java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-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/Problem10_label15_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 23:53:24,532 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 23:53:24,534 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 23:53:24,546 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 23:53:24,546 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 23:53:24,547 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 23:53:24,548 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 23:53:24,550 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 23:53:24,552 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 23:53:24,553 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 23:53:24,554 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 23:53:24,556 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 23:53:24,557 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 23:53:24,560 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 23:53:24,564 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 23:53:24,565 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 23:53:24,566 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 23:53:24,572 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 23:53:24,574 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 23:53:24,578 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 23:53:24,579 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 23:53:24,582 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 23:53:24,584 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 23:53:24,585 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 23:53:24,585 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 23:53:24,586 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 23:53:24,589 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 23:53:24,589 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 23:53:24,590 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 23:53:24,594 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 23:53:24,594 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 23:53:24,595 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-06 23:53:24,595 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-06 23:53:24,595 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-06 23:53:24,597 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-06 23:53:24,597 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-06 23:53:24,597 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-06 23:53:24,624 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 23:53:24,625 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 23:53:24,625 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 23:53:24,626 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-06 23:53:24,626 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-06 23:53:24,627 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-06 23:53:24,627 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-06 23:53:24,627 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-06 23:53:24,627 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-06 23:53:24,627 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-06 23:53:24,628 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-06 23:53:24,628 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-06 23:53:24,628 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 23:53:24,630 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 23:53:24,630 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 23:53:24,630 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 23:53:24,630 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 23:53:24,630 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 23:53:24,631 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 23:53:24,631 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 23:53:24,631 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 23:53:24,631 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 23:53:24,632 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 23:53:24,633 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 23:53:24,633 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 23:53:24,633 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 23:53:24,634 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 23:53:24,634 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 23:53:24,634 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-06 23:53:24,634 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 23:53:24,634 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 23:53:24,634 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 23:53:24,635 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 23:53:24,635 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-06 23:53:24,698 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 23:53:24,710 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 23:53:24,714 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 23:53:24,715 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 23:53:24,715 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 23:53:24,716 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label15_false-unreach-call.c [2018-11-06 23:53:24,773 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2a564bdb/f2a67550832947219c851ff8419433e2/FLAG88c2413c0 [2018-11-06 23:53:25,269 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 23:53:25,270 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label15_false-unreach-call.c [2018-11-06 23:53:25,281 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2a564bdb/f2a67550832947219c851ff8419433e2/FLAG88c2413c0 [2018-11-06 23:53:25,297 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2a564bdb/f2a67550832947219c851ff8419433e2 [2018-11-06 23:53:25,308 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 23:53:25,309 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 23:53:25,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 23:53:25,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 23:53:25,314 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 23:53:25,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:53:25" (1/1) ... [2018-11-06 23:53:25,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f322134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:25, skipping insertion in model container [2018-11-06 23:53:25,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:53:25" (1/1) ... [2018-11-06 23:53:25,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 23:53:25,380 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 23:53:25,931 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 23:53:25,938 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 23:53:26,083 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 23:53:26,105 INFO L193 MainTranslator]: Completed translation [2018-11-06 23:53:26,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:26 WrapperNode [2018-11-06 23:53:26,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 23:53:26,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 23:53:26,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 23:53:26,107 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 23:53:26,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:26" (1/1) ... [2018-11-06 23:53:26,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:26" (1/1) ... [2018-11-06 23:53:26,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 23:53:26,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 23:53:26,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 23:53:26,276 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 23:53:26,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:26" (1/1) ... [2018-11-06 23:53:26,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:26" (1/1) ... [2018-11-06 23:53:26,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:26" (1/1) ... [2018-11-06 23:53:26,303 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:26" (1/1) ... [2018-11-06 23:53:26,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:26" (1/1) ... [2018-11-06 23:53:26,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:26" (1/1) ... [2018-11-06 23:53:26,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:26" (1/1) ... [2018-11-06 23:53:26,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 23:53:26,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 23:53:26,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 23:53:26,387 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 23:53:26,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 23:53:26,454 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 23:53:26,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-06 23:53:26,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-06 23:53:26,455 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-06 23:53:26,455 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-06 23:53:26,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 23:53:26,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 23:53:26,456 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-06 23:53:26,456 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-06 23:53:29,441 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 23:53:29,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:53:29 BoogieIcfgContainer [2018-11-06 23:53:29,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 23:53:29,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 23:53:29,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 23:53:29,447 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 23:53:29,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:53:25" (1/3) ... [2018-11-06 23:53:29,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2237617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:53:29, skipping insertion in model container [2018-11-06 23:53:29,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:26" (2/3) ... [2018-11-06 23:53:29,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2237617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:53:29, skipping insertion in model container [2018-11-06 23:53:29,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:53:29" (3/3) ... [2018-11-06 23:53:29,451 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label15_false-unreach-call.c [2018-11-06 23:53:29,462 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 23:53:29,470 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 23:53:29,488 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 23:53:29,525 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 23:53:29,526 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 23:53:29,526 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 23:53:29,526 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 23:53:29,526 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 23:53:29,527 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 23:53:29,528 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 23:53:29,528 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 23:53:29,564 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-11-06 23:53:29,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-06 23:53:29,574 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:53:29,576 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 23:53:29,578 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:53:29,587 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:53:29,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1719497273, now seen corresponding path program 1 times [2018-11-06 23:53:29,590 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:53:29,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:53:29,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:53:29,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:53:29,648 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:53:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:53:30,019 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-06 23:53:30,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:53:30,099 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 23:53:30,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 23:53:30,100 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:53:30,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 23:53:30,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 23:53:30,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 23:53:30,124 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-11-06 23:53:31,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 23:53:31,692 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-11-06 23:53:31,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 23:53:31,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-11-06 23:53:31,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 23:53:31,712 INFO L225 Difference]: With dead ends: 574 [2018-11-06 23:53:31,713 INFO L226 Difference]: Without dead ends: 356 [2018-11-06 23:53:31,720 INFO L604 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 [2018-11-06 23:53:31,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-11-06 23:53:31,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-11-06 23:53:31,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-11-06 23:53:31,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 607 transitions. [2018-11-06 23:53:31,787 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 607 transitions. Word has length 17 [2018-11-06 23:53:31,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 23:53:31,788 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 607 transitions. [2018-11-06 23:53:31,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 23:53:31,788 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 607 transitions. [2018-11-06 23:53:31,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-11-06 23:53:31,794 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:53:31,794 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-06 23:53:31,795 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:53:31,795 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:53:31,795 INFO L82 PathProgramCache]: Analyzing trace with hash 115902964, now seen corresponding path program 1 times [2018-11-06 23:53:31,796 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:53:31,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:53:31,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:53:31,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:53:31,797 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:53:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:53:32,189 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-06 23:53:32,189 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 23:53:32,189 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-06 23:53:32,190 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 106 with the following transitions: [2018-11-06 23:53:32,193 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [37], [39], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [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], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-06 23:53:32,268 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-06 23:53:32,268 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-06 23:53:35,118 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-06 23:53:35,119 INFO L272 AbstractInterpreter]: Visited 92 different actions 92 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-06 23:53:35,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:53:35,130 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-06 23:53:36,920 INFO L227 lantSequenceWeakener]: Weakened 90 states. On average, predicates are now at 73.25% of their original sizes. [2018-11-06 23:53:36,920 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-06 23:53:40,026 INFO L415 sIntCurrentIteration]: We unified 104 AI predicates to 104 [2018-11-06 23:53:40,027 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-06 23:53:40,028 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 23:53:40,028 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2018-11-06 23:53:40,028 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:53:40,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-06 23:53:40,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-06 23:53:40,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-06 23:53:40,031 INFO L87 Difference]: Start difference. First operand 356 states and 607 transitions. Second operand 10 states. [2018-11-06 23:53:55,311 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-06 23:54:28,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 23:54:28,721 INFO L93 Difference]: Finished difference Result 855 states and 1478 transitions. [2018-11-06 23:54:28,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-06 23:54:28,722 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 105 [2018-11-06 23:54:28,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 23:54:28,726 INFO L225 Difference]: With dead ends: 855 [2018-11-06 23:54:28,727 INFO L226 Difference]: Without dead ends: 505 [2018-11-06 23:54:28,733 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 108 GetRequests, 79 SyntacticMatches, 17 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-11-06 23:54:28,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-11-06 23:54:28,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 500. [2018-11-06 23:54:28,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 500 states. [2018-11-06 23:54:28,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 757 transitions. [2018-11-06 23:54:28,803 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 757 transitions. Word has length 105 [2018-11-06 23:54:28,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 23:54:28,804 INFO L480 AbstractCegarLoop]: Abstraction has 500 states and 757 transitions. [2018-11-06 23:54:28,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-06 23:54:28,804 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 757 transitions. [2018-11-06 23:54:28,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-11-06 23:54:28,809 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:54:28,809 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 23:54:28,809 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:54:28,810 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:54:28,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1510191846, now seen corresponding path program 1 times [2018-11-06 23:54:28,810 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:54:28,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:54:28,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:54:28,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:54:28,812 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:54:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:54:29,121 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-11-06 23:54:29,121 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 23:54:29,121 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-06 23:54:29,122 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 177 with the following transitions: [2018-11-06 23:54:29,122 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [37], [39], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [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], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-06 23:54:29,128 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-06 23:54:29,128 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-06 23:54:30,292 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-06 23:54:35,142 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-06 23:54:35,143 INFO L272 AbstractInterpreter]: Visited 96 different actions 276 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-06 23:54:35,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:54:35,153 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-06 23:54:36,483 INFO L227 lantSequenceWeakener]: Weakened 34 states. On average, predicates are now at 74.47% of their original sizes. [2018-11-06 23:54:36,483 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-06 23:54:46,313 INFO L415 sIntCurrentIteration]: We unified 175 AI predicates to 175 [2018-11-06 23:54:46,313 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-06 23:54:46,313 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 23:54:46,314 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [4] total 22 [2018-11-06 23:54:46,314 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:54:46,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-06 23:54:46,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-06 23:54:46,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2018-11-06 23:54:46,316 INFO L87 Difference]: Start difference. First operand 500 states and 757 transitions. Second operand 20 states. [2018-11-06 23:56:36,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 23:56:36,851 INFO L93 Difference]: Finished difference Result 1312 states and 2192 transitions. [2018-11-06 23:56:36,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-06 23:56:36,852 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 176 [2018-11-06 23:56:36,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 23:56:36,860 INFO L225 Difference]: With dead ends: 1312 [2018-11-06 23:56:36,860 INFO L226 Difference]: Without dead ends: 962 [2018-11-06 23:56:36,863 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 186 GetRequests, 146 SyntacticMatches, 11 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=178, Invalid=752, Unknown=0, NotChecked=0, Total=930 [2018-11-06 23:56:36,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2018-11-06 23:56:36,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 876. [2018-11-06 23:56:36,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2018-11-06 23:56:36,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1173 transitions. [2018-11-06 23:56:36,948 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1173 transitions. Word has length 176 [2018-11-06 23:56:36,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 23:56:36,949 INFO L480 AbstractCegarLoop]: Abstraction has 876 states and 1173 transitions. [2018-11-06 23:56:36,949 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-06 23:56:36,950 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1173 transitions. [2018-11-06 23:56:36,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-11-06 23:56:36,953 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:56:36,954 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 23:56:36,954 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:56:36,954 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:56:36,954 INFO L82 PathProgramCache]: Analyzing trace with hash 640091935, now seen corresponding path program 1 times [2018-11-06 23:56:36,955 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:56:36,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:56:36,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:56:36,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:56:36,956 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:56:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:56:37,241 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-11-06 23:56:37,242 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 23:56:37,242 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-06 23:56:37,242 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 186 with the following transitions: [2018-11-06 23:56:37,243 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [37], [39], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [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], [534], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-06 23:56:37,247 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-06 23:56:37,247 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-06 23:56:38,070 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-06 23:57:08,695 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-06 23:57:08,696 INFO L272 AbstractInterpreter]: Visited 96 different actions 561 times. Merged at 7 different actions 40 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-06 23:57:08,704 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:57:08,704 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-06 23:57:11,542 INFO L227 lantSequenceWeakener]: Weakened 8 states. On average, predicates are now at 78.81% of their original sizes. [2018-11-06 23:57:11,542 INFO L413 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-11-06 23:57:29,562 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-06 23:57:29,566 WARN L205 ceAbstractionStarter]: Timeout [2018-11-06 23:57:29,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:57:29 BoogieIcfgContainer [2018-11-06 23:57:29,567 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 23:57:29,567 INFO L168 Benchmark]: Toolchain (without parser) took 244259.09 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-11-06 23:57:29,569 INFO L168 Benchmark]: CDTParser took 0.18 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. [2018-11-06 23:57:29,569 INFO L168 Benchmark]: CACSL2BoogieTranslator took 795.89 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-11-06 23:57:29,571 INFO L168 Benchmark]: Boogie Procedure Inliner took 168.48 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -811.4 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2018-11-06 23:57:29,572 INFO L168 Benchmark]: Boogie Preprocessor took 110.72 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 23:57:29,573 INFO L168 Benchmark]: RCFGBuilder took 3055.94 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 120.8 MB). Peak memory consumption was 120.8 MB. Max. memory is 7.1 GB. [2018-11-06 23:57:29,575 INFO L168 Benchmark]: TraceAbstraction took 240123.18 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.0 GB in the end (delta: -958.4 MB). Peak memory consumption was 974.7 MB. Max. memory is 7.1 GB. [2018-11-06 23:57:29,581 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 795.89 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 168.48 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -811.4 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.72 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3055.94 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 120.8 MB). Peak memory consumption was 120.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 240123.18 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.0 GB in the end (delta: -958.4 MB). Peak memory consumption was 974.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 34]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 34). Cancelled while BasicCegarLoop was analyzing trace of length 186 with TraceHistMax 3,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 14 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 240.0s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 160.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 515 SDtfs, 3352 SDslu, 182 SDs, 0 SdLazy, 1856 SolverSat, 684 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 88.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 299 GetRequests, 227 SyntacticMatches, 30 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 16.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=876occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 40.4s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9930940307384102 AbsIntWeakeningRatio, 0.15550755939524838 AbsIntAvgWeakeningVarsNumRemoved, 474.84449244060477 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 91 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 298 NumberOfCodeBlocks, 298 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 295 ConstructedInterpolants, 0 QuantifiedInterpolants, 130311 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 83/101 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown