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_label32_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 19:21:59,762 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 19:21:59,764 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 19:21:59,780 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 19:21:59,781 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 19:21:59,783 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 19:21:59,784 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 19:21:59,787 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 19:21:59,790 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 19:21:59,791 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 19:21:59,793 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 19:21:59,793 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 19:21:59,795 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 19:21:59,796 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 19:21:59,797 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 19:21:59,798 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 19:21:59,799 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 19:21:59,800 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 19:21:59,802 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 19:21:59,804 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 19:21:59,805 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 19:21:59,807 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 19:21:59,811 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 19:21:59,812 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 19:21:59,812 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 19:21:59,813 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 19:21:59,817 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 19:21:59,818 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 19:21:59,818 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 19:21:59,823 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 19:21:59,823 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 19:21:59,824 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 19:21:59,824 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 19:21:59,824 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 19:21:59,827 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 19:21:59,828 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 19:21:59,828 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 19:21:59,858 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 19:21:59,859 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 19:21:59,860 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 19:21:59,860 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 19:21:59,860 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 19:21:59,860 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 19:21:59,861 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 19:21:59,861 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 19:21:59,861 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 19:21:59,861 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 19:21:59,861 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 19:21:59,862 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 19:21:59,862 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 19:21:59,863 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 19:21:59,863 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 19:21:59,863 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 19:21:59,863 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 19:21:59,863 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 19:21:59,864 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 19:21:59,864 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 19:21:59,864 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 19:21:59,864 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 19:21:59,865 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 19:21:59,865 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 19:21:59,865 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 19:21:59,865 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 19:21:59,865 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 19:21:59,866 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 19:21:59,866 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 19:21:59,866 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 19:21:59,866 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 19:21:59,866 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 19:21:59,867 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 19:21:59,867 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 19:21:59,867 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 19:21:59,927 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 19:21:59,945 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 19:21:59,949 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 19:21:59,951 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 19:21:59,952 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 19:21:59,952 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label32_true-unreach-call.c [2018-11-12 19:22:00,020 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/088263bb7/40f0ad9246fe4d4eae8214da523e422f/FLAGfbd8ef22c [2018-11-12 19:22:00,670 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 19:22:00,671 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label32_true-unreach-call.c [2018-11-12 19:22:00,691 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/088263bb7/40f0ad9246fe4d4eae8214da523e422f/FLAGfbd8ef22c [2018-11-12 19:22:00,713 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/088263bb7/40f0ad9246fe4d4eae8214da523e422f [2018-11-12 19:22:00,723 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 19:22:00,725 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 19:22:00,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 19:22:00,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 19:22:00,730 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 19:22:00,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:22:00" (1/1) ... [2018-11-12 19:22:00,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425d5bf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:00, skipping insertion in model container [2018-11-12 19:22:00,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:22:00" (1/1) ... [2018-11-12 19:22:00,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 19:22:00,836 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 19:22:01,623 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:22:01,628 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 19:22:01,897 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:22:01,922 INFO L193 MainTranslator]: Completed translation [2018-11-12 19:22:01,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:01 WrapperNode [2018-11-12 19:22:01,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 19:22:01,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 19:22:01,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 19:22:01,924 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 19:22:02,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:01" (1/1) ... [2018-11-12 19:22:02,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:01" (1/1) ... [2018-11-12 19:22:02,155 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 19:22:02,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 19:22:02,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 19:22:02,156 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 19:22:02,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:01" (1/1) ... [2018-11-12 19:22:02,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:01" (1/1) ... [2018-11-12 19:22:02,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:01" (1/1) ... [2018-11-12 19:22:02,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:01" (1/1) ... [2018-11-12 19:22:02,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:01" (1/1) ... [2018-11-12 19:22:02,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:01" (1/1) ... [2018-11-12 19:22:02,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:01" (1/1) ... [2018-11-12 19:22:02,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 19:22:02,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 19:22:02,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 19:22:02,300 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 19:22:02,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:01" (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 19:22:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 19:22:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 19:22:02,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 19:22:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 19:22:02,379 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 19:22:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 19:22:02,379 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 19:22:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 19:22:02,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 19:22:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 19:22:02,380 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 19:22:08,504 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 19:22:08,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:22:08 BoogieIcfgContainer [2018-11-12 19:22:08,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 19:22:08,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 19:22:08,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 19:22:08,510 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 19:22:08,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:22:00" (1/3) ... [2018-11-12 19:22:08,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c2ee1ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:22:08, skipping insertion in model container [2018-11-12 19:22:08,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:22:01" (2/3) ... [2018-11-12 19:22:08,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c2ee1ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:22:08, skipping insertion in model container [2018-11-12 19:22:08,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:22:08" (3/3) ... [2018-11-12 19:22:08,514 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label32_true-unreach-call.c [2018-11-12 19:22:08,524 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 19:22:08,534 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 19:22:08,552 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 19:22:08,592 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 19:22:08,593 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 19:22:08,593 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 19:22:08,593 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 19:22:08,593 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 19:22:08,593 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 19:22:08,594 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 19:22:08,594 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 19:22:08,635 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-12 19:22:08,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-11-12 19:22:08,645 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:22:08,647 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:22:08,649 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:22:08,655 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:22:08,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1067994659, now seen corresponding path program 1 times [2018-11-12 19:22:08,659 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:22:08,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:08,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:22:08,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:08,711 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:22:08,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:22:09,212 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:22:09,336 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 19:22:09,338 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:22:09,339 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 19:22:09,339 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:22:09,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 19:22:09,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 19:22:09,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:22:09,366 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-11-12 19:22:12,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:22:12,675 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-11-12 19:22:12,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 19:22:12,681 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2018-11-12 19:22:12,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:22:12,706 INFO L225 Difference]: With dead ends: 1156 [2018-11-12 19:22:12,706 INFO L226 Difference]: Without dead ends: 744 [2018-11-12 19:22:12,717 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 19:22:12,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-11-12 19:22:12,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-11-12 19:22:12,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-12 19:22:12,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1355 transitions. [2018-11-12 19:22:12,829 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1355 transitions. Word has length 55 [2018-11-12 19:22:12,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:22:12,830 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1355 transitions. [2018-11-12 19:22:12,831 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 19:22:12,831 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1355 transitions. [2018-11-12 19:22:12,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-11-12 19:22:12,838 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:22:12,839 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 19:22:12,839 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:22:12,840 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:22:12,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1474010228, now seen corresponding path program 1 times [2018-11-12 19:22:12,840 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:22:12,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:12,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:22:12,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:12,842 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:22:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:22:13,201 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:22:13,248 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:22:13,248 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:22:13,249 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 19:22:13,249 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:22:13,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 19:22:13,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 19:22:13,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 19:22:13,252 INFO L87 Difference]: Start difference. First operand 744 states and 1355 transitions. Second operand 5 states. [2018-11-12 19:22:19,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:22:19,107 INFO L93 Difference]: Finished difference Result 2194 states and 4083 transitions. [2018-11-12 19:22:19,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:22:19,108 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 125 [2018-11-12 19:22:19,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:22:19,121 INFO L225 Difference]: With dead ends: 2194 [2018-11-12 19:22:19,122 INFO L226 Difference]: Without dead ends: 1456 [2018-11-12 19:22:19,125 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 19:22:19,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2018-11-12 19:22:19,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1436. [2018-11-12 19:22:19,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1436 states. [2018-11-12 19:22:19,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 2550 transitions. [2018-11-12 19:22:19,207 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 2550 transitions. Word has length 125 [2018-11-12 19:22:19,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:22:19,208 INFO L480 AbstractCegarLoop]: Abstraction has 1436 states and 2550 transitions. [2018-11-12 19:22:19,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 19:22:19,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 2550 transitions. [2018-11-12 19:22:19,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-11-12 19:22:19,213 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:22:19,213 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:22:19,214 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:22:19,214 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:22:19,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1726683851, now seen corresponding path program 1 times [2018-11-12 19:22:19,214 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:22:19,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:19,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:22:19,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:19,216 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:22:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:22:19,468 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:22:19,468 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:22:19,468 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:22:19,469 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:22:19,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:22:19,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:22:19,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:22:19,470 INFO L87 Difference]: Start difference. First operand 1436 states and 2550 transitions. Second operand 6 states. [2018-11-12 19:22:24,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:22:24,062 INFO L93 Difference]: Finished difference Result 3936 states and 7024 transitions. [2018-11-12 19:22:24,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:22:24,064 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2018-11-12 19:22:24,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:22:24,086 INFO L225 Difference]: With dead ends: 3936 [2018-11-12 19:22:24,086 INFO L226 Difference]: Without dead ends: 2506 [2018-11-12 19:22:24,096 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 19:22:24,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2018-11-12 19:22:24,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2479. [2018-11-12 19:22:24,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2479 states. [2018-11-12 19:22:24,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2479 states to 2479 states and 3996 transitions. [2018-11-12 19:22:24,194 INFO L78 Accepts]: Start accepts. Automaton has 2479 states and 3996 transitions. Word has length 154 [2018-11-12 19:22:24,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:22:24,195 INFO L480 AbstractCegarLoop]: Abstraction has 2479 states and 3996 transitions. [2018-11-12 19:22:24,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:22:24,196 INFO L276 IsEmpty]: Start isEmpty. Operand 2479 states and 3996 transitions. [2018-11-12 19:22:24,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-11-12 19:22:24,202 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:22:24,202 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:22:24,202 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:22:24,204 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:22:24,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1509581241, now seen corresponding path program 1 times [2018-11-12 19:22:24,204 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:22:24,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:24,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:22:24,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:24,206 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:22:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:22:24,484 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:22:24,484 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:22:24,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:22:24,485 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:22:24,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:22:24,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:22:24,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:22:24,486 INFO L87 Difference]: Start difference. First operand 2479 states and 3996 transitions. Second operand 6 states. [2018-11-12 19:22:27,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:22:27,644 INFO L93 Difference]: Finished difference Result 6050 states and 9896 transitions. [2018-11-12 19:22:27,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:22:27,645 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2018-11-12 19:22:27,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:22:27,668 INFO L225 Difference]: With dead ends: 6050 [2018-11-12 19:22:27,668 INFO L226 Difference]: Without dead ends: 3577 [2018-11-12 19:22:27,680 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 19:22:27,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3577 states. [2018-11-12 19:22:27,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3577 to 3545. [2018-11-12 19:22:27,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3545 states. [2018-11-12 19:22:27,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3545 states to 3545 states and 4965 transitions. [2018-11-12 19:22:27,774 INFO L78 Accepts]: Start accepts. Automaton has 3545 states and 4965 transitions. Word has length 172 [2018-11-12 19:22:27,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:22:27,775 INFO L480 AbstractCegarLoop]: Abstraction has 3545 states and 4965 transitions. [2018-11-12 19:22:27,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:22:27,775 INFO L276 IsEmpty]: Start isEmpty. Operand 3545 states and 4965 transitions. [2018-11-12 19:22:27,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2018-11-12 19:22:27,780 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:22:27,780 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:22:27,781 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:22:27,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:22:27,781 INFO L82 PathProgramCache]: Analyzing trace with hash -2114046403, now seen corresponding path program 1 times [2018-11-12 19:22:27,781 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:22:27,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:27,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:22:27,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:22:27,783 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:22:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:22:28,126 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 115 proven. 46 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 19:22:28,127 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:22:28,127 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:22:28,128 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 256 with the following transitions: [2018-11-12 19:22:28,130 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [519], [521], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [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], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:22:28,193 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:22:28,193 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:22:29,045 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:22:29,047 INFO L272 AbstractInterpreter]: Visited 135 different actions 135 times. Never merged. Never widened. Performed 2352 root evaluator evaluations with a maximum evaluation depth of 6. Performed 2352 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 24 variables. [2018-11-12 19:22:29,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:22:29,081 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:22:30,061 INFO L227 lantSequenceWeakener]: Weakened 233 states. On average, predicates are now at 78.1% of their original sizes. [2018-11-12 19:22:30,062 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:22:31,659 INFO L415 sIntCurrentIteration]: We unified 254 AI predicates to 254 [2018-11-12 19:22:31,660 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:22:31,661 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:22:31,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2018-11-12 19:22:31,661 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:22:31,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-12 19:22:31,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-12 19:22:31,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-11-12 19:22:31,663 INFO L87 Difference]: Start difference. First operand 3545 states and 4965 transitions. Second operand 11 states. [2018-11-12 19:22:37,514 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:23:02,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:23:02,740 INFO L93 Difference]: Finished difference Result 7427 states and 10353 transitions. [2018-11-12 19:23:02,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-12 19:23:02,740 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 255 [2018-11-12 19:23:02,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:23:02,758 INFO L225 Difference]: With dead ends: 7427 [2018-11-12 19:23:02,758 INFO L226 Difference]: Without dead ends: 3888 [2018-11-12 19:23:02,770 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 259 GetRequests, 209 SyntacticMatches, 36 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2018-11-12 19:23:02,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3888 states. [2018-11-12 19:23:02,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3888 to 3883. [2018-11-12 19:23:02,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3883 states. [2018-11-12 19:23:02,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3883 states to 3883 states and 5311 transitions. [2018-11-12 19:23:02,860 INFO L78 Accepts]: Start accepts. Automaton has 3883 states and 5311 transitions. Word has length 255 [2018-11-12 19:23:02,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:23:02,860 INFO L480 AbstractCegarLoop]: Abstraction has 3883 states and 5311 transitions. [2018-11-12 19:23:02,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-12 19:23:02,861 INFO L276 IsEmpty]: Start isEmpty. Operand 3883 states and 5311 transitions. [2018-11-12 19:23:02,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2018-11-12 19:23:02,869 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:23:02,869 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:23:02,870 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:23:02,870 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:23:02,870 INFO L82 PathProgramCache]: Analyzing trace with hash -877306342, now seen corresponding path program 1 times [2018-11-12 19:23:02,871 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:23:02,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:23:02,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:23:02,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:23:02,872 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:23:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:23:03,214 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-11-12 19:23:03,506 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 216 proven. 115 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-11-12 19:23:03,506 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:23:03,506 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:23:03,507 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 348 with the following transitions: [2018-11-12 19:23:03,507 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [519], [521], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [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], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:23:03,514 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:23:03,514 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:23:04,123 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:23:04,757 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:23:04,757 INFO L272 AbstractInterpreter]: Visited 139 different actions 404 times. Merged at 5 different actions 9 times. Never widened. Performed 5835 root evaluator evaluations with a maximum evaluation depth of 6. Performed 5835 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 19:23:04,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:23:04,794 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:23:05,717 INFO L227 lantSequenceWeakener]: Weakened 80 states. On average, predicates are now at 77.5% of their original sizes. [2018-11-12 19:23:05,717 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:23:07,660 INFO L415 sIntCurrentIteration]: We unified 346 AI predicates to 346 [2018-11-12 19:23:07,661 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:23:07,661 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:23:07,662 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [7] total 22 [2018-11-12 19:23:07,662 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:23:07,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-12 19:23:07,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-12 19:23:07,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2018-11-12 19:23:07,664 INFO L87 Difference]: Start difference. First operand 3883 states and 5311 transitions. Second operand 17 states. [2018-11-12 19:23:48,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:23:48,848 INFO L93 Difference]: Finished difference Result 8610 states and 11687 transitions. [2018-11-12 19:23:48,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-12 19:23:48,848 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 347 [2018-11-12 19:23:48,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:23:48,869 INFO L225 Difference]: With dead ends: 8610 [2018-11-12 19:23:48,869 INFO L226 Difference]: Without dead ends: 5071 [2018-11-12 19:23:48,882 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 356 GetRequests, 316 SyntacticMatches, 15 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=147, Invalid=555, Unknown=0, NotChecked=0, Total=702 [2018-11-12 19:23:48,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5071 states. [2018-11-12 19:23:48,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5071 to 4839. [2018-11-12 19:23:48,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4839 states. [2018-11-12 19:23:49,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4839 states to 4839 states and 6322 transitions. [2018-11-12 19:23:49,008 INFO L78 Accepts]: Start accepts. Automaton has 4839 states and 6322 transitions. Word has length 347 [2018-11-12 19:23:49,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:23:49,008 INFO L480 AbstractCegarLoop]: Abstraction has 4839 states and 6322 transitions. [2018-11-12 19:23:49,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-12 19:23:49,009 INFO L276 IsEmpty]: Start isEmpty. Operand 4839 states and 6322 transitions. [2018-11-12 19:23:49,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2018-11-12 19:23:49,019 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:23:49,020 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:23:49,020 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:23:49,020 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:23:49,021 INFO L82 PathProgramCache]: Analyzing trace with hash 987635362, now seen corresponding path program 1 times [2018-11-12 19:23:49,021 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:23:49,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:23:49,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:23:49,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:23:49,022 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:23:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:23:49,861 WARN L179 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-11-12 19:23:50,731 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 275 proven. 69 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-11-12 19:23:50,732 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:23:50,732 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:23:50,732 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 384 with the following transitions: [2018-11-12 19:23:50,734 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [519], [521], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [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], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [905], [909], [912], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:23:50,738 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:23:50,738 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:23:50,874 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:23:51,794 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:23:51,795 INFO L272 AbstractInterpreter]: Visited 139 different actions 404 times. Merged at 5 different actions 9 times. Never widened. Performed 7346 root evaluator evaluations with a maximum evaluation depth of 6. Performed 7346 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 19:23:51,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:23:51,834 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:23:52,489 INFO L227 lantSequenceWeakener]: Weakened 80 states. On average, predicates are now at 77.5% of their original sizes. [2018-11-12 19:23:52,489 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:23:53,014 INFO L415 sIntCurrentIteration]: We unified 382 AI predicates to 382 [2018-11-12 19:23:53,015 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:23:53,015 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:23:53,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [13] total 30 [2018-11-12 19:23:53,016 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:23:53,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-12 19:23:53,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-12 19:23:53,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2018-11-12 19:23:53,018 INFO L87 Difference]: Start difference. First operand 4839 states and 6322 transitions. Second operand 19 states. [2018-11-12 19:24:49,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:24:49,518 INFO L93 Difference]: Finished difference Result 10731 states and 14097 transitions. [2018-11-12 19:24:49,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-12 19:24:49,518 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 383 [2018-11-12 19:24:49,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:24:49,544 INFO L225 Difference]: With dead ends: 10731 [2018-11-12 19:24:49,545 INFO L226 Difference]: Without dead ends: 6526 [2018-11-12 19:24:49,559 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 397 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=237, Invalid=885, Unknown=0, NotChecked=0, Total=1122 [2018-11-12 19:24:49,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6526 states. [2018-11-12 19:24:49,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6526 to 5543. [2018-11-12 19:24:49,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5543 states. [2018-11-12 19:24:49,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5543 states to 5543 states and 7097 transitions. [2018-11-12 19:24:49,695 INFO L78 Accepts]: Start accepts. Automaton has 5543 states and 7097 transitions. Word has length 383 [2018-11-12 19:24:49,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:24:49,696 INFO L480 AbstractCegarLoop]: Abstraction has 5543 states and 7097 transitions. [2018-11-12 19:24:49,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-12 19:24:49,696 INFO L276 IsEmpty]: Start isEmpty. Operand 5543 states and 7097 transitions. [2018-11-12 19:24:49,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2018-11-12 19:24:49,714 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:24:49,714 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 19:24:49,715 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:24:49,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:24:49,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1298493058, now seen corresponding path program 1 times [2018-11-12 19:24:49,715 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:24:49,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:24:49,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:24:49,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:24:49,717 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:24:49,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:24:50,299 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 236 proven. 46 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2018-11-12 19:24:50,299 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:24:50,299 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:24:50,300 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 496 with the following transitions: [2018-11-12 19:24:50,300 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [519], [521], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [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], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [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 19:24:50,307 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:24:50,307 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:24:51,378 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:24:51,378 INFO L272 AbstractInterpreter]: Visited 249 different actions 492 times. Merged at 5 different actions 5 times. Never widened. Performed 6341 root evaluator evaluations with a maximum evaluation depth of 6. Performed 6341 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 19:24:51,384 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:24:51,384 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:24:51,921 INFO L227 lantSequenceWeakener]: Weakened 123 states. On average, predicates are now at 79.04% of their original sizes. [2018-11-12 19:24:51,922 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:24:53,038 INFO L415 sIntCurrentIteration]: We unified 494 AI predicates to 494 [2018-11-12 19:24:53,039 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:24:53,039 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:24:53,039 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [5] total 25 [2018-11-12 19:24:53,039 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:24:53,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-12 19:24:53,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-12 19:24:53,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2018-11-12 19:24:53,041 INFO L87 Difference]: Start difference. First operand 5543 states and 7097 transitions. Second operand 22 states. [2018-11-12 19:24:55,757 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:25:29,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:25:29,976 INFO L93 Difference]: Finished difference Result 10431 states and 13701 transitions. [2018-11-12 19:25:29,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-11-12 19:25:29,977 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 495 [2018-11-12 19:25:29,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:25:29,999 INFO L225 Difference]: With dead ends: 10431 [2018-11-12 19:25:30,000 INFO L226 Difference]: Without dead ends: 6179 [2018-11-12 19:25:30,014 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 510 GetRequests, 431 SyntacticMatches, 43 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1098 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=264, Invalid=1142, Unknown=0, NotChecked=0, Total=1406 [2018-11-12 19:25:30,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6179 states. [2018-11-12 19:25:30,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6179 to 6174. [2018-11-12 19:25:30,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6174 states. [2018-11-12 19:25:30,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6174 states to 6174 states and 7766 transitions. [2018-11-12 19:25:30,144 INFO L78 Accepts]: Start accepts. Automaton has 6174 states and 7766 transitions. Word has length 495 [2018-11-12 19:25:30,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:25:30,145 INFO L480 AbstractCegarLoop]: Abstraction has 6174 states and 7766 transitions. [2018-11-12 19:25:30,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-12 19:25:30,149 INFO L276 IsEmpty]: Start isEmpty. Operand 6174 states and 7766 transitions. [2018-11-12 19:25:30,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2018-11-12 19:25:30,168 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:25:30,168 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 19:25:30,169 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:25:30,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:25:30,169 INFO L82 PathProgramCache]: Analyzing trace with hash -991597806, now seen corresponding path program 1 times [2018-11-12 19:25:30,169 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:25:30,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:25:30,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:25:30,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:25:30,171 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:25:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:25:31,275 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 236 proven. 46 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2018-11-12 19:25:31,275 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:25:31,275 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:25:31,276 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 504 with the following transitions: [2018-11-12 19:25:31,276 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [519], [521], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [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], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [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 19:25:31,281 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:25:31,282 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:25:33,693 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:25:33,694 INFO L272 AbstractInterpreter]: Visited 257 different actions 2265 times. Merged at 5 different actions 40 times. Widened at 1 different actions 4 times. Performed 40187 root evaluator evaluations with a maximum evaluation depth of 6. Performed 40187 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 19:25:33,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:25:33,700 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:25:34,334 INFO L227 lantSequenceWeakener]: Weakened 150 states. On average, predicates are now at 78.7% of their original sizes. [2018-11-12 19:25:34,334 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:25:34,741 INFO L415 sIntCurrentIteration]: We unified 502 AI predicates to 502 [2018-11-12 19:25:34,742 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:25:34,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:25:34,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [5] total 27 [2018-11-12 19:25:34,743 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:25:34,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-12 19:25:34,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-12 19:25:34,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2018-11-12 19:25:34,744 INFO L87 Difference]: Start difference. First operand 6174 states and 7766 transitions. Second operand 24 states. [2018-11-12 19:25:37,593 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-12 19:25:40,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-12 19:25:40,867 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 19:25:40,872 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 19:25:40,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 07:25:40 BoogieIcfgContainer [2018-11-12 19:25:40,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 19:25:40,873 INFO L168 Benchmark]: Toolchain (without parser) took 220149.01 ms. Allocated memory was 1.5 GB in the beginning and 4.9 GB in the end (delta: 3.4 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -171.3 MB). Peak memory consumption was 3.2 GB. Max. memory is 7.1 GB. [2018-11-12 19:25:40,874 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 19:25:40,875 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1197.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-11-12 19:25:40,875 INFO L168 Benchmark]: Boogie Procedure Inliner took 231.10 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 758.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -867.8 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-11-12 19:25:40,876 INFO L168 Benchmark]: Boogie Preprocessor took 144.28 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 19:25:40,877 INFO L168 Benchmark]: RCFGBuilder took 6205.77 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 249.3 MB). Peak memory consumption was 249.3 MB. Max. memory is 7.1 GB. [2018-11-12 19:25:40,878 INFO L168 Benchmark]: TraceAbstraction took 212365.75 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 1.6 GB in the end (delta: 362.7 MB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-11-12 19:25:40,882 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1197.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 231.10 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 758.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -867.8 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 144.28 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 6205.77 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 249.3 MB). Peak memory consumption was 249.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 212365.75 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 1.6 GB in the end (delta: 362.7 MB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 151]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 151). Cancelled while BasicCegarLoop was constructing difference of abstraction (6174states) and FLOYD_HOARE automaton (currently 10 states, 24 states before enhancement),while ReachableStatesComputation was computing reachable states (384 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 212.2s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 189.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2046 SDtfs, 22549 SDslu, 1735 SDs, 0 SdLazy, 30539 SolverSat, 3154 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 75.7s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 2064 GetRequests, 1809 SyntacticMatches, 99 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1921 ImplicationChecksByTransitivity, 7.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6174occurred 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, 5 AbstIntIterations, 5 AbstIntStrong, 0.9976860323334593 AbsIntWeakeningRatio, 0.07785642062689585 AbsIntAvgWeakeningVarsNumRemoved, 10.037411526794742 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 8 MinimizatonAttempts, 1304 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 2489 NumberOfCodeBlocks, 2489 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2480 ConstructedInterpolants, 0 QuantifiedInterpolants, 3460115 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 1604/1926 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown