java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label02_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 03:38:38,554 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 03:38:38,556 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 03:38:38,569 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 03:38:38,569 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 03:38:38,570 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 03:38:38,571 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 03:38:38,573 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 03:38:38,575 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 03:38:38,576 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 03:38:38,577 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 03:38:38,577 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 03:38:38,578 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 03:38:38,579 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 03:38:38,580 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 03:38:38,581 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 03:38:38,582 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 03:38:38,583 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 03:38:38,585 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 03:38:38,587 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 03:38:38,588 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 03:38:38,589 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 03:38:38,595 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-27 03:38:38,605 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 03:38:38,605 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 03:38:38,606 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 03:38:38,608 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 03:38:38,608 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-27 03:38:38,640 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 03:38:38,640 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 03:38:38,642 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 03:38:38,642 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 03:38:38,642 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 03:38:38,643 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 03:38:38,643 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 03:38:38,643 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 03:38:38,643 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 03:38:38,644 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 03:38:38,644 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 03:38:38,644 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 03:38:38,645 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 03:38:38,646 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 03:38:38,647 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 03:38:38,647 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 03:38:38,647 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 03:38:38,647 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 03:38:38,647 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 03:38:38,648 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 03:38:38,648 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 03:38:38,648 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 03:38:38,648 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 03:38:38,648 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 03:38:38,648 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 03:38:38,650 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 03:38:38,650 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 03:38:38,650 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 03:38:38,651 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 03:38:38,651 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 03:38:38,651 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 03:38:38,651 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 03:38:38,651 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 03:38:38,651 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 03:38:38,719 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 03:38:38,731 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 03:38:38,735 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 03:38:38,737 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 03:38:38,737 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 03:38:38,738 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label02_true-unreach-call.c [2018-10-27 03:38:38,796 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2b9b70e96/0c7bd683378644a8a758898f83affa0f/FLAG645d85e9c [2018-10-27 03:38:39,475 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 03:38:39,476 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label02_true-unreach-call.c [2018-10-27 03:38:39,500 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2b9b70e96/0c7bd683378644a8a758898f83affa0f/FLAG645d85e9c [2018-10-27 03:38:39,516 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2b9b70e96/0c7bd683378644a8a758898f83affa0f [2018-10-27 03:38:39,527 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 03:38:39,529 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 03:38:39,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 03:38:39,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 03:38:39,534 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 03:38:39,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:38:39" (1/1) ... [2018-10-27 03:38:39,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b326c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:39, skipping insertion in model container [2018-10-27 03:38:39,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:38:39" (1/1) ... [2018-10-27 03:38:39,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 03:38:39,684 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 03:38:40,826 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:38:40,831 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 03:38:41,286 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:38:41,313 INFO L193 MainTranslator]: Completed translation [2018-10-27 03:38:41,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:41 WrapperNode [2018-10-27 03:38:41,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 03:38:41,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 03:38:41,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 03:38:41,315 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 03:38:41,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:41" (1/1) ... [2018-10-27 03:38:41,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:41" (1/1) ... [2018-10-27 03:38:41,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 03:38:41,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 03:38:41,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 03:38:41,696 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 03:38:41,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:41" (1/1) ... [2018-10-27 03:38:41,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:41" (1/1) ... [2018-10-27 03:38:41,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:41" (1/1) ... [2018-10-27 03:38:41,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:41" (1/1) ... [2018-10-27 03:38:41,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:41" (1/1) ... [2018-10-27 03:38:41,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:41" (1/1) ... [2018-10-27 03:38:41,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:41" (1/1) ... [2018-10-27 03:38:41,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 03:38:41,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 03:38:41,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 03:38:41,972 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 03:38:41,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 03:38:42,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 03:38:42,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 03:38:42,046 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 03:38:42,046 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 03:38:42,047 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 03:38:42,047 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 03:38:42,047 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 03:38:42,047 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 03:38:42,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 03:38:42,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 03:38:42,048 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 03:38:42,048 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 03:38:50,274 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 03:38:50,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:38:50 BoogieIcfgContainer [2018-10-27 03:38:50,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 03:38:50,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 03:38:50,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 03:38:50,280 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 03:38:50,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:38:39" (1/3) ... [2018-10-27 03:38:50,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78f4d0f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:38:50, skipping insertion in model container [2018-10-27 03:38:50,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:41" (2/3) ... [2018-10-27 03:38:50,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78f4d0f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:38:50, skipping insertion in model container [2018-10-27 03:38:50,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:38:50" (3/3) ... [2018-10-27 03:38:50,284 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label02_true-unreach-call.c [2018-10-27 03:38:50,294 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 03:38:50,304 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 03:38:50,323 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 03:38:50,369 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 03:38:50,369 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 03:38:50,369 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 03:38:50,369 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 03:38:50,369 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 03:38:50,370 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 03:38:50,370 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 03:38:50,370 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 03:38:50,420 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-27 03:38:50,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-10-27 03:38:50,433 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:38:50,434 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:38:50,437 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:38:50,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:38:50,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1847175428, now seen corresponding path program 1 times [2018-10-27 03:38:50,448 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:38:50,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:38:50,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:38:50,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:38:50,511 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:38:50,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:38:51,013 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 03:38:51,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:38:51,104 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:38:51,105 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 03:38:51,105 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:38:51,112 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 03:38:51,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 03:38:51,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 03:38:51,132 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-10-27 03:38:58,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:38:58,102 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-10-27 03:38:58,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 03:38:58,104 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2018-10-27 03:38:58,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:38:58,138 INFO L225 Difference]: With dead ends: 2251 [2018-10-27 03:38:58,138 INFO L226 Difference]: Without dead ends: 1474 [2018-10-27 03:38:58,150 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 03:38:58,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-10-27 03:38:58,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-10-27 03:38:58,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-10-27 03:38:58,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2801 transitions. [2018-10-27 03:38:58,302 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2801 transitions. Word has length 68 [2018-10-27 03:38:58,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:38:58,303 INFO L481 AbstractCegarLoop]: Abstraction has 1474 states and 2801 transitions. [2018-10-27 03:38:58,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 03:38:58,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2801 transitions. [2018-10-27 03:38:58,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-10-27 03:38:58,316 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:38:58,316 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 03:38:58,317 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:38:58,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:38:58,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1532118751, now seen corresponding path program 1 times [2018-10-27 03:38:58,318 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:38:58,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:38:58,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:38:58,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:38:58,319 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:38:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:38:58,622 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:38:58,622 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:38:58,622 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:38:58,622 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:38:58,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:38:58,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:38:58,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:38:58,626 INFO L87 Difference]: Start difference. First operand 1474 states and 2801 transitions. Second operand 6 states. [2018-10-27 03:39:07,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:39:07,782 INFO L93 Difference]: Finished difference Result 4422 states and 8490 transitions. [2018-10-27 03:39:07,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:39:07,790 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2018-10-27 03:39:07,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:39:07,812 INFO L225 Difference]: With dead ends: 4422 [2018-10-27 03:39:07,813 INFO L226 Difference]: Without dead ends: 2954 [2018-10-27 03:39:07,818 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 03:39:07,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2018-10-27 03:39:07,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 2928. [2018-10-27 03:39:07,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2928 states. [2018-10-27 03:39:07,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 5043 transitions. [2018-10-27 03:39:07,916 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 5043 transitions. Word has length 143 [2018-10-27 03:39:07,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:39:07,917 INFO L481 AbstractCegarLoop]: Abstraction has 2928 states and 5043 transitions. [2018-10-27 03:39:07,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:39:07,917 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 5043 transitions. [2018-10-27 03:39:07,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-10-27 03:39:07,923 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:39:07,923 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:39:07,923 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:39:07,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:39:07,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1969176313, now seen corresponding path program 1 times [2018-10-27 03:39:07,924 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:39:07,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:39:07,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:39:07,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:39:07,925 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:39:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:39:08,206 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:39:08,207 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:39:08,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:39:08,207 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:39:08,208 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:39:08,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:39:08,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:39:08,208 INFO L87 Difference]: Start difference. First operand 2928 states and 5043 transitions. Second operand 6 states. [2018-10-27 03:39:21,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:39:21,017 INFO L93 Difference]: Finished difference Result 11887 states and 21681 transitions. [2018-10-27 03:39:21,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-27 03:39:21,020 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 155 [2018-10-27 03:39:21,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:39:21,092 INFO L225 Difference]: With dead ends: 11887 [2018-10-27 03:39:21,092 INFO L226 Difference]: Without dead ends: 8965 [2018-10-27 03:39:21,129 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-27 03:39:21,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8965 states. [2018-10-27 03:39:21,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8965 to 8893. [2018-10-27 03:39:21,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8893 states. [2018-10-27 03:39:21,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8893 states to 8893 states and 13539 transitions. [2018-10-27 03:39:21,452 INFO L78 Accepts]: Start accepts. Automaton has 8893 states and 13539 transitions. Word has length 155 [2018-10-27 03:39:21,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:39:21,453 INFO L481 AbstractCegarLoop]: Abstraction has 8893 states and 13539 transitions. [2018-10-27 03:39:21,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:39:21,454 INFO L276 IsEmpty]: Start isEmpty. Operand 8893 states and 13539 transitions. [2018-10-27 03:39:21,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-10-27 03:39:21,463 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:39:21,463 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:39:21,464 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:39:21,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:39:21,464 INFO L82 PathProgramCache]: Analyzing trace with hash 642429817, now seen corresponding path program 1 times [2018-10-27 03:39:21,464 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:39:21,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:39:21,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:39:21,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:39:21,467 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:39:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:39:21,898 WARN L179 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 03:39:21,953 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 122 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 03:39:21,954 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:39:21,954 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:39:21,955 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 226 with the following transitions: [2018-10-27 03:39:21,957 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2031], [2039], [2047], [2055], [2063], [2067], [2069], [2072], [2080], [2088], [2096], [2104], [2112], [2116], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2184], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-27 03:39:22,031 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:39:22,031 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:39:23,390 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 03:39:24,049 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 03:39:24,051 INFO L272 AbstractInterpreter]: Visited 92 different actions 92 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-27 03:39:24,062 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:39:24,062 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 03:39:26,086 INFO L227 lantSequenceWeakener]: Weakened 217 states. On average, predicates are now at 78.41% of their original sizes. [2018-10-27 03:39:26,086 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 03:39:26,517 INFO L415 sIntCurrentIteration]: We unified 224 AI predicates to 224 [2018-10-27 03:39:26,518 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 03:39:26,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 03:39:26,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2018-10-27 03:39:26,519 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:39:26,525 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 03:39:26,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 03:39:26,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-27 03:39:26,526 INFO L87 Difference]: Start difference. First operand 8893 states and 13539 transitions. Second operand 7 states. [2018-10-27 03:41:26,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:41:26,722 INFO L93 Difference]: Finished difference Result 18485 states and 27917 transitions. [2018-10-27 03:41:26,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:41:26,722 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 225 [2018-10-27 03:41:26,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:41:26,767 INFO L225 Difference]: With dead ends: 18485 [2018-10-27 03:41:26,768 INFO L226 Difference]: Without dead ends: 9598 [2018-10-27 03:41:26,797 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 225 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-27 03:41:26,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9598 states. [2018-10-27 03:41:27,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9598 to 9596. [2018-10-27 03:41:27,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9596 states. [2018-10-27 03:41:27,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9596 states to 9596 states and 14254 transitions. [2018-10-27 03:41:27,039 INFO L78 Accepts]: Start accepts. Automaton has 9596 states and 14254 transitions. Word has length 225 [2018-10-27 03:41:27,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:41:27,039 INFO L481 AbstractCegarLoop]: Abstraction has 9596 states and 14254 transitions. [2018-10-27 03:41:27,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 03:41:27,040 INFO L276 IsEmpty]: Start isEmpty. Operand 9596 states and 14254 transitions. [2018-10-27 03:41:27,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2018-10-27 03:41:27,050 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:41:27,051 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:41:27,051 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:41:27,052 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:41:27,052 INFO L82 PathProgramCache]: Analyzing trace with hash 2045231702, now seen corresponding path program 1 times [2018-10-27 03:41:27,052 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:41:27,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:41:27,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:41:27,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:41:27,054 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:41:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:41:28,076 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 242 proven. 163 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 03:41:28,076 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:41:28,076 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:41:28,076 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 413 with the following transitions: [2018-10-27 03:41:28,077 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2031], [2039], [2047], [2055], [2063], [2067], [2069], [2072], [2080], [2088], [2096], [2104], [2112], [2116], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2184], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-27 03:41:28,087 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:41:28,087 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:41:29,366 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 03:41:39,947 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 03:41:39,947 INFO L272 AbstractInterpreter]: Visited 196 different actions 386 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 03:41:39,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:41:39,961 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 03:41:43,170 INFO L227 lantSequenceWeakener]: Weakened 138 states. On average, predicates are now at 78.82% of their original sizes. [2018-10-27 03:41:43,171 INFO L413 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-27 03:42:08,821 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 03:42:08,825 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 03:42:08,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:42:08 BoogieIcfgContainer [2018-10-27 03:42:08,825 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 03:42:08,826 INFO L168 Benchmark]: Toolchain (without parser) took 209298.50 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -195.3 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-10-27 03:42:08,827 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 03:42:08,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1784.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-27 03:42:08,829 INFO L168 Benchmark]: Boogie Procedure Inliner took 380.46 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 777.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -953.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. [2018-10-27 03:42:08,830 INFO L168 Benchmark]: Boogie Preprocessor took 275.76 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2018-10-27 03:42:08,830 INFO L168 Benchmark]: RCFGBuilder took 8303.29 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 514.1 MB). Peak memory consumption was 514.1 MB. Max. memory is 7.1 GB. [2018-10-27 03:42:08,831 INFO L168 Benchmark]: TraceAbstraction took 198549.23 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 1.6 GB in the end (delta: 81.7 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-27 03:42:08,836 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1784.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 380.46 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 777.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -953.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 275.76 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8303.29 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 514.1 MB). Peak memory consumption was 514.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 198549.23 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 1.6 GB in the end (delta: 81.7 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 192]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 192). Cancelled while BasicCegarLoop was analyzing trace of length 413 with TraceHistMax 4,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 12 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 198.4s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 149.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1159 SDtfs, 7858 SDslu, 733 SDs, 0 SdLazy, 15378 SolverSat, 4233 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 98.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 251 GetRequests, 226 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9596occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 13.9s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9961514321579368 AbsIntWeakeningRatio, 0.09133858267716535 AbsIntAvgWeakeningVarsNumRemoved, 713.5826771653543 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 4 MinimizatonAttempts, 100 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 591 NumberOfCodeBlocks, 591 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 587 ConstructedInterpolants, 0 QuantifiedInterpolants, 245538 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 249/314 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown