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/Problem13_label35_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 16:23:37,258 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 16:23:37,260 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 16:23:37,278 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 16:23:37,278 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 16:23:37,279 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 16:23:37,282 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 16:23:37,285 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 16:23:37,287 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 16:23:37,289 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 16:23:37,290 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 16:23:37,292 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 16:23:37,293 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 16:23:37,296 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 16:23:37,304 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 16:23:37,305 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 16:23:37,307 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 16:23:37,309 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 16:23:37,313 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 16:23:37,317 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 16:23:37,318 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 16:23:37,320 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 16:23:37,325 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 16:23:37,325 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 16:23:37,326 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 16:23:37,327 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 16:23:37,328 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 16:23:37,329 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 16:23:37,330 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 16:23:37,331 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 16:23:37,333 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 16:23:37,334 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 16:23:37,334 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 16:23:37,334 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 16:23:37,337 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 16:23:37,338 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 16:23:37,339 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 16:23:37,364 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 16:23:37,365 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 16:23:37,366 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 16:23:37,366 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 16:23:37,367 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 16:23:37,367 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 16:23:37,367 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 16:23:37,367 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 16:23:37,367 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 16:23:37,368 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 16:23:37,368 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 16:23:37,368 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 16:23:37,368 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 16:23:37,369 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 16:23:37,369 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 16:23:37,369 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 16:23:37,370 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 16:23:37,370 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 16:23:37,370 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 16:23:37,370 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 16:23:37,370 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 16:23:37,371 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 16:23:37,371 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 16:23:37,371 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 16:23:37,371 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 16:23:37,371 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 16:23:37,372 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 16:23:37,372 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 16:23:37,372 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 16:23:37,372 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 16:23:37,372 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 16:23:37,372 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 16:23:37,373 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 16:23:37,373 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 16:23:37,373 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 16:23:37,434 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 16:23:37,453 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 16:23:37,459 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 16:23:37,461 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 16:23:37,461 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 16:23:37,462 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label35_false-unreach-call.c [2018-11-12 16:23:37,532 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/273f52d97/3363ebb143374e468a997faab45fafa6/FLAGe39125fea [2018-11-12 16:23:38,304 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 16:23:38,305 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label35_false-unreach-call.c [2018-11-12 16:23:38,337 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/273f52d97/3363ebb143374e468a997faab45fafa6/FLAGe39125fea [2018-11-12 16:23:38,357 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/273f52d97/3363ebb143374e468a997faab45fafa6 [2018-11-12 16:23:38,370 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 16:23:38,372 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 16:23:38,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 16:23:38,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 16:23:38,383 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 16:23:38,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:23:38" (1/1) ... [2018-11-12 16:23:38,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8ba1523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:23:38, skipping insertion in model container [2018-11-12 16:23:38,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:23:38" (1/1) ... [2018-11-12 16:23:38,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 16:23:38,591 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 16:23:40,195 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 16:23:40,202 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 16:23:40,941 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 16:23:40,979 INFO L193 MainTranslator]: Completed translation [2018-11-12 16:23:40,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:23:40 WrapperNode [2018-11-12 16:23:40,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 16:23:40,981 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 16:23:40,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 16:23:40,982 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 16:23:41,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:23:40" (1/1) ... [2018-11-12 16:23:41,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:23:40" (1/1) ... [2018-11-12 16:23:41,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 16:23:41,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 16:23:41,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 16:23:41,356 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 16:23:41,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:23:40" (1/1) ... [2018-11-12 16:23:41,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:23:40" (1/1) ... [2018-11-12 16:23:41,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:23:40" (1/1) ... [2018-11-12 16:23:41,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:23:40" (1/1) ... [2018-11-12 16:23:41,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:23:40" (1/1) ... [2018-11-12 16:23:41,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:23:40" (1/1) ... [2018-11-12 16:23:41,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:23:40" (1/1) ... [2018-11-12 16:23:41,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 16:23:41,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 16:23:41,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 16:23:41,660 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 16:23:41,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:23:40" (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 16:23:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 16:23:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 16:23:41,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 16:23:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-12 16:23:41,737 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-12 16:23:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-12 16:23:41,737 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-12 16:23:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 16:23:41,737 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 16:23:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 16:23:41,738 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 16:23:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 16:23:41,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 16:23:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 16:23:41,739 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 16:23:53,570 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 16:23:53,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:23:53 BoogieIcfgContainer [2018-11-12 16:23:53,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 16:23:53,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 16:23:53,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 16:23:53,575 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 16:23:53,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:23:38" (1/3) ... [2018-11-12 16:23:53,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14fc49dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:23:53, skipping insertion in model container [2018-11-12 16:23:53,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:23:40" (2/3) ... [2018-11-12 16:23:53,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14fc49dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:23:53, skipping insertion in model container [2018-11-12 16:23:53,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:23:53" (3/3) ... [2018-11-12 16:23:53,578 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label35_false-unreach-call.c [2018-11-12 16:23:53,589 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 16:23:53,601 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 16:23:53,620 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 16:23:53,672 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 16:23:53,672 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 16:23:53,672 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 16:23:53,672 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 16:23:53,672 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 16:23:53,672 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 16:23:53,673 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 16:23:53,673 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 16:23:53,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-11-12 16:23:53,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-12 16:23:53,725 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:23:53,728 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:23:53,730 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:23:53,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:23:53,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1619537211, now seen corresponding path program 1 times [2018-11-12 16:23:53,742 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:23:53,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:23:53,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:23:53,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:23:53,802 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:23:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:23:54,236 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-11-12 16:23:54,241 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 16:23:54,243 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:23:54,243 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 16:23:54,243 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:23:54,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 16:23:54,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 16:23:54,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 16:23:54,272 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-11-12 16:24:06,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:24:06,847 INFO L93 Difference]: Finished difference Result 3968 states and 7392 transitions. [2018-11-12 16:24:06,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 16:24:06,849 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-11-12 16:24:06,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:24:06,892 INFO L225 Difference]: With dead ends: 3968 [2018-11-12 16:24:06,893 INFO L226 Difference]: Without dead ends: 2842 [2018-11-12 16:24:06,906 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 16:24:06,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2018-11-12 16:24:07,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 1981. [2018-11-12 16:24:07,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1981 states. [2018-11-12 16:24:07,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 3456 transitions. [2018-11-12 16:24:07,098 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 3456 transitions. Word has length 17 [2018-11-12 16:24:07,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:24:07,099 INFO L480 AbstractCegarLoop]: Abstraction has 1981 states and 3456 transitions. [2018-11-12 16:24:07,099 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 16:24:07,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 3456 transitions. [2018-11-12 16:24:07,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-11-12 16:24:07,107 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:24:07,107 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:24:07,108 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:24:07,108 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:24:07,109 INFO L82 PathProgramCache]: Analyzing trace with hash 958659262, now seen corresponding path program 1 times [2018-11-12 16:24:07,110 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:24:07,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:24:07,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:24:07,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:24:07,112 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:24:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:24:07,484 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:24:07,541 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:24:07,541 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:24:07,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 16:24:07,542 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:24:07,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 16:24:07,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 16:24:07,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 16:24:07,545 INFO L87 Difference]: Start difference. First operand 1981 states and 3456 transitions. Second operand 5 states. [2018-11-12 16:24:19,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:24:19,539 INFO L93 Difference]: Finished difference Result 5673 states and 10081 transitions. [2018-11-12 16:24:19,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 16:24:19,540 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 87 [2018-11-12 16:24:19,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:24:19,568 INFO L225 Difference]: With dead ends: 5673 [2018-11-12 16:24:19,569 INFO L226 Difference]: Without dead ends: 3698 [2018-11-12 16:24:19,577 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 16:24:19,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2018-11-12 16:24:19,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 3687. [2018-11-12 16:24:19,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3687 states. [2018-11-12 16:24:19,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3687 states to 3687 states and 5870 transitions. [2018-11-12 16:24:19,696 INFO L78 Accepts]: Start accepts. Automaton has 3687 states and 5870 transitions. Word has length 87 [2018-11-12 16:24:19,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:24:19,697 INFO L480 AbstractCegarLoop]: Abstraction has 3687 states and 5870 transitions. [2018-11-12 16:24:19,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 16:24:19,697 INFO L276 IsEmpty]: Start isEmpty. Operand 3687 states and 5870 transitions. [2018-11-12 16:24:19,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-11-12 16:24:19,701 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:24:19,702 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:24:19,702 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:24:19,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:24:19,703 INFO L82 PathProgramCache]: Analyzing trace with hash -103892254, now seen corresponding path program 1 times [2018-11-12 16:24:19,703 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:24:19,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:24:19,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:24:19,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:24:19,706 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:24:19,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:24:19,917 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:24:19,918 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:24:19,918 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 16:24:19,918 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:24:19,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 16:24:19,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 16:24:19,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 16:24:19,919 INFO L87 Difference]: Start difference. First operand 3687 states and 5870 transitions. Second operand 5 states. [2018-11-12 16:24:28,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:24:28,971 INFO L93 Difference]: Finished difference Result 10955 states and 17866 transitions. [2018-11-12 16:24:28,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 16:24:28,973 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 89 [2018-11-12 16:24:28,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:24:29,019 INFO L225 Difference]: With dead ends: 10955 [2018-11-12 16:24:29,019 INFO L226 Difference]: Without dead ends: 7274 [2018-11-12 16:24:29,033 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 16:24:29,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7274 states. [2018-11-12 16:24:29,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7274 to 7167. [2018-11-12 16:24:29,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7167 states. [2018-11-12 16:24:29,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7167 states to 7167 states and 10519 transitions. [2018-11-12 16:24:29,231 INFO L78 Accepts]: Start accepts. Automaton has 7167 states and 10519 transitions. Word has length 89 [2018-11-12 16:24:29,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:24:29,232 INFO L480 AbstractCegarLoop]: Abstraction has 7167 states and 10519 transitions. [2018-11-12 16:24:29,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 16:24:29,232 INFO L276 IsEmpty]: Start isEmpty. Operand 7167 states and 10519 transitions. [2018-11-12 16:24:29,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-11-12 16:24:29,243 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:24:29,243 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:24:29,244 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:24:29,244 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:24:29,244 INFO L82 PathProgramCache]: Analyzing trace with hash 223981530, now seen corresponding path program 1 times [2018-11-12 16:24:29,244 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:24:29,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:24:29,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:24:29,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:24:29,246 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:24:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:24:29,466 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:24:29,466 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:24:29,466 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 16:24:29,466 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:24:29,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 16:24:29,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 16:24:29,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 16:24:29,468 INFO L87 Difference]: Start difference. First operand 7167 states and 10519 transitions. Second operand 3 states. [2018-11-12 16:24:37,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:24:37,118 INFO L93 Difference]: Finished difference Result 20977 states and 31905 transitions. [2018-11-12 16:24:37,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 16:24:37,118 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2018-11-12 16:24:37,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:24:37,190 INFO L225 Difference]: With dead ends: 20977 [2018-11-12 16:24:37,190 INFO L226 Difference]: Without dead ends: 13816 [2018-11-12 16:24:37,233 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 16:24:37,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13816 states. [2018-11-12 16:24:37,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13816 to 13793. [2018-11-12 16:24:37,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13793 states. [2018-11-12 16:24:37,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13793 states to 13793 states and 18572 transitions. [2018-11-12 16:24:37,553 INFO L78 Accepts]: Start accepts. Automaton has 13793 states and 18572 transitions. Word has length 133 [2018-11-12 16:24:37,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:24:37,554 INFO L480 AbstractCegarLoop]: Abstraction has 13793 states and 18572 transitions. [2018-11-12 16:24:37,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 16:24:37,555 INFO L276 IsEmpty]: Start isEmpty. Operand 13793 states and 18572 transitions. [2018-11-12 16:24:37,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-12 16:24:37,559 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:24:37,559 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:24:37,560 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:24:37,560 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:24:37,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1813117700, now seen corresponding path program 1 times [2018-11-12 16:24:37,560 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:24:37,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:24:37,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:24:37,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:24:37,566 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:24:37,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:24:37,744 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:24:37,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:24:37,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 16:24:37,745 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:24:37,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 16:24:37,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 16:24:37,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 16:24:37,746 INFO L87 Difference]: Start difference. First operand 13793 states and 18572 transitions. Second operand 3 states. [2018-11-12 16:24:45,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:24:45,455 INFO L93 Difference]: Finished difference Result 34265 states and 48815 transitions. [2018-11-12 16:24:45,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 16:24:45,457 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2018-11-12 16:24:45,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:24:45,537 INFO L225 Difference]: With dead ends: 34265 [2018-11-12 16:24:45,538 INFO L226 Difference]: Without dead ends: 20478 [2018-11-12 16:24:45,593 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 16:24:45,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20478 states. [2018-11-12 16:24:46,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20478 to 20448. [2018-11-12 16:24:46,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20448 states. [2018-11-12 16:24:46,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20448 states to 20448 states and 27147 transitions. [2018-11-12 16:24:46,193 INFO L78 Accepts]: Start accepts. Automaton has 20448 states and 27147 transitions. Word has length 138 [2018-11-12 16:24:46,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:24:46,193 INFO L480 AbstractCegarLoop]: Abstraction has 20448 states and 27147 transitions. [2018-11-12 16:24:46,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 16:24:46,194 INFO L276 IsEmpty]: Start isEmpty. Operand 20448 states and 27147 transitions. [2018-11-12 16:24:46,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-11-12 16:24:46,197 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:24:46,198 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:24:46,198 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:24:46,198 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:24:46,198 INFO L82 PathProgramCache]: Analyzing trace with hash -599345729, now seen corresponding path program 1 times [2018-11-12 16:24:46,199 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:24:46,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:24:46,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:24:46,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:24:46,205 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:24:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:24:46,513 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:24:46,888 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 88 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:24:46,888 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:24:46,889 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:24:46,890 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 209 with the following transitions: [2018-11-12 16:24:46,892 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2663], [2665], [2668], [2676], [2684], [2692], [2700], [2708], [2716], [2724], [2732], [2740], [2748], [2756], [2764], [2772], [2780], [2788], [2796], [2804], [2812], [2820], [2828], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3120], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3358], [3363], [3365], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-12 16:24:46,977 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:24:46,977 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:24:47,834 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:24:47,836 INFO L272 AbstractInterpreter]: Visited 124 different actions 124 times. Never merged. Never widened. Performed 2844 root evaluator evaluations with a maximum evaluation depth of 6. Performed 2844 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 26 variables. [2018-11-12 16:24:47,883 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:24:47,883 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:24:48,718 INFO L227 lantSequenceWeakener]: Weakened 184 states. On average, predicates are now at 70.93% of their original sizes. [2018-11-12 16:24:48,719 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:24:49,035 INFO L415 sIntCurrentIteration]: We unified 207 AI predicates to 207 [2018-11-12 16:24:49,035 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:24:49,036 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:24:49,036 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-12 16:24:49,037 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:24:49,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-12 16:24:49,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-12 16:24:49,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-11-12 16:24:49,038 INFO L87 Difference]: Start difference. First operand 20448 states and 27147 transitions. Second operand 11 states. [2018-11-12 16:25:05,245 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:26:41,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:26:41,111 INFO L93 Difference]: Finished difference Result 41699 states and 55154 transitions. [2018-11-12 16:26:41,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-12 16:26:41,111 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 208 [2018-11-12 16:26:41,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:26:41,200 INFO L225 Difference]: With dead ends: 41699 [2018-11-12 16:26:41,200 INFO L226 Difference]: Without dead ends: 21257 [2018-11-12 16:26:41,245 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 212 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2018-11-12 16:26:41,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21257 states. [2018-11-12 16:26:42,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21257 to 21252. [2018-11-12 16:26:42,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21252 states. [2018-11-12 16:26:42,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21252 states to 21252 states and 27962 transitions. [2018-11-12 16:26:42,658 INFO L78 Accepts]: Start accepts. Automaton has 21252 states and 27962 transitions. Word has length 208 [2018-11-12 16:26:42,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:26:42,659 INFO L480 AbstractCegarLoop]: Abstraction has 21252 states and 27962 transitions. [2018-11-12 16:26:42,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-12 16:26:42,659 INFO L276 IsEmpty]: Start isEmpty. Operand 21252 states and 27962 transitions. [2018-11-12 16:26:42,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2018-11-12 16:26:42,666 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:26:42,667 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:26:42,667 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:26:42,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:26:42,668 INFO L82 PathProgramCache]: Analyzing trace with hash 2049146175, now seen corresponding path program 1 times [2018-11-12 16:26:42,668 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:26:42,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:26:42,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:26:42,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:26:42,669 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:26:42,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:26:43,011 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:26:43,118 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 21 proven. 23 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-11-12 16:26:43,118 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:26:43,118 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:26:43,118 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 312 with the following transitions: [2018-11-12 16:26:43,120 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2663], [2665], [2668], [2676], [2684], [2692], [2700], [2708], [2716], [2724], [2732], [2740], [2748], [2756], [2764], [2772], [2780], [2788], [2796], [2804], [2812], [2820], [2828], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3409], [3410], [3414], [3425], [3429], [3440], [3451], [3455], [3459], [3463], [3467], [3471], [3475], [3479], [3483], [3487], [3498], [3502], [3506], [3517], [3521], [3525], [3529], [3533], [3537], [3541], [3545], [3556], [3560], [3564], [3568], [3572], [3576], [3580], [3591], [3594], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-12 16:26:43,127 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:26:43,127 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:26:44,093 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:26:44,093 INFO L272 AbstractInterpreter]: Visited 172 different actions 503 times. Merged at 5 different actions 9 times. Never widened. Performed 7057 root evaluator evaluations with a maximum evaluation depth of 6. Performed 7057 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-12 16:26:44,132 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:26:44,132 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:26:44,745 INFO L227 lantSequenceWeakener]: Weakened 308 states. On average, predicates are now at 70.75% of their original sizes. [2018-11-12 16:26:44,745 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:26:45,718 INFO L415 sIntCurrentIteration]: We unified 310 AI predicates to 310 [2018-11-12 16:26:45,718 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:26:45,718 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:26:45,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-12 16:26:45,719 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:26:45,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-12 16:26:45,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-12 16:26:45,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-12 16:26:45,720 INFO L87 Difference]: Start difference. First operand 21252 states and 27962 transitions. Second operand 11 states. [2018-11-12 16:26:53,428 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-12 16:26:56,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-12 16:26:56,869 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 16:26:56,874 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 16:26:56,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 04:26:56 BoogieIcfgContainer [2018-11-12 16:26:56,874 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 16:26:56,875 INFO L168 Benchmark]: Toolchain (without parser) took 198505.11 ms. Allocated memory was 1.5 GB in the beginning and 5.9 GB in the end (delta: 4.4 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -190.6 MB). Peak memory consumption was 4.2 GB. Max. memory is 7.1 GB. [2018-11-12 16:26:56,877 INFO L168 Benchmark]: CDTParser took 0.25 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 16:26:56,879 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2606.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-11-12 16:26:56,879 INFO L168 Benchmark]: Boogie Procedure Inliner took 374.23 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 799.0 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.6 MB. Max. memory is 7.1 GB. [2018-11-12 16:26:56,880 INFO L168 Benchmark]: Boogie Preprocessor took 304.03 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 43.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 7.1 GB. [2018-11-12 16:26:56,881 INFO L168 Benchmark]: RCFGBuilder took 11910.39 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 162.0 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 17.8 MB). Peak memory consumption was 656.5 MB. Max. memory is 7.1 GB. [2018-11-12 16:26:56,882 INFO L168 Benchmark]: TraceAbstraction took 183303.21 ms. Allocated memory was 2.5 GB in the beginning and 5.9 GB in the end (delta: 3.4 GB). Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 594.6 MB). Peak memory consumption was 4.0 GB. Max. memory is 7.1 GB. [2018-11-12 16:26:56,887 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 2606.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 374.23 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 799.0 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 304.03 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 43.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11910.39 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 162.0 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 17.8 MB). Peak memory consumption was 656.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 183303.21 ms. Allocated memory was 2.5 GB in the beginning and 5.9 GB in the end (delta: 3.4 GB). Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 594.6 MB). Peak memory consumption was 4.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 42]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 42). Cancelled while BasicCegarLoop was constructing difference of abstraction (21252states) and FLOYD_HOARE automaton (currently 13 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (2105 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 183.2s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 172.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5749 SDtfs, 13839 SDslu, 3309 SDs, 0 SdLazy, 28869 SolverSat, 5209 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 89.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 563 GetRequests, 514 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21252occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.0s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9977906896736263 AbsIntWeakeningRatio, 0.1102514506769826 AbsIntAvgWeakeningVarsNumRemoved, 12.903288201160542 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 1037 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 983 NumberOfCodeBlocks, 983 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 976 ConstructedInterpolants, 0 QuantifiedInterpolants, 593131 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 255/280 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown