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/Problem10_label56_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 02:27:33,621 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 02:27:33,623 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 02:27:33,641 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 02:27:33,642 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 02:27:33,643 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 02:27:33,647 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 02:27:33,649 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 02:27:33,652 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 02:27:33,653 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 02:27:33,653 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 02:27:33,655 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 02:27:33,657 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 02:27:33,658 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 02:27:33,666 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 02:27:33,667 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 02:27:33,672 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 02:27:33,677 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 02:27:33,682 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 02:27:33,684 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 02:27:33,685 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 02:27:33,686 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 02:27:33,691 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 02:27:33,691 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 02:27:33,694 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 02:27:33,696 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 02:27:33,696 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 02:27:33,698 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 02:27:33,699 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 02:27:33,700 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 02:27:33,701 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 02:27:33,701 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 02:27:33,702 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 02:27:33,704 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 02:27:33,705 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 02:27:33,706 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 02:27:33,706 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 02:27:33,729 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 02:27:33,730 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 02:27:33,731 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 02:27:33,731 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 02:27:33,731 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 02:27:33,731 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 02:27:33,731 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 02:27:33,732 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 02:27:33,732 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 02:27:33,732 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 02:27:33,732 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 02:27:33,732 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 02:27:33,733 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 02:27:33,733 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 02:27:33,733 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 02:27:33,734 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 02:27:33,734 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 02:27:33,734 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 02:27:33,734 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 02:27:33,734 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 02:27:33,735 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 02:27:33,735 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 02:27:33,735 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 02:27:33,735 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 02:27:33,735 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 02:27:33,735 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 02:27:33,736 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 02:27:33,736 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 02:27:33,736 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 02:27:33,736 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 02:27:33,736 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 02:27:33,737 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 02:27:33,737 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 02:27:33,737 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 02:27:33,782 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 02:27:33,796 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 02:27:33,800 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 02:27:33,801 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 02:27:33,802 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 02:27:33,803 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label56_true-unreach-call.c [2018-10-27 02:27:33,862 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ab40a2f29/83d1276d581f482db51bff0ccdcde136/FLAG3872d616f [2018-10-27 02:27:34,445 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 02:27:34,447 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label56_true-unreach-call.c [2018-10-27 02:27:34,466 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ab40a2f29/83d1276d581f482db51bff0ccdcde136/FLAG3872d616f [2018-10-27 02:27:34,489 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ab40a2f29/83d1276d581f482db51bff0ccdcde136 [2018-10-27 02:27:34,503 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 02:27:34,507 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 02:27:34,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 02:27:34,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 02:27:34,512 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 02:27:34,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:27:34" (1/1) ... [2018-10-27 02:27:34,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@128929bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:27:34, skipping insertion in model container [2018-10-27 02:27:34,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:27:34" (1/1) ... [2018-10-27 02:27:34,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 02:27:34,611 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 02:27:35,104 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 02:27:35,110 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 02:27:35,211 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 02:27:35,229 INFO L193 MainTranslator]: Completed translation [2018-10-27 02:27:35,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:27:35 WrapperNode [2018-10-27 02:27:35,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 02:27:35,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 02:27:35,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 02:27:35,231 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 02:27:35,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:27:35" (1/1) ... [2018-10-27 02:27:35,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:27:35" (1/1) ... [2018-10-27 02:27:35,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 02:27:35,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 02:27:35,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 02:27:35,485 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 02:27:35,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:27:35" (1/1) ... [2018-10-27 02:27:35,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:27:35" (1/1) ... [2018-10-27 02:27:35,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:27:35" (1/1) ... [2018-10-27 02:27:35,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:27:35" (1/1) ... [2018-10-27 02:27:35,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:27:35" (1/1) ... [2018-10-27 02:27:35,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:27:35" (1/1) ... [2018-10-27 02:27:35,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:27:35" (1/1) ... [2018-10-27 02:27:35,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 02:27:35,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 02:27:35,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 02:27:35,607 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 02:27:35,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:27:35" (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 02:27:35,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 02:27:35,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 02:27:35,687 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 02:27:35,687 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 02:27:35,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 02:27:35,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 02:27:35,688 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 02:27:35,688 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 02:27:39,078 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 02:27:39,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:27:39 BoogieIcfgContainer [2018-10-27 02:27:39,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 02:27:39,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 02:27:39,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 02:27:39,085 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 02:27:39,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 02:27:34" (1/3) ... [2018-10-27 02:27:39,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ada0e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:27:39, skipping insertion in model container [2018-10-27 02:27:39,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:27:35" (2/3) ... [2018-10-27 02:27:39,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ada0e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:27:39, skipping insertion in model container [2018-10-27 02:27:39,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:27:39" (3/3) ... [2018-10-27 02:27:39,089 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label56_true-unreach-call.c [2018-10-27 02:27:39,100 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 02:27:39,109 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 02:27:39,128 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 02:27:39,167 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 02:27:39,168 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 02:27:39,168 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 02:27:39,168 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 02:27:39,169 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 02:27:39,169 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 02:27:39,169 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 02:27:39,169 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 02:27:39,198 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-27 02:27:39,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-27 02:27:39,208 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:27:39,209 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] [2018-10-27 02:27:39,212 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:27:39,219 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:27:39,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1189398212, now seen corresponding path program 1 times [2018-10-27 02:27:39,222 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:27:39,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:27:39,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:27:39,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:27:39,278 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:27:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:27:39,688 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 02:27:39,807 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 02:27:39,810 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 02:27:39,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 02:27:39,811 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:27:39,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 02:27:39,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 02:27:39,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 02:27:39,837 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-10-27 02:27:42,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:27:42,067 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-10-27 02:27:42,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 02:27:42,072 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-10-27 02:27:42,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:27:42,094 INFO L225 Difference]: With dead ends: 574 [2018-10-27 02:27:42,094 INFO L226 Difference]: Without dead ends: 356 [2018-10-27 02:27:42,102 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 02:27:42,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-10-27 02:27:42,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-10-27 02:27:42,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-10-27 02:27:42,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 607 transitions. [2018-10-27 02:27:42,184 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 607 transitions. Word has length 30 [2018-10-27 02:27:42,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:27:42,185 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 607 transitions. [2018-10-27 02:27:42,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 02:27:42,185 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 607 transitions. [2018-10-27 02:27:42,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-10-27 02:27:42,193 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:27:42,193 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] [2018-10-27 02:27:42,193 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:27:42,194 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:27:42,194 INFO L82 PathProgramCache]: Analyzing trace with hash 536301288, now seen corresponding path program 1 times [2018-10-27 02:27:42,194 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:27:42,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:27:42,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:27:42,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:27:42,197 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:27:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:27:42,625 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-27 02:27:42,626 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 02:27:42,626 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 02:27:42,627 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 119 with the following transitions: [2018-10-27 02:27:42,629 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] [2018-10-27 02:27:42,734 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 02:27:42,734 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 02:27:45,822 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 02:27:45,824 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 02:27:45,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:27:45,849 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 02:27:48,252 INFO L227 lantSequenceWeakener]: Weakened 103 states. On average, predicates are now at 73.76% of their original sizes. [2018-10-27 02:27:48,252 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 02:27:52,055 INFO L415 sIntCurrentIteration]: We unified 117 AI predicates to 117 [2018-10-27 02:27:52,055 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 02:27:52,056 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 02:27:52,056 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2018-10-27 02:27:52,057 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:27:52,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-27 02:27:52,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-27 02:27:52,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-27 02:27:52,059 INFO L87 Difference]: Start difference. First operand 356 states and 607 transitions. Second operand 10 states. [2018-10-27 02:28:03,709 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 02:28:49,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:28:49,696 INFO L93 Difference]: Finished difference Result 855 states and 1478 transitions. [2018-10-27 02:28:49,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-27 02:28:49,697 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 118 [2018-10-27 02:28:49,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:28:49,704 INFO L225 Difference]: With dead ends: 855 [2018-10-27 02:28:49,704 INFO L226 Difference]: Without dead ends: 505 [2018-10-27 02:28:49,710 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 121 GetRequests, 92 SyntacticMatches, 17 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-10-27 02:28:49,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-10-27 02:28:49,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 500. [2018-10-27 02:28:49,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 500 states. [2018-10-27 02:28:49,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 757 transitions. [2018-10-27 02:28:49,793 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 757 transitions. Word has length 118 [2018-10-27 02:28:49,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:28:49,794 INFO L481 AbstractCegarLoop]: Abstraction has 500 states and 757 transitions. [2018-10-27 02:28:49,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-27 02:28:49,794 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 757 transitions. [2018-10-27 02:28:49,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-10-27 02:28:49,799 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:28:49,800 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] [2018-10-27 02:28:49,800 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:28:49,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:28:49,801 INFO L82 PathProgramCache]: Analyzing trace with hash -524938665, now seen corresponding path program 1 times [2018-10-27 02:28:49,801 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:28:49,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:28:49,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:28:49,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:28:49,803 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:28:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:28:50,097 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-10-27 02:28:50,098 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 02:28:50,098 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 02:28:50,098 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 190 with the following transitions: [2018-10-27 02:28:50,099 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] [2018-10-27 02:28:50,105 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 02:28:50,105 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 02:28:50,740 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 02:28:57,673 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 02:28:57,674 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. [2018-10-27 02:28:57,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:28:57,684 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 02:28:59,904 INFO L227 lantSequenceWeakener]: Weakened 31 states. On average, predicates are now at 76.2% of their original sizes. [2018-10-27 02:28:59,905 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 02:29:06,334 INFO L415 sIntCurrentIteration]: We unified 188 AI predicates to 188 [2018-10-27 02:29:06,334 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 02:29:06,335 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 02:29:06,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [4] total 18 [2018-10-27 02:29:06,335 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:29:06,336 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-27 02:29:06,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-27 02:29:06,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2018-10-27 02:29:06,336 INFO L87 Difference]: Start difference. First operand 500 states and 757 transitions. Second operand 16 states. [2018-10-27 02:31:03,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:31:03,369 INFO L93 Difference]: Finished difference Result 1231 states and 2045 transitions. [2018-10-27 02:31:03,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-27 02:31:03,369 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 189 [2018-10-27 02:31:03,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:31:03,375 INFO L225 Difference]: With dead ends: 1231 [2018-10-27 02:31:03,375 INFO L226 Difference]: Without dead ends: 881 [2018-10-27 02:31:03,378 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 196 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2018-10-27 02:31:03,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2018-10-27 02:31:03,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 798. [2018-10-27 02:31:03,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 798 states. [2018-10-27 02:31:03,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1085 transitions. [2018-10-27 02:31:03,514 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1085 transitions. Word has length 189 [2018-10-27 02:31:03,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:31:03,515 INFO L481 AbstractCegarLoop]: Abstraction has 798 states and 1085 transitions. [2018-10-27 02:31:03,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-27 02:31:03,516 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1085 transitions. [2018-10-27 02:31:03,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-10-27 02:31:03,520 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:31:03,520 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] [2018-10-27 02:31:03,520 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:31:03,521 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:31:03,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1669427612, now seen corresponding path program 1 times [2018-10-27 02:31:03,521 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:31:03,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:31:03,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:31:03,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:31:03,523 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:31:03,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:31:03,862 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 02:31:04,781 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 47 proven. 6 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-27 02:31:04,783 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 02:31:04,784 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 02:31:04,784 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 199 with the following transitions: [2018-10-27 02:31:04,784 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] [2018-10-27 02:31:04,789 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 02:31:04,789 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 02:31:06,331 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-27 02:31:27,399 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-27 02:31:27,399 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-27 02:31:27,400 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-27 02:31:27,401 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 02:31:27,401 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 02:31:27,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:31:27,411 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 02:31:27,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:31:27,522 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 02:31:27,550 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-27 02:31:27,751 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 02:31:27,751 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 02:31:27,757 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 02:31:27,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 02:31:27 BoogieIcfgContainer [2018-10-27 02:31:27,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 02:31:27,758 INFO L168 Benchmark]: Toolchain (without parser) took 233254.21 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 2.0 GB in the end (delta: -611.5 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-27 02:31:27,759 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 02:31:27,760 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.85 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. [2018-10-27 02:31:27,761 INFO L168 Benchmark]: Boogie Procedure Inliner took 253.61 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 764.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -834.9 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2018-10-27 02:31:27,762 INFO L168 Benchmark]: Boogie Preprocessor took 121.47 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 02:31:27,762 INFO L168 Benchmark]: RCFGBuilder took 3472.90 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: 105.8 MB). Peak memory consumption was 105.8 MB. Max. memory is 7.1 GB. [2018-10-27 02:31:27,763 INFO L168 Benchmark]: TraceAbstraction took 228676.55 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 2.0 GB in the end (delta: 85.9 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-27 02:31:27,768 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 722.85 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 253.61 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 764.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -834.9 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.47 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3472.90 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: 105.8 MB). Peak memory consumption was 105.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 228676.55 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 2.0 GB in the end (delta: 85.9 MB). Peak memory consumption was 2.0 GB. 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, 228.6s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 176.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 516 SDtfs, 2462 SDslu, 504 SDs, 0 SdLazy, 2633 SolverSat, 590 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 96.7s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 322 GetRequests, 268 SyntacticMatches, 19 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 13.3s 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, 33.4s 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, 0.2s SatisfiabilityAnalysisTime, 0.9s 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