 14:39:56,679 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 14:39:56,679 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 14:39:56,679 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 14:39:56,679 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 14:39:56,679 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 14:39:56,680 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 14:39:56,680 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 14:39:56,680 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 14:39:56,680 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 14:39:56,680 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 14:39:56,681 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 14:39:56,681 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 14:39:56,681 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 14:39:56,681 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 14:39:56,681 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 14:39:56,681 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 14:39:56,724 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 14:39:56,737 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 14:39:56,741 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 14:39:56,742 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 14:39:56,742 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 14:39:56,743 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label53_true-unreach-call.c [2018-10-27 14:39:56,800 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7db468797/005c1180555f4f7a84b5a921f8152517/FLAGf0fd07a1a [2018-10-27 14:39:57,519 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 14:39:57,520 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label53_true-unreach-call.c [2018-10-27 14:39:57,546 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7db468797/005c1180555f4f7a84b5a921f8152517/FLAGf0fd07a1a [2018-10-27 14:39:57,564 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7db468797/005c1180555f4f7a84b5a921f8152517 [2018-10-27 14:39:57,576 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 14:39:57,578 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 14:39:57,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 14:39:57,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 14:39:57,584 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 14:39:57,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:39:57" (1/1) ... [2018-10-27 14:39:57,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9fe48fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:39:57, skipping insertion in model container [2018-10-27 14:39:57,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:39:57" (1/1) ... [2018-10-27 14:39:57,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 14:39:57,684 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 14:39:58,554 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 14:39:58,559 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 14:39:58,886 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 14:39:58,909 INFO L193 MainTranslator]: Completed translation [2018-10-27 14:39:58,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:39:58 WrapperNode [2018-10-27 14:39:58,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 14:39:58,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 14:39:58,911 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 14:39:58,911 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 14:39:58,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:39:58" (1/1) ... [2018-10-27 14:39:58,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:39:58" (1/1) ... [2018-10-27 14:39:59,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 14:39:59,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 14:39:59,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 14:39:59,308 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 14:39:59,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:39:58" (1/1) ... [2018-10-27 14:39:59,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:39:58" (1/1) ... [2018-10-27 14:39:59,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:39:58" (1/1) ... [2018-10-27 14:39:59,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:39:58" (1/1) ... [2018-10-27 14:39:59,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:39:58" (1/1) ... [2018-10-27 14:39:59,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:39:58" (1/1) ... [2018-10-27 14:39:59,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:39:58" (1/1) ... [2018-10-27 14:39:59,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 14:39:59,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 14:39:59,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 14:39:59,525 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 14:39:59,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:39:58" (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 [2018-10-27 14:39:59,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 14:39:59,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 14:39:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 14:39:59,602 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 14:39:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 14:39:59,602 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 14:39:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 14:39:59,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 14:39:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 14:39:59,604 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 14:40:06,604 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 14:40:06,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:40:06 BoogieIcfgContainer [2018-10-27 14:40:06,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 14:40:06,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 14:40:06,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 14:40:06,610 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 14:40:06,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 02:39:57" (1/3) ... [2018-10-27 14:40:06,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8b3244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:40:06, skipping insertion in model container [2018-10-27 14:40:06,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:39:58" (2/3) ... [2018-10-27 14:40:06,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8b3244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:40:06, skipping insertion in model container [2018-10-27 14:40:06,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:40:06" (3/3) ... [2018-10-27 14:40:06,614 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label53_true-unreach-call.c [2018-10-27 14:40:06,624 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 14:40:06,634 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 14:40:06,653 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 14:40:06,694 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 14:40:06,695 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 14:40:06,695 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 14:40:06,695 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 14:40:06,695 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 14:40:06,696 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 14:40:06,696 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 14:40:06,696 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 14:40:06,731 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-27 14:40:06,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-10-27 14:40:06,741 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 14:40:06,742 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 14:40:06,744 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 14:40:06,751 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 14:40:06,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1192963812, now seen corresponding path program 1 times [2018-10-27 14:40:06,754 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 14:40:06,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 14:40:06,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 14:40:06,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 14:40:06,814 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 14:40:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 14:40:07,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 14:40:07,322 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 14:40:07,323 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 14:40:07,323 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 14:40:07,330 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 14:40:07,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 14:40:07,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 14:40:07,350 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-10-27 14:40:16,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 14:40:16,605 INFO L93 Difference]: Finished difference Result 1550 states and 2835 transitions. [2018-10-27 14:40:16,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 14:40:16,608 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2018-10-27 14:40:16,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 14:40:16,639 INFO L225 Difference]: With dead ends: 1550 [2018-10-27 14:40:16,639 INFO L226 Difference]: Without dead ends: 1106 [2018-10-27 14:40:16,648 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 [2018-10-27 14:40:16,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2018-10-27 14:40:16,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 762. [2018-10-27 14:40:16,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-10-27 14:40:16,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1263 transitions. [2018-10-27 14:40:16,771 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1263 transitions. Word has length 54 [2018-10-27 14:40:16,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 14:40:16,772 INFO L481 AbstractCegarLoop]: Abstraction has 762 states and 1263 transitions. [2018-10-27 14:40:16,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 14:40:16,772 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1263 transitions. [2018-10-27 14:40:16,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-10-27 14:40:16,781 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 14:40:16,782 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, 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] [2018-10-27 14:40:16,782 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 14:40:16,782 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 14:40:16,783 INFO L82 PathProgramCache]: Analyzing trace with hash -4975238, now seen corresponding path program 1 times [2018-10-27 14:40:16,783 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 14:40:16,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 14:40:16,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 14:40:16,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 14:40:16,787 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 14:40:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 14:40:17,096 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 14:40:17,096 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 14:40:17,096 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 14:40:17,096 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 14:40:17,099 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 14:40:17,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 14:40:17,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 14:40:17,099 INFO L87 Difference]: Start difference. First operand 762 states and 1263 transitions. Second operand 5 states. [2018-10-27 14:40:24,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 14:40:24,911 INFO L93 Difference]: Finished difference Result 2245 states and 3758 transitions. [2018-10-27 14:40:24,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 14:40:24,918 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 127 [2018-10-27 14:40:24,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 14:40:24,932 INFO L225 Difference]: With dead ends: 2245 [2018-10-27 14:40:24,932 INFO L226 Difference]: Without dead ends: 1489 [2018-10-27 14:40:24,937 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 14:40:24,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2018-10-27 14:40:25,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1457. [2018-10-27 14:40:25,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1457 states. [2018-10-27 14:40:25,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 2152 transitions. [2018-10-27 14:40:25,022 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 2152 transitions. Word has length 127 [2018-10-27 14:40:25,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 14:40:25,023 INFO L481 AbstractCegarLoop]: Abstraction has 1457 states and 2152 transitions. [2018-10-27 14:40:25,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 14:40:25,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 2152 transitions. [2018-10-27 14:40:25,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-10-27 14:40:25,032 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 14:40:25,032 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, 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] [2018-10-27 14:40:25,032 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 14:40:25,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 14:40:25,033 INFO L82 PathProgramCache]: Analyzing trace with hash -2136699286, now seen corresponding path program 1 times [2018-10-27 14:40:25,033 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 14:40:25,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 14:40:25,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 14:40:25,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 14:40:25,035 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 14:40:25,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 14:40:25,353 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 14:40:25,354 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 14:40:25,354 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 14:40:25,355 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 136 with the following transitions: [2018-10-27 14:40:25,357 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-27 14:40:25,404 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-10-27 14:40:25,404 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 14:40:25,851 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 14:40:25,853 INFO L272 AbstractInterpreter]: Visited 85 different actions 85 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-27 14:40:25,870 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 14:40:25,870 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 14:40:26,256 INFO L227 lantSequenceWeakener]: Weakened 129 states. On average, predicates are now at 78.53% of their original sizes. [2018-10-27 14:40:26,256 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 14:40:26,333 INFO L415 sIntCurrentIteration]: We unified 134 AI predicates to 134 [2018-10-27 14:40:26,333 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 14:40:26,334 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 14:40:26,334 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2018-10-27 14:40:26,335 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 14:40:26,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 14:40:26,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 14:40:26,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 14:40:26,336 INFO L87 Difference]: Start difference. First operand 1457 states and 2152 transitions. Second operand 6 states. [2018-10-27 14:40:28,219 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-27 14:44:22,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 14:44:22,408 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 14:44:22,415 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 14:44:22,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 02:44:22 BoogieIcfgContainer [2018-10-27 14:44:22,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 14:44:22,416 INFO L168 Benchmark]: Toolchain (without parser) took 264839.19 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.1 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -464.5 MB). Peak memory consumption was 654.3 MB. Max. memory is 7.1 GB. [2018-10-27 14:44:22,418 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-10-27 14:44:22,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1330.72 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-10-27 14:44:22,420 INFO L168 Benchmark]: Boogie Procedure Inliner took 396.00 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 737.1 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -850.7 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2018-10-27 14:44:22,421 INFO L168 Benchmark]: Boogie Preprocessor took 216.69 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2018-10-27 14:44:22,422 INFO L168 Benchmark]: RCFGBuilder took 7080.54 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 319.5 MB). Peak memory consumption was 319.5 MB. Max. memory is 7.1 GB. [2018-10-27 14:44:22,423 INFO L168 Benchmark]: TraceAbstraction took 255809.64 ms. Allocated memory was 2.2 GB in the beginning and 2.6 GB in the end (delta: 381.7 MB). Free memory was 1.8 GB in the beginning and 1.9 GB in the end (delta: -53.0 MB). Peak memory consumption was 328.7 MB. Max. memory is 7.1 GB. [2018-10-27 14:44:22,429 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 1330.72 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 396.00 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 737.1 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -850.7 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 216.69 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7080.54 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 319.5 MB). Peak memory consumption was 319.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 255809.64 ms. Allocated memory was 2.2 GB in the beginning and 2.6 GB in the end (delta: 381.7 MB). Free memory was 1.8 GB in the beginning and 1.9 GB in the end (delta: -53.0 MB). Peak memory consumption was 328.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 148]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 148). Cancelled while BasicCegarLoop was constructing difference of abstraction (1457states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (1537 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 255.7s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 253.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 620 SDtfs, 2540 SDslu, 770 SDs, 0 SdLazy, 4005 SolverSat, 1075 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 240.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 150 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1457occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9971877624862698 AbsIntWeakeningRatio, 0.14925373134328357 AbsIntAvgWeakeningVarsNumRemoved, 18.753731343283583 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 376 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 316 NumberOfCodeBlocks, 316 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 313 ConstructedInterpolants, 0 QuantifiedInterpolants, 121653 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 51/94 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown