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.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label20_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 03:34:30,055 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 03:34:30,058 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 03:34:30,075 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 03:34:30,076 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 03:34:30,077 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 03:34:30,079 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 03:34:30,081 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 03:34:30,084 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 03:34:30,085 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 03:34:30,092 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 03:34:30,093 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 03:34:30,094 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 03:34:30,095 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 03:34:30,096 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 03:34:30,099 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 03:34:30,100 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 03:34:30,104 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 03:34:30,106 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 03:34:30,110 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 03:34:30,111 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 03:34:30,114 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 03:34:30,116 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 03:34:30,116 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 03:34:30,117 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 03:34:30,118 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 03:34:30,119 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 03:34:30,119 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 03:34:30,120 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 03:34:30,121 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 03:34:30,121 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 03:34:30,122 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 03:34:30,122 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 03:34:30,122 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 03:34:30,123 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 03:34:30,124 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 03:34:30,124 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 03:34:30,149 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 03:34:30,149 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 03:34:30,151 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 03:34:30,151 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 03:34:30,151 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 03:34:30,152 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 03:34:30,152 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 03:34:30,152 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 03:34:30,152 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 03:34:30,152 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 03:34:30,153 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 03:34:30,153 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 03:34:30,154 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 03:34:30,154 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 03:34:30,154 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 03:34:30,155 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 03:34:30,156 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 03:34:30,156 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 03:34:30,156 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 03:34:30,156 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 03:34:30,156 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 03:34:30,158 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 03:34:30,158 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 03:34:30,158 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 03:34:30,158 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 03:34:30,158 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 03:34:30,159 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 03:34:30,159 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 03:34:30,159 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 03:34:30,159 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 03:34:30,159 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 03:34:30,160 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 03:34:30,160 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 03:34:30,160 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 03:34:30,229 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 03:34:30,245 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 03:34:30,249 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 03:34:30,250 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 03:34:30,251 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 03:34:30,252 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label20_true-unreach-call.c [2018-11-07 03:34:30,313 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/476eec7bb/c33326ce3eff4aac8409e04fca549e7f/FLAG43fe11cb8 [2018-11-07 03:34:30,980 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 03:34:30,982 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label20_true-unreach-call.c [2018-11-07 03:34:31,005 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/476eec7bb/c33326ce3eff4aac8409e04fca549e7f/FLAG43fe11cb8 [2018-11-07 03:34:31,024 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/476eec7bb/c33326ce3eff4aac8409e04fca549e7f [2018-11-07 03:34:31,037 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 03:34:31,039 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 03:34:31,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 03:34:31,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 03:34:31,047 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 03:34:31,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:34:31" (1/1) ... [2018-11-07 03:34:31,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a3310b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:31, skipping insertion in model container [2018-11-07 03:34:31,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:34:31" (1/1) ... [2018-11-07 03:34:31,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 03:34:31,158 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 03:34:32,093 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:34:32,099 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 03:34:32,387 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:34:32,410 INFO L193 MainTranslator]: Completed translation [2018-11-07 03:34:32,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:32 WrapperNode [2018-11-07 03:34:32,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 03:34:32,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 03:34:32,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 03:34:32,412 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 03:34:32,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:32" (1/1) ... [2018-11-07 03:34:32,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:32" (1/1) ... [2018-11-07 03:34:32,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 03:34:32,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 03:34:32,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 03:34:32,651 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 03:34:32,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:32" (1/1) ... [2018-11-07 03:34:32,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:32" (1/1) ... [2018-11-07 03:34:32,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:32" (1/1) ... [2018-11-07 03:34:32,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:32" (1/1) ... [2018-11-07 03:34:32,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:32" (1/1) ... [2018-11-07 03:34:32,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:32" (1/1) ... [2018-11-07 03:34:32,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:32" (1/1) ... [2018-11-07 03:34:32,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 03:34:32,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 03:34:32,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 03:34:32,797 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 03:34:32,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:32" (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 [2018-11-07 03:34:32,868 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 03:34:32,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 03:34:32,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 03:34:32,869 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 03:34:32,869 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 03:34:32,869 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 03:34:32,870 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 03:34:32,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 03:34:32,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 03:34:32,870 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 03:34:32,870 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 03:34:39,624 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 03:34:39,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:34:39 BoogieIcfgContainer [2018-11-07 03:34:39,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 03:34:39,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 03:34:39,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 03:34:39,630 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 03:34:39,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:34:31" (1/3) ... [2018-11-07 03:34:39,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8842dbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:34:39, skipping insertion in model container [2018-11-07 03:34:39,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:32" (2/3) ... [2018-11-07 03:34:39,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8842dbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:34:39, skipping insertion in model container [2018-11-07 03:34:39,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:34:39" (3/3) ... [2018-11-07 03:34:39,634 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label20_true-unreach-call.c [2018-11-07 03:34:39,644 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 03:34:39,653 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 03:34:39,670 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 03:34:39,714 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 03:34:39,714 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 03:34:39,715 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 03:34:39,715 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 03:34:39,715 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 03:34:39,715 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 03:34:39,715 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 03:34:39,716 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 03:34:39,757 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-07 03:34:39,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-07 03:34:39,765 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:34:39,766 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] [2018-11-07 03:34:39,769 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:34:39,775 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:34:39,775 INFO L82 PathProgramCache]: Analyzing trace with hash 410122177, now seen corresponding path program 1 times [2018-11-07 03:34:39,778 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:34:39,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:34:39,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:34:39,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:34:39,827 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:34:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:34:40,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:34:40,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:34:40,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 03:34:40,304 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:34:40,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 03:34:40,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 03:34:40,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 03:34:40,327 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-11-07 03:34:47,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:34:47,318 INFO L93 Difference]: Finished difference Result 1510 states and 2773 transitions. [2018-11-07 03:34:47,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 03:34:47,320 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 49 [2018-11-07 03:34:47,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:34:47,344 INFO L225 Difference]: With dead ends: 1510 [2018-11-07 03:34:47,345 INFO L226 Difference]: Without dead ends: 1066 [2018-11-07 03:34:47,354 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 [2018-11-07 03:34:47,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2018-11-07 03:34:47,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1064. [2018-11-07 03:34:47,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1064 states. [2018-11-07 03:34:47,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1590 transitions. [2018-11-07 03:34:47,484 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1590 transitions. Word has length 49 [2018-11-07 03:34:47,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:34:47,487 INFO L480 AbstractCegarLoop]: Abstraction has 1064 states and 1590 transitions. [2018-11-07 03:34:47,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 03:34:47,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1590 transitions. [2018-11-07 03:34:47,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-11-07 03:34:47,497 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:34:47,497 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:34:47,501 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:34:47,501 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:34:47,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1315680885, now seen corresponding path program 1 times [2018-11-07 03:34:47,502 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:34:47,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:34:47,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:34:47,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:34:47,505 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:34:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:34:47,798 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:34:47,798 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:34:47,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 03:34:47,798 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:34:47,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 03:34:47,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 03:34:47,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 03:34:47,802 INFO L87 Difference]: Start difference. First operand 1064 states and 1590 transitions. Second operand 5 states. [2018-11-07 03:34:56,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:34:56,094 INFO L93 Difference]: Finished difference Result 3340 states and 4979 transitions. [2018-11-07 03:34:56,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:34:56,102 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2018-11-07 03:34:56,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:34:56,119 INFO L225 Difference]: With dead ends: 3340 [2018-11-07 03:34:56,119 INFO L226 Difference]: Without dead ends: 2282 [2018-11-07 03:34:56,126 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-07 03:34:56,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2018-11-07 03:34:56,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 2267. [2018-11-07 03:34:56,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2267 states. [2018-11-07 03:34:56,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2267 states to 2267 states and 3306 transitions. [2018-11-07 03:34:56,222 INFO L78 Accepts]: Start accepts. Automaton has 2267 states and 3306 transitions. Word has length 119 [2018-11-07 03:34:56,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:34:56,223 INFO L480 AbstractCegarLoop]: Abstraction has 2267 states and 3306 transitions. [2018-11-07 03:34:56,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 03:34:56,223 INFO L276 IsEmpty]: Start isEmpty. Operand 2267 states and 3306 transitions. [2018-11-07 03:34:56,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-11-07 03:34:56,233 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:34:56,233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:34:56,237 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:34:56,238 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:34:56,238 INFO L82 PathProgramCache]: Analyzing trace with hash -2016407952, now seen corresponding path program 1 times [2018-11-07 03:34:56,238 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:34:56,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:34:56,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:34:56,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:34:56,240 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:34:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:34:56,504 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:34:56,504 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:34:56,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:34:56,504 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:34:56,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:34:56,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:34:56,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:34:56,506 INFO L87 Difference]: Start difference. First operand 2267 states and 3306 transitions. Second operand 6 states. [2018-11-07 03:35:01,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:35:01,684 INFO L93 Difference]: Finished difference Result 6382 states and 9947 transitions. [2018-11-07 03:35:01,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:35:01,684 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-11-07 03:35:01,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:35:01,714 INFO L225 Difference]: With dead ends: 6382 [2018-11-07 03:35:01,714 INFO L226 Difference]: Without dead ends: 4430 [2018-11-07 03:35:01,730 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 [2018-11-07 03:35:01,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4430 states. [2018-11-07 03:35:01,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4430 to 4375. [2018-11-07 03:35:01,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4375 states. [2018-11-07 03:35:01,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4375 states to 4375 states and 5974 transitions. [2018-11-07 03:35:01,853 INFO L78 Accepts]: Start accepts. Automaton has 4375 states and 5974 transitions. Word has length 124 [2018-11-07 03:35:01,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:35:01,854 INFO L480 AbstractCegarLoop]: Abstraction has 4375 states and 5974 transitions. [2018-11-07 03:35:01,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:35:01,854 INFO L276 IsEmpty]: Start isEmpty. Operand 4375 states and 5974 transitions. [2018-11-07 03:35:01,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-11-07 03:35:01,857 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:35:01,857 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:35:01,858 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:35:01,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:35:01,858 INFO L82 PathProgramCache]: Analyzing trace with hash 2021875324, now seen corresponding path program 1 times [2018-11-07 03:35:01,858 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:35:01,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:35:01,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:35:01,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:35:01,860 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:35:01,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:35:02,094 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:35:02,095 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:35:02,095 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 03:35:02,095 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:35:02,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 03:35:02,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 03:35:02,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 03:35:02,096 INFO L87 Difference]: Start difference. First operand 4375 states and 5974 transitions. Second operand 4 states. [2018-11-07 03:35:05,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:35:05,920 INFO L93 Difference]: Finished difference Result 11465 states and 16390 transitions. [2018-11-07 03:35:05,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 03:35:05,921 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 130 [2018-11-07 03:35:05,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:35:05,958 INFO L225 Difference]: With dead ends: 11465 [2018-11-07 03:35:05,958 INFO L226 Difference]: Without dead ends: 7405 [2018-11-07 03:35:05,980 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 03:35:05,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7405 states. [2018-11-07 03:35:06,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7405 to 7399. [2018-11-07 03:35:06,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7399 states. [2018-11-07 03:35:06,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7399 states to 7399 states and 9840 transitions. [2018-11-07 03:35:06,157 INFO L78 Accepts]: Start accepts. Automaton has 7399 states and 9840 transitions. Word has length 130 [2018-11-07 03:35:06,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:35:06,158 INFO L480 AbstractCegarLoop]: Abstraction has 7399 states and 9840 transitions. [2018-11-07 03:35:06,158 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 03:35:06,158 INFO L276 IsEmpty]: Start isEmpty. Operand 7399 states and 9840 transitions. [2018-11-07 03:35:06,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-11-07 03:35:06,162 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:35:06,163 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:35:06,163 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:35:06,163 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:35:06,163 INFO L82 PathProgramCache]: Analyzing trace with hash 419544631, now seen corresponding path program 1 times [2018-11-07 03:35:06,164 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:35:06,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:35:06,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:35:06,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:35:06,165 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:35:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:35:06,670 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:35:06,670 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:35:06,670 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:35:06,671 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-11-07 03:35:06,673 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 03:35:06,742 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:35:06,742 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:35:08,647 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:35:15,348 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 03:35:15,349 INFO L272 AbstractInterpreter]: Visited 104 different actions 298 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 03:35:15,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:35:15,363 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 03:35:15,363 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:35:15,363 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 03:35:15,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:35:15,375 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 03:35:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:35:15,457 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 03:35:15,643 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:35:15,643 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 03:35:15,926 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:35:15,947 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-07 03:35:15,947 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 11 [2018-11-07 03:35:15,947 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:35:15,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:35:15,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:35:15,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-11-07 03:35:15,948 INFO L87 Difference]: Start difference. First operand 7399 states and 9840 transitions. Second operand 6 states. [2018-11-07 03:35:22,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:35:22,124 INFO L93 Difference]: Finished difference Result 25922 states and 36237 transitions. [2018-11-07 03:35:22,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 03:35:22,126 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-11-07 03:35:22,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:35:22,256 INFO L225 Difference]: With dead ends: 25922 [2018-11-07 03:35:22,256 INFO L226 Difference]: Without dead ends: 18838 [2018-11-07 03:35:22,321 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 288 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-11-07 03:35:22,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18838 states. [2018-11-07 03:35:22,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18838 to 18786. [2018-11-07 03:35:22,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18786 states. [2018-11-07 03:35:22,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18786 states to 18786 states and 25161 transitions. [2018-11-07 03:35:22,801 INFO L78 Accepts]: Start accepts. Automaton has 18786 states and 25161 transitions. Word has length 145 [2018-11-07 03:35:22,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:35:22,802 INFO L480 AbstractCegarLoop]: Abstraction has 18786 states and 25161 transitions. [2018-11-07 03:35:22,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:35:22,802 INFO L276 IsEmpty]: Start isEmpty. Operand 18786 states and 25161 transitions. [2018-11-07 03:35:22,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2018-11-07 03:35:22,825 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:35:22,825 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, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 03:35:22,826 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:35:22,826 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:35:22,826 INFO L82 PathProgramCache]: Analyzing trace with hash 577768630, now seen corresponding path program 1 times [2018-11-07 03:35:22,826 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:35:22,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:35:22,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:35:22,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:35:22,828 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:35:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:35:23,492 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 85 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-07 03:35:23,492 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:35:23,492 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:35:23,494 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 219 with the following transitions: [2018-11-07 03:35:23,494 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [585], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 03:35:23,508 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:35:23,508 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:35:25,067 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:35:32,332 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 03:35:32,332 INFO L272 AbstractInterpreter]: Visited 105 different actions 301 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 03:35:32,358 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:35:32,358 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 03:35:32,359 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:35:32,359 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 03:35:32,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:35:32,385 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 03:35:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:35:32,483 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 03:35:32,672 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 85 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-11-07 03:35:32,672 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 03:35:33,065 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-11-07 03:35:33,096 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-07 03:35:33,096 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 9 [2018-11-07 03:35:33,096 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:35:33,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 03:35:33,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 03:35:33,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-07 03:35:33,098 INFO L87 Difference]: Start difference. First operand 18786 states and 25161 transitions. Second operand 5 states. [2018-11-07 03:35:36,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:35:36,461 INFO L93 Difference]: Finished difference Result 43199 states and 60674 transitions. [2018-11-07 03:35:36,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 03:35:36,463 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 218 [2018-11-07 03:35:36,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:35:36,603 INFO L225 Difference]: With dead ends: 43199 [2018-11-07 03:35:36,603 INFO L226 Difference]: Without dead ends: 24727 [2018-11-07 03:35:36,666 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 434 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-11-07 03:35:36,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24727 states. [2018-11-07 03:35:37,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24727 to 23619. [2018-11-07 03:35:37,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23619 states. [2018-11-07 03:35:37,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23619 states to 23619 states and 30133 transitions. [2018-11-07 03:35:37,204 INFO L78 Accepts]: Start accepts. Automaton has 23619 states and 30133 transitions. Word has length 218 [2018-11-07 03:35:37,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:35:37,205 INFO L480 AbstractCegarLoop]: Abstraction has 23619 states and 30133 transitions. [2018-11-07 03:35:37,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 03:35:37,205 INFO L276 IsEmpty]: Start isEmpty. Operand 23619 states and 30133 transitions. [2018-11-07 03:35:37,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2018-11-07 03:35:37,239 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:35:37,239 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 03:35:37,240 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:35:37,240 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:35:37,240 INFO L82 PathProgramCache]: Analyzing trace with hash -2071919887, now seen corresponding path program 1 times [2018-11-07 03:35:37,240 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:35:37,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:35:37,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:35:37,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:35:37,242 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:35:37,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:35:37,955 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 89 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-07 03:35:37,956 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:35:37,956 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:35:37,956 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 239 with the following transitions: [2018-11-07 03:35:37,957 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [746], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 03:35:37,963 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:35:37,964 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:35:40,099 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:35:40,278 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:35:40,278 INFO L272 AbstractInterpreter]: Visited 113 different actions 113 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 03:35:40,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:35:40,317 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:35:42,411 INFO L227 lantSequenceWeakener]: Weakened 230 states. On average, predicates are now at 77.97% of their original sizes. [2018-11-07 03:35:42,412 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:35:42,925 INFO L415 sIntCurrentIteration]: We unified 237 AI predicates to 237 [2018-11-07 03:35:42,926 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:35:42,927 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:35:42,927 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2018-11-07 03:35:42,927 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:35:42,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-07 03:35:42,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-07 03:35:42,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 03:35:42,928 INFO L87 Difference]: Start difference. First operand 23619 states and 30133 transitions. Second operand 8 states. [2018-11-07 03:36:31,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:36:31,570 INFO L93 Difference]: Finished difference Result 46926 states and 59922 transitions. [2018-11-07 03:36:31,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 03:36:31,571 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 238 [2018-11-07 03:36:31,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:36:31,669 INFO L225 Difference]: With dead ends: 46926 [2018-11-07 03:36:31,669 INFO L226 Difference]: Without dead ends: 23621 [2018-11-07 03:36:31,748 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 239 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 03:36:31,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23621 states. [2018-11-07 03:36:32,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23621 to 23619. [2018-11-07 03:36:32,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23619 states. [2018-11-07 03:36:32,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23619 states to 23619 states and 30109 transitions. [2018-11-07 03:36:32,207 INFO L78 Accepts]: Start accepts. Automaton has 23619 states and 30109 transitions. Word has length 238 [2018-11-07 03:36:32,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:36:32,208 INFO L480 AbstractCegarLoop]: Abstraction has 23619 states and 30109 transitions. [2018-11-07 03:36:32,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-07 03:36:32,208 INFO L276 IsEmpty]: Start isEmpty. Operand 23619 states and 30109 transitions. [2018-11-07 03:36:32,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2018-11-07 03:36:32,244 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:36:32,245 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:36:32,245 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:36:32,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:36:32,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1405899324, now seen corresponding path program 1 times [2018-11-07 03:36:32,246 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:36:32,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:36:32,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:36:32,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:36:32,247 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:36:32,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:36:32,602 WARN L179 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:36:33,182 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 132 proven. 242 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-07 03:36:33,182 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:36:33,182 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:36:33,183 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 338 with the following transitions: [2018-11-07 03:36:33,183 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [633], [638], [640], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [719], [723], [727], [731], [734], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 03:36:33,194 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:36:33,194 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:36:35,156 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:36:40,731 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 03:36:40,731 INFO L272 AbstractInterpreter]: Visited 115 different actions 331 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 03:36:40,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:36:40,743 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 03:36:40,743 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:36:40,743 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 03:36:40,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:36:40,753 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 03:36:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:36:40,855 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 03:36:41,067 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 347 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2018-11-07 03:36:41,067 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 03:36:41,298 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 214 proven. 84 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-11-07 03:36:41,319 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 03:36:41,319 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-07 03:36:41,319 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 03:36:41,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 03:36:41,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 03:36:41,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-07 03:36:41,321 INFO L87 Difference]: Start difference. First operand 23619 states and 30109 transitions. Second operand 9 states. [2018-11-07 03:36:48,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:36:48,093 INFO L93 Difference]: Finished difference Result 49459 states and 63530 transitions. [2018-11-07 03:36:48,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-07 03:36:48,094 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 337 [2018-11-07 03:36:48,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:36:48,179 INFO L225 Difference]: With dead ends: 49459 [2018-11-07 03:36:48,180 INFO L226 Difference]: Without dead ends: 26154 [2018-11-07 03:36:48,283 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 706 GetRequests, 682 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2018-11-07 03:36:48,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26154 states. [2018-11-07 03:36:48,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26154 to 25567. [2018-11-07 03:36:48,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25567 states. [2018-11-07 03:36:48,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25567 states to 25567 states and 29997 transitions. [2018-11-07 03:36:48,789 INFO L78 Accepts]: Start accepts. Automaton has 25567 states and 29997 transitions. Word has length 337 [2018-11-07 03:36:48,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:36:48,789 INFO L480 AbstractCegarLoop]: Abstraction has 25567 states and 29997 transitions. [2018-11-07 03:36:48,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 03:36:48,790 INFO L276 IsEmpty]: Start isEmpty. Operand 25567 states and 29997 transitions. [2018-11-07 03:36:48,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2018-11-07 03:36:48,811 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:36:48,812 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:36:48,812 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:36:48,812 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:36:48,812 INFO L82 PathProgramCache]: Analyzing trace with hash 560387599, now seen corresponding path program 1 times [2018-11-07 03:36:48,812 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:36:48,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:36:48,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:36:48,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:36:48,814 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:36:48,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:36:49,650 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 206 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:36:49,651 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:36:49,651 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:36:49,651 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 461 with the following transitions: [2018-11-07 03:36:49,652 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [838], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 03:36:49,661 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:36:49,661 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:36:58,172 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:37:20,104 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:37:20,104 INFO L272 AbstractInterpreter]: Visited 295 different actions 872 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 03:37:20,154 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:37:20,154 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:37:25,419 INFO L227 lantSequenceWeakener]: Weakened 86 states. On average, predicates are now at 79.48% of their original sizes. [2018-11-07 03:37:25,419 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:37:39,640 INFO L415 sIntCurrentIteration]: We unified 459 AI predicates to 459 [2018-11-07 03:37:39,640 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:37:39,641 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:37:39,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [6] total 26 [2018-11-07 03:37:39,641 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:37:39,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-07 03:37:39,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-07 03:37:39,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2018-11-07 03:37:39,642 INFO L87 Difference]: Start difference. First operand 25567 states and 29997 transitions. Second operand 22 states. Received shutdown request... [2018-11-07 03:38:05,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-07 03:38:05,119 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 03:38:05,125 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 03:38:05,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:38:05 BoogieIcfgContainer [2018-11-07 03:38:05,125 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 03:38:05,126 INFO L168 Benchmark]: Toolchain (without parser) took 214088.41 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 861.2 MB. Max. memory is 7.1 GB. [2018-11-07 03:38:05,127 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-11-07 03:38:05,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1370.82 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: 95.3 MB). Peak memory consumption was 95.3 MB. Max. memory is 7.1 GB. [2018-11-07 03:38:05,128 INFO L168 Benchmark]: Boogie Procedure Inliner took 239.05 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -892.1 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. [2018-11-07 03:38:05,129 INFO L168 Benchmark]: Boogie Preprocessor took 144.95 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2018-11-07 03:38:05,130 INFO L168 Benchmark]: RCFGBuilder took 6829.39 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 296.0 MB). Peak memory consumption was 296.0 MB. Max. memory is 7.1 GB. [2018-11-07 03:38:05,131 INFO L168 Benchmark]: TraceAbstraction took 205498.57 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 3.2 GB in the end (delta: -1.3 GB). Peak memory consumption was 587.5 MB. Max. memory is 7.1 GB. [2018-11-07 03:38:05,136 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 1370.82 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: 95.3 MB). Peak memory consumption was 95.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 239.05 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -892.1 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 144.95 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6829.39 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 296.0 MB). Peak memory consumption was 296.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 205498.57 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 3.2 GB in the end (delta: -1.3 GB). Peak memory consumption was 587.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 133]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 133). Cancelled while BasicCegarLoop was constructing difference of abstraction (25567states) and FLOYD_HOARE automaton (currently 9 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (49 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 205.4s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 115.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2189 SDtfs, 11801 SDslu, 1717 SDs, 0 SdLazy, 18881 SolverSat, 4899 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 66.9s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 2181 GetRequests, 2086 SyntacticMatches, 8 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 18.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25567occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 57.9s AbstIntTime, 5 AbstIntIterations, 2 AbstIntStrong, 0.9968557387972681 AbsIntWeakeningRatio, 0.07471264367816093 AbsIntAvgWeakeningVarsNumRemoved, 472.5215517241379 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 1827 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 2520 NumberOfCodeBlocks, 2520 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 3205 ConstructedInterpolants, 0 QuantifiedInterpolants, 2735395 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1246 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 15 InterpolantComputations, 6 PerfectInterpolantSequences, 1796/2272 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown