java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label46_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 16:44:49,427 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 16:44:49,435 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 16:44:49,451 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 16:44:49,452 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 16:44:49,453 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 16:44:49,455 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 16:44:49,457 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 16:44:49,460 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 16:44:49,460 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 16:44:49,461 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 16:44:49,463 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 16:44:49,464 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 16:44:49,465 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 16:44:49,466 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 16:44:49,467 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 16:44:49,468 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 16:44:49,470 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 16:44:49,472 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 16:44:49,473 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 16:44:49,475 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 16:44:49,476 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 16:44:49,478 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 16:44:49,479 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 16:44:49,479 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 16:44:49,480 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 16:44:49,481 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 16:44:49,482 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 16:44:49,482 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 16:44:49,484 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 16:44:49,484 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 16:44:49,485 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 16:44:49,485 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 16:44:49,485 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 16:44:49,486 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 16:44:49,487 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 16:44:49,487 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-12 16:44:49,514 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 16:44:49,514 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 16:44:49,515 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 16:44:49,515 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 16:44:49,516 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 16:44:49,516 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 16:44:49,516 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 16:44:49,516 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 16:44:49,516 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 16:44:49,517 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 16:44:49,517 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 16:44:49,518 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 16:44:49,518 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 16:44:49,519 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 16:44:49,519 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 16:44:49,520 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 16:44:49,520 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 16:44:49,520 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 16:44:49,520 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 16:44:49,520 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 16:44:49,521 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 16:44:49,521 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 16:44:49,521 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 16:44:49,521 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 16:44:49,521 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 16:44:49,522 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 16:44:49,523 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 16:44:49,523 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 16:44:49,524 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 16:44:49,524 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 16:44:49,524 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 16:44:49,524 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 16:44:49,524 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 16:44:49,526 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 16:44:49,527 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 16:44:49,589 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 16:44:49,604 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 16:44:49,607 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 16:44:49,608 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 16:44:49,608 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 16:44:49,609 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label46_false-unreach-call.c [2018-11-12 16:44:49,671 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/963b3206a/529ccab6540144c795734d41341976f9/FLAGf68e37fcf [2018-11-12 16:44:50,297 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 16:44:50,298 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label46_false-unreach-call.c [2018-11-12 16:44:50,318 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/963b3206a/529ccab6540144c795734d41341976f9/FLAGf68e37fcf [2018-11-12 16:44:50,339 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/963b3206a/529ccab6540144c795734d41341976f9 [2018-11-12 16:44:50,349 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 16:44:50,350 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 16:44:50,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 16:44:50,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 16:44:50,355 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 16:44:50,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:44:50" (1/1) ... [2018-11-12 16:44:50,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c68cdb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:44:50, skipping insertion in model container [2018-11-12 16:44:50,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:44:50" (1/1) ... [2018-11-12 16:44:50,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 16:44:50,451 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 16:44:51,164 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 16:44:51,170 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 16:44:51,443 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 16:44:51,465 INFO L193 MainTranslator]: Completed translation [2018-11-12 16:44:51,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:44:51 WrapperNode [2018-11-12 16:44:51,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 16:44:51,467 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 16:44:51,467 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 16:44:51,467 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 16:44:51,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:44:51" (1/1) ... [2018-11-12 16:44:51,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:44:51" (1/1) ... [2018-11-12 16:44:51,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 16:44:51,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 16:44:51,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 16:44:51,650 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 16:44:51,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:44:51" (1/1) ... [2018-11-12 16:44:51,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:44:51" (1/1) ... [2018-11-12 16:44:51,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:44:51" (1/1) ... [2018-11-12 16:44:51,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:44:51" (1/1) ... [2018-11-12 16:44:51,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:44:51" (1/1) ... [2018-11-12 16:44:51,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:44:51" (1/1) ... [2018-11-12 16:44:51,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:44:51" (1/1) ... [2018-11-12 16:44:51,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 16:44:51,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 16:44:51,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 16:44:51,818 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 16:44:51,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:44:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 16:44:51,887 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 16:44:51,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 16:44:51,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 16:44:51,888 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 16:44:51,888 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 16:44:51,888 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 16:44:51,888 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 16:44:51,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 16:44:51,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 16:44:51,889 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 16:44:51,889 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 16:44:57,827 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 16:44:57,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:44:57 BoogieIcfgContainer [2018-11-12 16:44:57,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 16:44:57,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 16:44:57,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 16:44:57,833 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 16:44:57,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:44:50" (1/3) ... [2018-11-12 16:44:57,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c50bb7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:44:57, skipping insertion in model container [2018-11-12 16:44:57,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:44:51" (2/3) ... [2018-11-12 16:44:57,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c50bb7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:44:57, skipping insertion in model container [2018-11-12 16:44:57,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:44:57" (3/3) ... [2018-11-12 16:44:57,836 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label46_false-unreach-call.c [2018-11-12 16:44:57,845 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 16:44:57,855 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 16:44:57,873 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 16:44:57,912 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 16:44:57,912 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 16:44:57,913 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 16:44:57,913 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 16:44:57,913 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 16:44:57,913 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 16:44:57,913 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 16:44:57,913 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 16:44:57,951 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-12 16:44:57,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-12 16:44:57,957 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:44:57,958 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] [2018-11-12 16:44:57,960 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:44:57,965 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:44:57,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1596668835, now seen corresponding path program 1 times [2018-11-12 16:44:57,967 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:44:58,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:44:58,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:44:58,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:44:58,017 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:44:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:44:58,431 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:44:58,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:44:58,543 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:44:58,543 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 16:44:58,544 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:44:58,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 16:44:58,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 16:44:58,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 16:44:58,573 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-11-12 16:45:01,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:45:01,998 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-11-12 16:45:01,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 16:45:02,000 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-11-12 16:45:02,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:45:02,033 INFO L225 Difference]: With dead ends: 1156 [2018-11-12 16:45:02,033 INFO L226 Difference]: Without dead ends: 744 [2018-11-12 16:45:02,045 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 16:45:02,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-11-12 16:45:02,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-11-12 16:45:02,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-12 16:45:02,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1343 transitions. [2018-11-12 16:45:02,197 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1343 transitions. Word has length 23 [2018-11-12 16:45:02,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:45:02,198 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1343 transitions. [2018-11-12 16:45:02,198 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 16:45:02,198 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1343 transitions. [2018-11-12 16:45:02,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-12 16:45:02,207 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:45:02,208 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 16:45:02,208 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:45:02,209 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:45:02,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1825616223, now seen corresponding path program 1 times [2018-11-12 16:45:02,210 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:45:02,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:45:02,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:45:02,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:45:02,211 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:45:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:45:02,594 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:45:02,595 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:45:02,595 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 16:45:02,595 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:45:02,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 16:45:02,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 16:45:02,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 16:45:02,598 INFO L87 Difference]: Start difference. First operand 744 states and 1343 transitions. Second operand 6 states. [2018-11-12 16:45:09,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:45:09,389 INFO L93 Difference]: Finished difference Result 2846 states and 5292 transitions. [2018-11-12 16:45:09,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 16:45:09,396 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 96 [2018-11-12 16:45:09,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:45:09,417 INFO L225 Difference]: With dead ends: 2846 [2018-11-12 16:45:09,417 INFO L226 Difference]: Without dead ends: 2108 [2018-11-12 16:45:09,425 INFO L604 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 [2018-11-12 16:45:09,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2108 states. [2018-11-12 16:45:09,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2108 to 2090. [2018-11-12 16:45:09,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2090 states. [2018-11-12 16:45:09,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 3323 transitions. [2018-11-12 16:45:09,526 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 3323 transitions. Word has length 96 [2018-11-12 16:45:09,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:45:09,527 INFO L480 AbstractCegarLoop]: Abstraction has 2090 states and 3323 transitions. [2018-11-12 16:45:09,527 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 16:45:09,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 3323 transitions. [2018-11-12 16:45:09,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-11-12 16:45:09,541 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:45:09,541 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 16:45:09,542 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:45:09,542 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:45:09,542 INFO L82 PathProgramCache]: Analyzing trace with hash -925105612, now seen corresponding path program 1 times [2018-11-12 16:45:09,542 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:45:09,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:45:09,543 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:45:09,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:45:09,544 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:45:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:45:09,799 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:45:09,800 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:45:09,800 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 16:45:09,800 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:45:09,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 16:45:09,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 16:45:09,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 16:45:09,802 INFO L87 Difference]: Start difference. First operand 2090 states and 3323 transitions. Second operand 6 states. [2018-11-12 16:45:14,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:45:14,052 INFO L93 Difference]: Finished difference Result 5549 states and 9209 transitions. [2018-11-12 16:45:14,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 16:45:14,058 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-11-12 16:45:14,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:45:14,088 INFO L225 Difference]: With dead ends: 5549 [2018-11-12 16:45:14,088 INFO L226 Difference]: Without dead ends: 3465 [2018-11-12 16:45:14,103 INFO L604 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 [2018-11-12 16:45:14,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3465 states. [2018-11-12 16:45:14,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3465 to 3433. [2018-11-12 16:45:14,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3433 states. [2018-11-12 16:45:14,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3433 states to 3433 states and 5124 transitions. [2018-11-12 16:45:14,220 INFO L78 Accepts]: Start accepts. Automaton has 3433 states and 5124 transitions. Word has length 125 [2018-11-12 16:45:14,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:45:14,221 INFO L480 AbstractCegarLoop]: Abstraction has 3433 states and 5124 transitions. [2018-11-12 16:45:14,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 16:45:14,221 INFO L276 IsEmpty]: Start isEmpty. Operand 3433 states and 5124 transitions. [2018-11-12 16:45:14,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-11-12 16:45:14,234 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:45:14,234 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 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] [2018-11-12 16:45:14,235 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:45:14,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:45:14,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1605353442, now seen corresponding path program 1 times [2018-11-12 16:45:14,238 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:45:14,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:45:14,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:45:14,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:45:14,239 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:45:14,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:45:14,600 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 32 proven. 97 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 16:45:14,601 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:45:14,601 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:45:14,602 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 237 with the following transitions: [2018-11-12 16:45:14,604 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [263], [265], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [800], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:45:14,658 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:45:14,658 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:45:15,417 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:45:15,419 INFO L272 AbstractInterpreter]: Visited 116 different actions 116 times. Never merged. Never widened. Performed 1920 root evaluator evaluations with a maximum evaluation depth of 6. Performed 1920 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 24 variables. [2018-11-12 16:45:15,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:45:15,462 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:45:16,258 INFO L227 lantSequenceWeakener]: Weakened 214 states. On average, predicates are now at 77.49% of their original sizes. [2018-11-12 16:45:16,258 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:45:17,272 INFO L415 sIntCurrentIteration]: We unified 235 AI predicates to 235 [2018-11-12 16:45:17,273 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:45:17,274 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:45:17,274 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-12 16:45:17,274 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:45:17,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-12 16:45:17,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-12 16:45:17,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-12 16:45:17,276 INFO L87 Difference]: Start difference. First operand 3433 states and 5124 transitions. Second operand 10 states. [2018-11-12 16:45:22,367 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:45:48,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:45:48,190 INFO L93 Difference]: Finished difference Result 7203 states and 10791 transitions. [2018-11-12 16:45:48,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-12 16:45:48,190 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 236 [2018-11-12 16:45:48,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:45:48,209 INFO L225 Difference]: With dead ends: 7203 [2018-11-12 16:45:48,209 INFO L226 Difference]: Without dead ends: 3776 [2018-11-12 16:45:48,221 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 239 GetRequests, 198 SyntacticMatches, 29 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-11-12 16:45:48,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3776 states. [2018-11-12 16:45:48,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3776 to 3771. [2018-11-12 16:45:48,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3771 states. [2018-11-12 16:45:48,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3771 states to 3771 states and 5470 transitions. [2018-11-12 16:45:48,308 INFO L78 Accepts]: Start accepts. Automaton has 3771 states and 5470 transitions. Word has length 236 [2018-11-12 16:45:48,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:45:48,308 INFO L480 AbstractCegarLoop]: Abstraction has 3771 states and 5470 transitions. [2018-11-12 16:45:48,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-12 16:45:48,309 INFO L276 IsEmpty]: Start isEmpty. Operand 3771 states and 5470 transitions. [2018-11-12 16:45:48,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2018-11-12 16:45:48,315 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:45:48,316 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:45:48,316 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:45:48,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:45:48,317 INFO L82 PathProgramCache]: Analyzing trace with hash 732549473, now seen corresponding path program 1 times [2018-11-12 16:45:48,317 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:45:48,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:45:48,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:45:48,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:45:48,318 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:45:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:45:48,633 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:45:48,795 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 54 proven. 206 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-12 16:45:48,796 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:45:48,796 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:45:48,796 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 329 with the following transitions: [2018-11-12 16:45:48,797 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [263], [265], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [800], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:45:48,802 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:45:48,802 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:45:48,902 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:45:49,996 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:45:49,996 INFO L272 AbstractInterpreter]: Visited 120 different actions 347 times. Merged at 5 different actions 9 times. Never widened. Performed 5756 root evaluator evaluations with a maximum evaluation depth of 6. Performed 5756 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 16:45:50,032 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:45:50,033 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:45:50,826 INFO L227 lantSequenceWeakener]: Weakened 108 states. On average, predicates are now at 77.84% of their original sizes. [2018-11-12 16:45:50,826 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:45:53,131 INFO L415 sIntCurrentIteration]: We unified 327 AI predicates to 327 [2018-11-12 16:45:53,132 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:45:53,132 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:45:53,132 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [6] total 27 [2018-11-12 16:45:53,132 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:45:53,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-12 16:45:53,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-12 16:45:53,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=399, Unknown=0, NotChecked=0, Total=506 [2018-11-12 16:45:53,134 INFO L87 Difference]: Start difference. First operand 3771 states and 5470 transitions. Second operand 23 states. [2018-11-12 16:46:39,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:46:39,767 INFO L93 Difference]: Finished difference Result 9260 states and 13886 transitions. [2018-11-12 16:46:39,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-12 16:46:39,767 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 328 [2018-11-12 16:46:39,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:46:39,791 INFO L225 Difference]: With dead ends: 9260 [2018-11-12 16:46:39,791 INFO L226 Difference]: Without dead ends: 5833 [2018-11-12 16:46:39,804 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 347 GetRequests, 291 SyntacticMatches, 15 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=325, Invalid=1481, Unknown=0, NotChecked=0, Total=1806 [2018-11-12 16:46:39,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5833 states. [2018-11-12 16:46:39,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5833 to 5365. [2018-11-12 16:46:39,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5365 states. [2018-11-12 16:46:39,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5365 states to 5365 states and 7134 transitions. [2018-11-12 16:46:39,933 INFO L78 Accepts]: Start accepts. Automaton has 5365 states and 7134 transitions. Word has length 328 [2018-11-12 16:46:39,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:46:39,934 INFO L480 AbstractCegarLoop]: Abstraction has 5365 states and 7134 transitions. [2018-11-12 16:46:39,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-12 16:46:39,934 INFO L276 IsEmpty]: Start isEmpty. Operand 5365 states and 7134 transitions. [2018-11-12 16:46:39,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2018-11-12 16:46:39,944 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:46:39,944 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1] [2018-11-12 16:46:39,944 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:46:39,945 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:46:39,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1049293351, now seen corresponding path program 1 times [2018-11-12 16:46:39,945 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:46:39,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:46:39,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:46:39,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:46:39,946 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:46:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:46:40,285 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:46:40,839 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 54 proven. 235 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-12 16:46:40,839 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:46:40,839 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:46:40,839 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 365 with the following transitions: [2018-11-12 16:46:40,840 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [263], [265], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [800], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:46:40,848 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:46:40,848 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:46:41,014 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:46:42,011 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:46:42,012 INFO L272 AbstractInterpreter]: Visited 137 different actions 398 times. Merged at 5 different actions 9 times. Never widened. Performed 7065 root evaluator evaluations with a maximum evaluation depth of 6. Performed 7065 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 16:46:42,054 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:46:42,054 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:46:42,582 INFO L227 lantSequenceWeakener]: Weakened 108 states. On average, predicates are now at 77.84% of their original sizes. [2018-11-12 16:46:42,583 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:46:43,312 INFO L415 sIntCurrentIteration]: We unified 363 AI predicates to 363 [2018-11-12 16:46:43,312 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:46:43,312 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:46:43,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [6] total 27 [2018-11-12 16:46:43,313 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:46:43,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-12 16:46:43,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-12 16:46:43,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2018-11-12 16:46:43,317 INFO L87 Difference]: Start difference. First operand 5365 states and 7134 transitions. Second operand 23 states. [2018-11-12 16:47:32,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:47:32,513 INFO L93 Difference]: Finished difference Result 11093 states and 15539 transitions. [2018-11-12 16:47:32,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-12 16:47:32,514 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 364 [2018-11-12 16:47:32,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:47:32,542 INFO L225 Difference]: With dead ends: 11093 [2018-11-12 16:47:32,542 INFO L226 Difference]: Without dead ends: 6939 [2018-11-12 16:47:32,555 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 379 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=277, Invalid=1205, Unknown=0, NotChecked=0, Total=1482 [2018-11-12 16:47:32,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6939 states. [2018-11-12 16:47:32,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6939 to 6923. [2018-11-12 16:47:32,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6923 states. [2018-11-12 16:47:32,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6923 states to 6923 states and 8766 transitions. [2018-11-12 16:47:32,735 INFO L78 Accepts]: Start accepts. Automaton has 6923 states and 8766 transitions. Word has length 364 [2018-11-12 16:47:32,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:47:32,735 INFO L480 AbstractCegarLoop]: Abstraction has 6923 states and 8766 transitions. [2018-11-12 16:47:32,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-12 16:47:32,736 INFO L276 IsEmpty]: Start isEmpty. Operand 6923 states and 8766 transitions. [2018-11-12 16:47:32,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2018-11-12 16:47:32,757 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:47:32,757 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:47:32,758 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:47:32,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:47:32,758 INFO L82 PathProgramCache]: Analyzing trace with hash -764737031, now seen corresponding path program 1 times [2018-11-12 16:47:32,758 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:47:32,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:47:32,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:47:32,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:47:32,760 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:47:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:47:33,208 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:47:34,150 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 54 proven. 235 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-12 16:47:34,150 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:47:34,151 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:47:34,151 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 477 with the following transitions: [2018-11-12 16:47:34,151 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [263], [265], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [800], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:47:34,158 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:47:34,158 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:47:34,550 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:47:34,550 INFO L272 AbstractInterpreter]: Visited 249 different actions 492 times. Merged at 5 different actions 5 times. Never widened. Performed 6288 root evaluator evaluations with a maximum evaluation depth of 6. Performed 6288 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 16:47:34,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:47:34,558 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:47:35,046 INFO L227 lantSequenceWeakener]: Weakened 246 states. On average, predicates are now at 77.61% of their original sizes. [2018-11-12 16:47:35,046 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:47:36,537 INFO L415 sIntCurrentIteration]: We unified 475 AI predicates to 475 [2018-11-12 16:47:36,538 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:47:36,538 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:47:36,538 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [6] total 22 [2018-11-12 16:47:36,538 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:47:36,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-12 16:47:36,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-12 16:47:36,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2018-11-12 16:47:36,540 INFO L87 Difference]: Start difference. First operand 6923 states and 8766 transitions. Second operand 18 states. [2018-11-12 16:47:38,692 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:48:05,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:48:05,867 INFO L93 Difference]: Finished difference Result 12402 states and 16447 transitions. [2018-11-12 16:48:05,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-12 16:48:05,868 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 476 [2018-11-12 16:48:05,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:48:05,892 INFO L225 Difference]: With dead ends: 12402 [2018-11-12 16:48:05,892 INFO L226 Difference]: Without dead ends: 7559 [2018-11-12 16:48:05,905 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 491 GetRequests, 408 SyntacticMatches, 51 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=213, Invalid=909, Unknown=0, NotChecked=0, Total=1122 [2018-11-12 16:48:05,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7559 states. [2018-11-12 16:48:06,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7559 to 7554. [2018-11-12 16:48:06,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7554 states. [2018-11-12 16:48:06,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7554 states to 7554 states and 9429 transitions. [2018-11-12 16:48:06,061 INFO L78 Accepts]: Start accepts. Automaton has 7554 states and 9429 transitions. Word has length 476 [2018-11-12 16:48:06,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:48:06,062 INFO L480 AbstractCegarLoop]: Abstraction has 7554 states and 9429 transitions. [2018-11-12 16:48:06,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-12 16:48:06,062 INFO L276 IsEmpty]: Start isEmpty. Operand 7554 states and 9429 transitions. [2018-11-12 16:48:06,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2018-11-12 16:48:06,079 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:48:06,080 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:48:06,080 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:48:06,080 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:48:06,081 INFO L82 PathProgramCache]: Analyzing trace with hash 901363561, now seen corresponding path program 1 times [2018-11-12 16:48:06,081 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:48:06,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:48:06,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:48:06,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:48:06,082 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:48:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:48:06,492 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:48:07,111 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 54 proven. 235 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-12 16:48:07,112 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:48:07,112 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:48:07,112 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 485 with the following transitions: [2018-11-12 16:48:07,112 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [263], [265], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [800], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:48:07,117 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:48:07,117 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:48:10,031 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:48:10,031 INFO L272 AbstractInterpreter]: Visited 257 different actions 2265 times. Merged at 5 different actions 40 times. Widened at 1 different actions 4 times. Performed 40041 root evaluator evaluations with a maximum evaluation depth of 6. Performed 40041 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 16:48:10,038 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:48:10,038 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:48:10,684 INFO L227 lantSequenceWeakener]: Weakened 30 states. On average, predicates are now at 79.25% of their original sizes. [2018-11-12 16:48:10,684 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:48:11,053 INFO L415 sIntCurrentIteration]: We unified 483 AI predicates to 483 [2018-11-12 16:48:11,053 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:48:11,054 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:48:11,054 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [6] total 26 [2018-11-12 16:48:11,054 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:48:11,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-12 16:48:11,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-12 16:48:11,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2018-11-12 16:48:11,056 INFO L87 Difference]: Start difference. First operand 7554 states and 9429 transitions. Second operand 22 states. [2018-11-12 16:48:13,039 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:48:26,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:48:26,876 INFO L93 Difference]: Finished difference Result 13038 states and 17071 transitions. [2018-11-12 16:48:26,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-11-12 16:48:26,877 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 484 [2018-11-12 16:48:26,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:48:26,898 INFO L225 Difference]: With dead ends: 13038 [2018-11-12 16:48:26,899 INFO L226 Difference]: Without dead ends: 8195 [2018-11-12 16:48:26,912 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 494 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=214, Invalid=842, Unknown=0, NotChecked=0, Total=1056 [2018-11-12 16:48:26,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8195 states. [2018-11-12 16:48:27,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8195 to 8187. [2018-11-12 16:48:27,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8187 states. [2018-11-12 16:48:27,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8187 states to 8187 states and 10101 transitions. [2018-11-12 16:48:27,062 INFO L78 Accepts]: Start accepts. Automaton has 8187 states and 10101 transitions. Word has length 484 [2018-11-12 16:48:27,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:48:27,063 INFO L480 AbstractCegarLoop]: Abstraction has 8187 states and 10101 transitions. [2018-11-12 16:48:27,063 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-12 16:48:27,063 INFO L276 IsEmpty]: Start isEmpty. Operand 8187 states and 10101 transitions. [2018-11-12 16:48:27,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2018-11-12 16:48:27,087 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:48:27,088 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:48:27,088 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:48:27,088 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:48:27,089 INFO L82 PathProgramCache]: Analyzing trace with hash 187638076, now seen corresponding path program 1 times [2018-11-12 16:48:27,089 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:48:27,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:48:27,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:48:27,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:48:27,090 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:48:27,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:48:27,672 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-11-12 16:48:28,026 WARN L179 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-11-12 16:48:28,500 WARN L179 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-11-12 16:48:28,793 WARN L179 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2018-11-12 16:48:28,902 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2018-11-12 16:48:30,212 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 164 proven. 209 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2018-11-12 16:48:30,212 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:48:30,212 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:48:30,213 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 569 with the following transitions: [2018-11-12 16:48:30,213 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [263], [265], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [800], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:48:30,217 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:48:30,217 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:48:30,289 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-12 16:48:30,436 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-11-12 16:48:30,436 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-11-12 16:48:30,438 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-12 16:48:30,438 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:48:30,438 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 16:48:30,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:48:30,448 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 16:48:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:48:30,626 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 16:48:30,661 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-12 16:48:30,862 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 16:48:30,862 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 16:48:30,868 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 16:48:30,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 04:48:30 BoogieIcfgContainer [2018-11-12 16:48:30,868 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 16:48:30,869 INFO L168 Benchmark]: Toolchain (without parser) took 220519.66 ms. Allocated memory was 1.5 GB in the beginning and 4.9 GB in the end (delta: 3.3 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -625.6 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-11-12 16:48:30,870 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 16:48:30,871 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1114.92 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-11-12 16:48:30,871 INFO L168 Benchmark]: Boogie Procedure Inliner took 182.35 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 774.9 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -903.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-11-12 16:48:30,872 INFO L168 Benchmark]: Boogie Preprocessor took 167.47 ms. Allocated memory is still 2.3 GB. Free memory is still 2.3 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 16:48:30,873 INFO L168 Benchmark]: RCFGBuilder took 6011.44 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 263.0 MB). Peak memory consumption was 263.0 MB. Max. memory is 7.1 GB. [2018-11-12 16:48:30,874 INFO L168 Benchmark]: TraceAbstraction took 213038.39 ms. Allocated memory was 2.3 GB in the beginning and 4.9 GB in the end (delta: 2.6 GB). Free memory was 2.0 GB in the beginning and 2.1 GB in the end (delta: -70.2 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-11-12 16:48:30,884 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 1114.92 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 182.35 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 774.9 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -903.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 167.47 ms. Allocated memory is still 2.3 GB. Free memory is still 2.3 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 6011.44 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 263.0 MB). Peak memory consumption was 263.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213038.39 ms. Allocated memory was 2.3 GB in the beginning and 4.9 GB in the end (delta: 2.6 GB). Free memory was 2.0 GB in the beginning and 2.1 GB in the end (delta: -70.2 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 55). Cancelled while BasicCegarLoop was analyzing trace of length 569 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 13 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 212.9s OverallTime, 9 OverallIterations, 5 TraceHistogramMax, 186.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2354 SDtfs, 23088 SDslu, 2121 SDs, 0 SdLazy, 29576 SolverSat, 4824 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 70.1s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 1975 GetRequests, 1708 SyntacticMatches, 99 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1578 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8187occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 6.8s AbstIntTime, 6 AbstIntIterations, 5 AbstIntStrong, 0.9975692894081691 AbsIntWeakeningRatio, 0.08178438661710037 AbsIntAvgWeakeningVarsNumRemoved, 10.315985130111525 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 552 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 2132 NumberOfCodeBlocks, 2132 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 2124 ConstructedInterpolants, 0 QuantifiedInterpolants, 2347146 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 581/1589 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown