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/Problem11_label54_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 01:11:23,522 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 01:11:23,526 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 01:11:23,541 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 01:11:23,542 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 01:11:23,544 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 01:11:23,547 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 01:11:23,549 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 01:11:23,552 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 01:11:23,553 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 01:11:23,561 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 01:11:23,561 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 01:11:23,563 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 01:11:23,568 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 01:11:23,569 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 01:11:23,570 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 01:11:23,570 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 01:11:23,576 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 01:11:23,578 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 01:11:23,579 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 01:11:23,583 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 01:11:23,584 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 01:11:23,587 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 01:11:23,587 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 01:11:23,587 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 01:11:23,590 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 01:11:23,591 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 01:11:23,592 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 01:11:23,594 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 01:11:23,595 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 01:11:23,596 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 01:11:23,597 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 01:11:23,602 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 01:11:23,628 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 01:11:23,628 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 01:11:23,629 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 01:11:23,629 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 01:11:23,630 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 01:11:23,630 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 01:11:23,630 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 01:11:23,630 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 01:11:23,631 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 01:11:23,631 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 01:11:23,631 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 01:11:23,631 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 01:11:23,632 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 01:11:23,632 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 01:11:23,632 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 01:11:23,633 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 01:11:23,633 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 01:11:23,633 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 01:11:23,633 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 01:11:23,633 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 01:11:23,634 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 01:11:23,634 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 01:11:23,634 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 01:11:23,634 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 01:11:23,635 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 01:11:23,635 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 01:11:23,635 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 01:11:23,635 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 01:11:23,635 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 01:11:23,636 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 01:11:23,636 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 01:11:23,636 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 01:11:23,636 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 01:11:23,636 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 01:11:23,699 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 01:11:23,712 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 01:11:23,716 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 01:11:23,718 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 01:11:23,719 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 01:11:23,720 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label54_true-unreach-call.c [2018-10-24 01:11:23,784 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/949ba199b/b098007d304e4880a4ed80bbb33c7737/FLAG05c8f4db5 [2018-10-24 01:11:24,429 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 01:11:24,432 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label54_true-unreach-call.c [2018-10-24 01:11:24,459 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/949ba199b/b098007d304e4880a4ed80bbb33c7737/FLAG05c8f4db5 [2018-10-24 01:11:24,476 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/949ba199b/b098007d304e4880a4ed80bbb33c7737 [2018-10-24 01:11:24,489 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 01:11:24,490 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 01:11:24,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 01:11:24,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 01:11:24,495 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 01:11:24,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:11:24" (1/1) ... [2018-10-24 01:11:24,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d74a1a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:11:24, skipping insertion in model container [2018-10-24 01:11:24,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:11:24" (1/1) ... [2018-10-24 01:11:24,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 01:11:24,597 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 01:11:25,252 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 01:11:25,257 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 01:11:25,423 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 01:11:25,441 INFO L193 MainTranslator]: Completed translation [2018-10-24 01:11:25,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:11:25 WrapperNode [2018-10-24 01:11:25,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 01:11:25,443 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 01:11:25,443 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 01:11:25,443 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 01:11:25,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:11:25" (1/1) ... [2018-10-24 01:11:25,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:11:25" (1/1) ... [2018-10-24 01:11:25,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 01:11:25,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 01:11:25,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 01:11:25,709 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 01:11:25,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:11:25" (1/1) ... [2018-10-24 01:11:25,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:11:25" (1/1) ... [2018-10-24 01:11:25,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:11:25" (1/1) ... [2018-10-24 01:11:25,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:11:25" (1/1) ... [2018-10-24 01:11:25,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:11:25" (1/1) ... [2018-10-24 01:11:25,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:11:25" (1/1) ... [2018-10-24 01:11:25,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:11:25" (1/1) ... [2018-10-24 01:11:25,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 01:11:25,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 01:11:25,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 01:11:25,819 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 01:11:25,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:11:25" (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 01:11:25,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 01:11:25,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 01:11:25,891 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 01:11:25,892 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 01:11:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 01:11:25,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 01:11:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 01:11:25,894 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 01:11:30,231 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 01:11:30,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:11:30 BoogieIcfgContainer [2018-10-24 01:11:30,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 01:11:30,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 01:11:30,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 01:11:30,237 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 01:11:30,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:11:24" (1/3) ... [2018-10-24 01:11:30,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42f7f010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:11:30, skipping insertion in model container [2018-10-24 01:11:30,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:11:25" (2/3) ... [2018-10-24 01:11:30,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42f7f010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:11:30, skipping insertion in model container [2018-10-24 01:11:30,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:11:30" (3/3) ... [2018-10-24 01:11:30,241 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label54_true-unreach-call.c [2018-10-24 01:11:30,251 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 01:11:30,261 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 01:11:30,279 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 01:11:30,318 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 01:11:30,319 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 01:11:30,320 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 01:11:30,320 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 01:11:30,320 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 01:11:30,320 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 01:11:30,320 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 01:11:30,321 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 01:11:30,354 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-24 01:11:30,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-10-24 01:11:30,363 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:11:30,364 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] [2018-10-24 01:11:30,367 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:11:30,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:11:30,373 INFO L82 PathProgramCache]: Analyzing trace with hash -639357604, now seen corresponding path program 1 times [2018-10-24 01:11:30,376 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:11:30,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:11:30,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:11:30,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:11:30,428 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:11:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:11:30,864 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 01:11:30,866 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:11:30,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 01:11:30,867 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:11:30,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 01:11:30,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 01:11:30,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 01:11:30,899 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-10-24 01:11:34,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:11:34,747 INFO L93 Difference]: Finished difference Result 998 states and 1780 transitions. [2018-10-24 01:11:34,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 01:11:34,750 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2018-10-24 01:11:34,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:11:34,775 INFO L225 Difference]: With dead ends: 998 [2018-10-24 01:11:34,776 INFO L226 Difference]: Without dead ends: 699 [2018-10-24 01:11:34,783 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 [2018-10-24 01:11:34,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2018-10-24 01:11:34,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 693. [2018-10-24 01:11:34,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2018-10-24 01:11:34,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1109 transitions. [2018-10-24 01:11:34,891 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1109 transitions. Word has length 44 [2018-10-24 01:11:34,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:11:34,892 INFO L481 AbstractCegarLoop]: Abstraction has 693 states and 1109 transitions. [2018-10-24 01:11:34,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 01:11:34,893 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1109 transitions. [2018-10-24 01:11:34,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-10-24 01:11:34,900 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:11:34,900 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:34,901 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:11:34,901 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:11:34,901 INFO L82 PathProgramCache]: Analyzing trace with hash 731087552, now seen corresponding path program 1 times [2018-10-24 01:11:34,901 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:11:34,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:11:34,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:11:34,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:11:34,903 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:11:35,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:11:35,435 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:11:35,436 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:11:35,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-24 01:11:35,436 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:11:35,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 01:11:35,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 01:11:35,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 01:11:35,438 INFO L87 Difference]: Start difference. First operand 693 states and 1109 transitions. Second operand 7 states. [2018-10-24 01:11:42,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:11:42,555 INFO L93 Difference]: Finished difference Result 2550 states and 4242 transitions. [2018-10-24 01:11:42,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-24 01:11:42,558 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2018-10-24 01:11:42,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:11:42,573 INFO L225 Difference]: With dead ends: 2550 [2018-10-24 01:11:42,573 INFO L226 Difference]: Without dead ends: 1863 [2018-10-24 01:11:42,580 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-10-24 01:11:42,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1863 states. [2018-10-24 01:11:42,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1863 to 1435. [2018-10-24 01:11:42,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1435 states. [2018-10-24 01:11:42,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 2153 transitions. [2018-10-24 01:11:42,674 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 2153 transitions. Word has length 118 [2018-10-24 01:11:42,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:11:42,674 INFO L481 AbstractCegarLoop]: Abstraction has 1435 states and 2153 transitions. [2018-10-24 01:11:42,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 01:11:42,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 2153 transitions. [2018-10-24 01:11:42,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-10-24 01:11:42,682 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:11:42,682 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 01:11:42,683 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:11:42,683 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:11:42,683 INFO L82 PathProgramCache]: Analyzing trace with hash 162053839, now seen corresponding path program 1 times [2018-10-24 01:11:42,683 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:11:42,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:11:42,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:11:42,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:11:42,685 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:11:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:11:43,007 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 74 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 01:11:43,008 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:11:43,008 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 01:11:43,009 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 192 with the following transitions: [2018-10-24 01:11:43,011 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [510], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 01:11:43,075 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 01:11:43,076 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 01:11:44,911 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 01:11:45,888 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 01:11:45,890 INFO L272 AbstractInterpreter]: Visited 79 different actions 79 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-10-24 01:11:45,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:11:45,922 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 01:11:48,486 INFO L232 lantSequenceWeakener]: Weakened 183 states. On average, predicates are now at 73.61% of their original sizes. [2018-10-24 01:11:48,487 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 01:11:49,006 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 01:11:49,007 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 01:11:49,007 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 01:11:49,007 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:11:49,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 01:11:49,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 01:11:49,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 01:11:49,009 INFO L87 Difference]: Start difference. First operand 1435 states and 2153 transitions. Second operand 7 states. [2018-10-24 01:12:27,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:12:27,882 INFO L93 Difference]: Finished difference Result 3056 states and 4512 transitions. [2018-10-24 01:12:27,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 01:12:27,882 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 191 [2018-10-24 01:12:27,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:12:27,890 INFO L225 Difference]: With dead ends: 3056 [2018-10-24 01:12:27,891 INFO L226 Difference]: Without dead ends: 1627 [2018-10-24 01:12:27,894 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 191 GetRequests, 185 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 01:12:27,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2018-10-24 01:12:27,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1625. [2018-10-24 01:12:27,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1625 states. [2018-10-24 01:12:27,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1625 states to 1625 states and 2352 transitions. [2018-10-24 01:12:27,944 INFO L78 Accepts]: Start accepts. Automaton has 1625 states and 2352 transitions. Word has length 191 [2018-10-24 01:12:27,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:12:27,944 INFO L481 AbstractCegarLoop]: Abstraction has 1625 states and 2352 transitions. [2018-10-24 01:12:27,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 01:12:27,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1625 states and 2352 transitions. [2018-10-24 01:12:27,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-10-24 01:12:27,948 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:12:27,949 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:27,949 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:12:27,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:12:27,950 INFO L82 PathProgramCache]: Analyzing trace with hash -875818686, now seen corresponding path program 1 times [2018-10-24 01:12:27,950 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:12:27,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:12:27,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:12:27,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:12:27,951 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:12:27,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:12:28,304 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-24 01:12:28,304 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:12:28,304 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 01:12:28,305 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 193 with the following transitions: [2018-10-24 01:12:28,305 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [777], [781], [785], [789], [793], [797], [808], [812], [816], [820], [824], [828], [832], [843], [847], [851], [862], [866], [869], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 01:12:28,314 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 01:12:28,314 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 01:12:32,344 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 01:12:51,327 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 01:12:51,327 INFO L272 AbstractInterpreter]: Visited 155 different actions 452 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-24 01:12:51,347 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:12:51,347 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 01:12:55,202 INFO L232 lantSequenceWeakener]: Weakened 35 states. On average, predicates are now at 77.33% of their original sizes. [2018-10-24 01:12:55,202 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 01:14:09,692 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 01:14:09,693 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 01:14:09,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [5] total 20 [2018-10-24 01:14:09,693 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:14:09,694 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-24 01:14:09,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-24 01:14:09,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2018-10-24 01:14:09,695 INFO L87 Difference]: Start difference. First operand 1625 states and 2352 transitions. Second operand 17 states. Received shutdown request... [2018-10-24 01:15:31,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-24 01:15:31,108 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 01:15:31,112 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 01:15:31,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 01:15:31 BoogieIcfgContainer [2018-10-24 01:15:31,112 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 01:15:31,113 INFO L168 Benchmark]: Toolchain (without parser) took 246623.98 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -623.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-24 01:15:31,115 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 01:15:31,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 951.22 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-10-24 01:15:31,116 INFO L168 Benchmark]: Boogie Procedure Inliner took 265.06 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 753.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -834.8 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2018-10-24 01:15:31,117 INFO L168 Benchmark]: Boogie Preprocessor took 109.83 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 01:15:31,118 INFO L168 Benchmark]: RCFGBuilder took 4413.81 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 186.7 MB). Peak memory consumption was 186.7 MB. Max. memory is 7.1 GB. [2018-10-24 01:15:31,118 INFO L168 Benchmark]: TraceAbstraction took 240879.03 ms. Allocated memory was 2.3 GB in the beginning and 3.6 GB in the end (delta: 1.4 GB). Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: -28.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-24 01:15:31,123 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 951.22 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 265.06 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 753.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -834.8 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.83 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4413.81 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 186.7 MB). Peak memory consumption was 186.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 240879.03 ms. Allocated memory was 2.3 GB in the beginning and 3.6 GB in the end (delta: 1.4 GB). Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: -28.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 117]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 117). Cancelled while BasicCegarLoop was constructing difference of abstraction (1625states) and FLOYD_HOARE automaton (currently 12 states, 17 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 23 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 240.8s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 131.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 616 SDtfs, 2737 SDslu, 690 SDs, 0 SdLazy, 4661 SolverSat, 851 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 55.4s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 408 GetRequests, 321 SyntacticMatches, 47 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 77.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1625occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 25.9s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9952818397700289 AbsIntWeakeningRatio, 0.13123359580052493 AbsIntAvgWeakeningVarsNumRemoved, 661.4225721784777 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 436 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 545 NumberOfCodeBlocks, 545 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 541 ConstructedInterpolants, 0 QuantifiedInterpolants, 402379 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 120/221 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown