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_label56_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 02:51:13,489 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 02:51:13,491 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 02:51:13,504 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 02:51:13,504 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 02:51:13,506 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 02:51:13,507 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 02:51:13,509 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 02:51:13,510 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 02:51:13,511 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 02:51:13,512 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 02:51:13,513 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 02:51:13,513 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 02:51:13,514 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 02:51:13,516 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 02:51:13,516 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 02:51:13,517 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 02:51:13,519 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 02:51:13,521 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 02:51:13,523 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 02:51:13,524 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 02:51:13,525 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 02:51:13,528 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 02:51:13,528 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 02:51:13,528 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 02:51:13,529 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 02:51:13,530 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 02:51:13,533 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 02:51:13,534 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 02:51:13,537 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 02:51:13,537 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 02:51:13,538 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 02:51:13,538 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 02:51:13,538 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 02:51:13,539 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 02:51:13,543 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 02:51:13,544 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 [2018-11-07 02:51:13,577 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 02:51:13,578 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 02:51:13,579 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 02:51:13,579 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 02:51:13,579 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 02:51:13,579 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 02:51:13,579 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 02:51:13,580 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 02:51:13,580 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 02:51:13,580 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 02:51:13,581 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 02:51:13,581 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 02:51:13,582 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 02:51:13,582 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 02:51:13,582 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 02:51:13,582 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 02:51:13,583 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 02:51:13,584 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 02:51:13,584 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 02:51:13,584 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 02:51:13,584 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 02:51:13,584 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 02:51:13,585 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 02:51:13,585 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 02:51:13,585 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 02:51:13,585 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 02:51:13,586 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 02:51:13,586 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 02:51:13,586 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 02:51:13,587 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 02:51:13,587 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 02:51:13,587 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 02:51:13,587 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 02:51:13,587 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 02:51:13,641 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 02:51:13,661 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 02:51:13,666 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 02:51:13,668 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 02:51:13,668 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 02:51:13,669 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label56_true-unreach-call.c [2018-11-07 02:51:13,741 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bd4472cc/6bbfd2578df9460aa276b47b51a7edfa/FLAG172bccdcf [2018-11-07 02:51:14,343 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 02:51:14,344 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label56_true-unreach-call.c [2018-11-07 02:51:14,370 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bd4472cc/6bbfd2578df9460aa276b47b51a7edfa/FLAG172bccdcf [2018-11-07 02:51:14,389 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bd4472cc/6bbfd2578df9460aa276b47b51a7edfa [2018-11-07 02:51:14,401 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 02:51:14,402 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 02:51:14,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 02:51:14,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 02:51:14,407 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 02:51:14,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:51:14" (1/1) ... [2018-11-07 02:51:14,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@be785a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:51:14, skipping insertion in model container [2018-11-07 02:51:14,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:51:14" (1/1) ... [2018-11-07 02:51:14,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 02:51:14,487 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 02:51:14,954 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 02:51:14,958 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 02:51:15,115 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 02:51:15,135 INFO L193 MainTranslator]: Completed translation [2018-11-07 02:51:15,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:51:15 WrapperNode [2018-11-07 02:51:15,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 02:51:15,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 02:51:15,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 02:51:15,138 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 02:51:15,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:51:15" (1/1) ... [2018-11-07 02:51:15,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:51:15" (1/1) ... [2018-11-07 02:51:15,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 02:51:15,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 02:51:15,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 02:51:15,282 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 02:51:15,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:51:15" (1/1) ... [2018-11-07 02:51:15,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:51:15" (1/1) ... [2018-11-07 02:51:15,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:51:15" (1/1) ... [2018-11-07 02:51:15,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:51:15" (1/1) ... [2018-11-07 02:51:15,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:51:15" (1/1) ... [2018-11-07 02:51:15,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:51:15" (1/1) ... [2018-11-07 02:51:15,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:51:15" (1/1) ... [2018-11-07 02:51:15,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 02:51:15,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 02:51:15,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 02:51:15,377 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 02:51:15,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:51:15" (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 [2018-11-07 02:51:15,440 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 02:51:15,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 02:51:15,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 02:51:15,441 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 02:51:15,441 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 02:51:15,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 02:51:15,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 02:51:15,442 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 02:51:15,442 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 02:51:18,528 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 02:51:18,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:51:18 BoogieIcfgContainer [2018-11-07 02:51:18,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 02:51:18,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 02:51:18,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 02:51:18,538 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 02:51:18,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:51:14" (1/3) ... [2018-11-07 02:51:18,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cae0bce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:51:18, skipping insertion in model container [2018-11-07 02:51:18,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:51:15" (2/3) ... [2018-11-07 02:51:18,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cae0bce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:51:18, skipping insertion in model container [2018-11-07 02:51:18,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:51:18" (3/3) ... [2018-11-07 02:51:18,547 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label56_true-unreach-call.c [2018-11-07 02:51:18,558 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 02:51:18,569 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 02:51:18,588 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 02:51:18,626 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 02:51:18,627 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 02:51:18,627 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 02:51:18,627 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 02:51:18,627 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 02:51:18,627 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 02:51:18,628 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 02:51:18,628 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 02:51:18,658 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-11-07 02:51:18,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-07 02:51:18,666 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:51:18,668 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] [2018-11-07 02:51:18,670 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:51:18,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:51:18,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1189398212, now seen corresponding path program 1 times [2018-11-07 02:51:18,680 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:51:18,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:51:18,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:51:18,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:51:18,739 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:51:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:51:19,128 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 02:51:19,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:51:19,228 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 02:51:19,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 02:51:19,230 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:51:19,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 02:51:19,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 02:51:19,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 02:51:19,262 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-11-07 02:51:20,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:51:20,871 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-11-07 02:51:20,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 02:51:20,874 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-11-07 02:51:20,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:51:20,891 INFO L225 Difference]: With dead ends: 574 [2018-11-07 02:51:20,891 INFO L226 Difference]: Without dead ends: 356 [2018-11-07 02:51:20,898 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 [2018-11-07 02:51:20,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-11-07 02:51:20,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-11-07 02:51:20,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-11-07 02:51:20,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 607 transitions. [2018-11-07 02:51:20,969 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 607 transitions. Word has length 30 [2018-11-07 02:51:20,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:51:20,970 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 607 transitions. [2018-11-07 02:51:20,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 02:51:20,971 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 607 transitions. [2018-11-07 02:51:20,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-11-07 02:51:20,977 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:51:20,978 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 02:51:20,978 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:51:20,979 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:51:20,979 INFO L82 PathProgramCache]: Analyzing trace with hash 536301288, now seen corresponding path program 1 times [2018-11-07 02:51:20,979 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:51:20,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:51:20,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:51:20,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:51:20,981 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:51:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:51:21,310 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-07 02:51:21,311 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 02:51:21,311 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 02:51:21,313 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 119 with the following transitions: [2018-11-07 02:51:21,315 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [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] [2018-11-07 02:51:21,388 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 02:51:21,388 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 02:51:24,248 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 02:51:24,250 INFO L272 AbstractInterpreter]: Visited 92 different actions 92 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 02:51:24,264 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:51:24,264 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 02:51:26,341 INFO L227 lantSequenceWeakener]: Weakened 103 states. On average, predicates are now at 73.76% of their original sizes. [2018-11-07 02:51:26,342 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 02:51:29,868 INFO L415 sIntCurrentIteration]: We unified 117 AI predicates to 117 [2018-11-07 02:51:29,869 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 02:51:29,870 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 02:51:29,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2018-11-07 02:51:29,870 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:51:29,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 02:51:29,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 02:51:29,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-07 02:51:29,873 INFO L87 Difference]: Start difference. First operand 356 states and 607 transitions. Second operand 10 states. [2018-11-07 02:51:41,144 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 02:52:27,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:52:27,012 INFO L93 Difference]: Finished difference Result 855 states and 1478 transitions. [2018-11-07 02:52:27,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 02:52:27,012 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 118 [2018-11-07 02:52:27,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:52:27,017 INFO L225 Difference]: With dead ends: 855 [2018-11-07 02:52:27,017 INFO L226 Difference]: Without dead ends: 505 [2018-11-07 02:52:27,020 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 121 GetRequests, 92 SyntacticMatches, 17 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-11-07 02:52:27,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-11-07 02:52:27,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 500. [2018-11-07 02:52:27,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 500 states. [2018-11-07 02:52:27,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 757 transitions. [2018-11-07 02:52:27,080 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 757 transitions. Word has length 118 [2018-11-07 02:52:27,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:52:27,081 INFO L480 AbstractCegarLoop]: Abstraction has 500 states and 757 transitions. [2018-11-07 02:52:27,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 02:52:27,081 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 757 transitions. [2018-11-07 02:52:27,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-11-07 02:52:27,086 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:52:27,087 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, 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] [2018-11-07 02:52:27,087 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:52:27,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:52:27,087 INFO L82 PathProgramCache]: Analyzing trace with hash -524938665, now seen corresponding path program 1 times [2018-11-07 02:52:27,088 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:52:27,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:52:27,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:52:27,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:52:27,089 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:52:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:52:27,388 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-11-07 02:52:27,388 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 02:52:27,388 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 02:52:27,389 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 190 with the following transitions: [2018-11-07 02:52:27,389 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [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] [2018-11-07 02:52:27,398 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 02:52:27,398 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 02:52:28,173 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 02:52:34,776 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 02:52:34,777 INFO L272 AbstractInterpreter]: Visited 96 different actions 365 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 02:52:34,787 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:52:34,787 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 02:52:37,150 INFO L227 lantSequenceWeakener]: Weakened 31 states. On average, predicates are now at 76.2% of their original sizes. [2018-11-07 02:52:37,150 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 02:52:42,882 INFO L415 sIntCurrentIteration]: We unified 188 AI predicates to 188 [2018-11-07 02:52:42,883 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 02:52:42,883 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 02:52:42,883 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [4] total 18 [2018-11-07 02:52:42,883 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:52:42,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-07 02:52:42,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-07 02:52:42,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2018-11-07 02:52:42,885 INFO L87 Difference]: Start difference. First operand 500 states and 757 transitions. Second operand 16 states. [2018-11-07 02:54:39,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:54:39,484 INFO L93 Difference]: Finished difference Result 1231 states and 2045 transitions. [2018-11-07 02:54:39,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-07 02:54:39,484 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 189 [2018-11-07 02:54:39,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:54:39,490 INFO L225 Difference]: With dead ends: 1231 [2018-11-07 02:54:39,490 INFO L226 Difference]: Without dead ends: 881 [2018-11-07 02:54:39,492 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 196 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2018-11-07 02:54:39,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2018-11-07 02:54:39,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 798. [2018-11-07 02:54:39,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 798 states. [2018-11-07 02:54:39,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1085 transitions. [2018-11-07 02:54:39,615 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1085 transitions. Word has length 189 [2018-11-07 02:54:39,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:54:39,616 INFO L480 AbstractCegarLoop]: Abstraction has 798 states and 1085 transitions. [2018-11-07 02:54:39,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-07 02:54:39,617 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1085 transitions. [2018-11-07 02:54:39,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-11-07 02:54:39,620 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:54:39,620 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, 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] [2018-11-07 02:54:39,621 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:54:39,621 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:54:39,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1669427612, now seen corresponding path program 1 times [2018-11-07 02:54:39,621 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:54:39,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:54:39,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:54:39,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:54:39,623 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:54:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:54:39,941 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 02:54:40,677 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 47 proven. 6 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-11-07 02:54:40,677 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 02:54:40,678 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 02:54:40,678 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 199 with the following transitions: [2018-11-07 02:54:40,678 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [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] [2018-11-07 02:54:40,684 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 02:54:40,684 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 02:54:42,479 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 02:55:07,825 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-11-07 02:55:07,826 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-11-07 02:55:07,827 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-07 02:55:07,827 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 02:55:07,827 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 02:55:07,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:55:07,837 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 02:55:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:55:07,925 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 02:55:07,968 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-07 02:55:08,171 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 02:55:08,171 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 02:55:08,175 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 02:55:08,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:55:08 BoogieIcfgContainer [2018-11-07 02:55:08,175 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 02:55:08,176 INFO L168 Benchmark]: Toolchain (without parser) took 233774.52 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 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 817.5 MB. Max. memory is 7.1 GB. [2018-11-07 02:55:08,177 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-11-07 02:55:08,178 INFO L168 Benchmark]: CACSL2BoogieTranslator took 733.26 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-11-07 02:55:08,179 INFO L168 Benchmark]: Boogie Procedure Inliner took 143.94 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 745.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -822.4 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2018-11-07 02:55:08,181 INFO L168 Benchmark]: Boogie Preprocessor took 94.65 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2018-11-07 02:55:08,182 INFO L168 Benchmark]: RCFGBuilder took 3154.19 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 104.2 MB). Peak memory consumption was 104.2 MB. Max. memory is 7.1 GB. [2018-11-07 02:55:08,188 INFO L168 Benchmark]: TraceAbstraction took 229643.77 ms. Allocated memory was 2.3 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 3.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 745.1 MB. Max. memory is 7.1 GB. [2018-11-07 02:55:08,195 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 733.26 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 143.94 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 745.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -822.4 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.65 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3154.19 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 104.2 MB). Peak memory consumption was 104.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 229643.77 ms. Allocated memory was 2.3 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 3.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 745.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 73). Cancelled while BasicCegarLoop was analyzing trace of length 199 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 8 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 229.5s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 175.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 516 SDtfs, 2462 SDslu, 504 SDs, 0 SdLazy, 2633 SolverSat, 590 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 97.8s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 322 GetRequests, 268 SyntacticMatches, 19 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 12.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=798occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 37.4s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9933832264195771 AbsIntWeakeningRatio, 0.15081967213114755 AbsIntAvgWeakeningVarsNumRemoved, 38.69508196721311 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 88 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 337 NumberOfCodeBlocks, 337 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 334 ConstructedInterpolants, 0 QuantifiedInterpolants, 159769 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 83/140 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown