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/Problem11_label55_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 03:03:13,019 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 03:03:13,021 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 03:03:13,035 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 03:03:13,035 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 03:03:13,037 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 03:03:13,038 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 03:03:13,042 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 03:03:13,045 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 03:03:13,047 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 03:03:13,048 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 03:03:13,048 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 03:03:13,050 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 03:03:13,051 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 03:03:13,052 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 03:03:13,053 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 03:03:13,054 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 03:03:13,056 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 03:03:13,058 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 03:03:13,059 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 03:03:13,061 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 03:03:13,062 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 03:03:13,064 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 03:03:13,064 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 03:03:13,065 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 03:03:13,065 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 03:03:13,066 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 03:03:13,067 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 03:03:13,068 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 03:03:13,069 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 03:03:13,069 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 03:03:13,070 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 03:03:13,070 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 03:03:13,070 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 03:03:13,072 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 03:03:13,072 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 03:03:13,073 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 03:03:13,096 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 03:03:13,096 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 03:03:13,097 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 03:03:13,097 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 03:03:13,097 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 03:03:13,098 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 03:03:13,098 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 03:03:13,098 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 03:03:13,098 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 03:03:13,098 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 03:03:13,098 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 03:03:13,099 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 03:03:13,099 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 03:03:13,100 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 03:03:13,100 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 03:03:13,100 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 03:03:13,100 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 03:03:13,100 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 03:03:13,100 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 03:03:13,101 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 03:03:13,101 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 03:03:13,101 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 03:03:13,101 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 03:03:13,101 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 03:03:13,102 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 03:03:13,102 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 03:03:13,102 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 03:03:13,102 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 03:03:13,102 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 03:03:13,103 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 03:03:13,103 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 03:03:13,103 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 03:03:13,103 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 03:03:13,103 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 03:03:13,167 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 03:03:13,183 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 03:03:13,186 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 03:03:13,187 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 03:03:13,188 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 03:03:13,189 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label55_true-unreach-call.c [2018-11-07 03:03:13,251 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dfe937ae/28b7c1793147446da5fc9dedf449b82c/FLAG695c0514e [2018-11-07 03:03:13,840 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 03:03:13,841 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label55_true-unreach-call.c [2018-11-07 03:03:13,860 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dfe937ae/28b7c1793147446da5fc9dedf449b82c/FLAG695c0514e [2018-11-07 03:03:13,882 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dfe937ae/28b7c1793147446da5fc9dedf449b82c [2018-11-07 03:03:13,895 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 03:03:13,898 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 03:03:13,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 03:03:13,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 03:03:13,903 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 03:03:13,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:03:13" (1/1) ... [2018-11-07 03:03:13,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41600c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:13, skipping insertion in model container [2018-11-07 03:03:13,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:03:13" (1/1) ... [2018-11-07 03:03:13,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 03:03:14,008 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 03:03:14,643 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:03:14,652 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 03:03:14,859 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:03:14,882 INFO L193 MainTranslator]: Completed translation [2018-11-07 03:03:14,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:14 WrapperNode [2018-11-07 03:03:14,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 03:03:14,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 03:03:14,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 03:03:14,884 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 03:03:14,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:14" (1/1) ... [2018-11-07 03:03:15,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:14" (1/1) ... [2018-11-07 03:03:15,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 03:03:15,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 03:03:15,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 03:03:15,057 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 03:03:15,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:14" (1/1) ... [2018-11-07 03:03:15,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:14" (1/1) ... [2018-11-07 03:03:15,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:14" (1/1) ... [2018-11-07 03:03:15,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:14" (1/1) ... [2018-11-07 03:03:15,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:14" (1/1) ... [2018-11-07 03:03:15,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:14" (1/1) ... [2018-11-07 03:03:15,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:14" (1/1) ... [2018-11-07 03:03:15,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 03:03:15,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 03:03:15,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 03:03:15,190 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 03:03:15,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:14" (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 03:03:15,259 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 03:03:15,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 03:03:15,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 03:03:15,260 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 03:03:15,261 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 03:03:15,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 03:03:15,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 03:03:15,261 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 03:03:15,262 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 03:03:19,838 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 03:03:19,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:03:19 BoogieIcfgContainer [2018-11-07 03:03:19,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 03:03:19,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 03:03:19,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 03:03:19,845 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 03:03:19,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:03:13" (1/3) ... [2018-11-07 03:03:19,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f6af46a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:03:19, skipping insertion in model container [2018-11-07 03:03:19,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:14" (2/3) ... [2018-11-07 03:03:19,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f6af46a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:03:19, skipping insertion in model container [2018-11-07 03:03:19,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:03:19" (3/3) ... [2018-11-07 03:03:19,850 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label55_true-unreach-call.c [2018-11-07 03:03:19,861 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 03:03:19,875 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 03:03:19,897 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 03:03:19,953 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 03:03:19,953 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 03:03:19,953 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 03:03:19,953 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 03:03:19,953 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 03:03:19,954 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 03:03:19,954 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 03:03:19,954 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 03:03:19,998 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-11-07 03:03:20,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-07 03:03:20,014 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:03:20,017 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] [2018-11-07 03:03:20,019 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:03:20,028 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:03:20,028 INFO L82 PathProgramCache]: Analyzing trace with hash 2008695804, now seen corresponding path program 1 times [2018-11-07 03:03:20,031 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:03:20,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:03:20,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:03:20,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:03:20,096 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:03:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:03:20,651 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 03:03:20,653 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:03:20,654 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 03:03:20,654 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:03:20,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 03:03:20,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 03:03:20,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 03:03:20,682 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-11-07 03:03:23,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:03:23,924 INFO L93 Difference]: Finished difference Result 979 states and 1754 transitions. [2018-11-07 03:03:23,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 03:03:23,927 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2018-11-07 03:03:23,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:03:23,951 INFO L225 Difference]: With dead ends: 979 [2018-11-07 03:03:23,951 INFO L226 Difference]: Without dead ends: 680 [2018-11-07 03:03:23,960 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 03:03:23,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2018-11-07 03:03:24,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 484. [2018-11-07 03:03:24,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2018-11-07 03:03:24,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 730 transitions. [2018-11-07 03:03:24,054 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 730 transitions. Word has length 52 [2018-11-07 03:03:24,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:03:24,055 INFO L480 AbstractCegarLoop]: Abstraction has 484 states and 730 transitions. [2018-11-07 03:03:24,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 03:03:24,056 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 730 transitions. [2018-11-07 03:03:24,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-11-07 03:03:24,063 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:03:24,063 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:03:24,064 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:03:24,064 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:03:24,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1306963893, now seen corresponding path program 1 times [2018-11-07 03:03:24,065 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:03:24,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:03:24,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:03:24,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:03:24,067 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:03:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:03:24,399 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:03:24,399 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:03:24,400 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:03:24,400 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:03:24,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:03:24,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:03:24,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:03:24,403 INFO L87 Difference]: Start difference. First operand 484 states and 730 transitions. Second operand 6 states. [2018-11-07 03:03:28,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:03:28,283 INFO L93 Difference]: Finished difference Result 1555 states and 2493 transitions. [2018-11-07 03:03:28,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:03:28,290 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-11-07 03:03:28,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:03:28,298 INFO L225 Difference]: With dead ends: 1555 [2018-11-07 03:03:28,298 INFO L226 Difference]: Without dead ends: 1077 [2018-11-07 03:03:28,302 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 03:03:28,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2018-11-07 03:03:28,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1063. [2018-11-07 03:03:28,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1063 states. [2018-11-07 03:03:28,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1592 transitions. [2018-11-07 03:03:28,372 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1592 transitions. Word has length 125 [2018-11-07 03:03:28,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:03:28,373 INFO L480 AbstractCegarLoop]: Abstraction has 1063 states and 1592 transitions. [2018-11-07 03:03:28,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:03:28,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1592 transitions. [2018-11-07 03:03:28,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-11-07 03:03:28,384 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:03:28,385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:03:28,385 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:03:28,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:03:28,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1349379296, now seen corresponding path program 1 times [2018-11-07 03:03:28,386 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:03:28,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:03:28,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:03:28,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:03:28,388 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:03:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:03:28,676 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:03:28,677 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:03:28,677 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 03:03:28,677 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:03:28,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 03:03:28,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 03:03:28,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 03:03:28,679 INFO L87 Difference]: Start difference. First operand 1063 states and 1592 transitions. Second operand 4 states. [2018-11-07 03:03:31,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:03:31,703 INFO L93 Difference]: Finished difference Result 2907 states and 4465 transitions. [2018-11-07 03:03:31,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 03:03:31,713 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 126 [2018-11-07 03:03:31,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:03:31,730 INFO L225 Difference]: With dead ends: 2907 [2018-11-07 03:03:31,731 INFO L226 Difference]: Without dead ends: 1850 [2018-11-07 03:03:31,740 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 03:03:31,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2018-11-07 03:03:31,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1646. [2018-11-07 03:03:31,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2018-11-07 03:03:31,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2436 transitions. [2018-11-07 03:03:31,808 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2436 transitions. Word has length 126 [2018-11-07 03:03:31,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:03:31,809 INFO L480 AbstractCegarLoop]: Abstraction has 1646 states and 2436 transitions. [2018-11-07 03:03:31,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 03:03:31,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2436 transitions. [2018-11-07 03:03:31,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-11-07 03:03:31,815 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:03:31,817 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:03:31,817 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:03:31,817 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:03:31,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1663032705, now seen corresponding path program 1 times [2018-11-07 03:03:31,818 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:03:31,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:03:31,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:03:31,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:03:31,819 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:03:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:03:32,609 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:03:32,610 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:03:32,611 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:03:32,612 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-11-07 03:03:32,620 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [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], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [594], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 03:03:32,718 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:03:32,719 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:03:35,695 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:03:35,982 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:03:35,984 INFO L272 AbstractInterpreter]: Visited 99 different actions 99 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-11-07 03:03:36,008 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:03:36,008 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:03:38,021 INFO L227 lantSequenceWeakener]: Weakened 142 states. On average, predicates are now at 73.94% of their original sizes. [2018-11-07 03:03:38,022 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:03:38,398 INFO L415 sIntCurrentIteration]: We unified 146 AI predicates to 146 [2018-11-07 03:03:38,398 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:03:38,399 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:03:38,400 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2018-11-07 03:03:38,400 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:03:38,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 03:03:38,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 03:03:38,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 03:03:38,401 INFO L87 Difference]: Start difference. First operand 1646 states and 2436 transitions. Second operand 7 states. [2018-11-07 03:04:02,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:04:02,358 INFO L93 Difference]: Finished difference Result 3478 states and 5113 transitions. [2018-11-07 03:04:02,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:04:02,358 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 147 [2018-11-07 03:04:02,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:04:02,370 INFO L225 Difference]: With dead ends: 3478 [2018-11-07 03:04:02,370 INFO L226 Difference]: Without dead ends: 1838 [2018-11-07 03:04:02,377 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 147 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 03:04:02,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2018-11-07 03:04:02,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1836. [2018-11-07 03:04:02,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1836 states. [2018-11-07 03:04:02,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1836 states to 1836 states and 2636 transitions. [2018-11-07 03:04:02,442 INFO L78 Accepts]: Start accepts. Automaton has 1836 states and 2636 transitions. Word has length 147 [2018-11-07 03:04:02,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:04:02,442 INFO L480 AbstractCegarLoop]: Abstraction has 1836 states and 2636 transitions. [2018-11-07 03:04:02,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 03:04:02,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1836 states and 2636 transitions. [2018-11-07 03:04:02,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2018-11-07 03:04:02,449 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:04:02,450 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 03:04:02,450 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:04:02,450 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:04:02,451 INFO L82 PathProgramCache]: Analyzing trace with hash 639193526, now seen corresponding path program 1 times [2018-11-07 03:04:02,451 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:04:02,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:04:02,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:04:02,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:04:02,453 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:04:02,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:04:03,097 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-11-07 03:04:03,098 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:04:03,098 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:04:03,098 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 265 with the following transitions: [2018-11-07 03:04:03,099 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [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], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 03:04:03,105 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:04:03,105 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:04:06,420 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:04:20,649 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:04:20,650 INFO L272 AbstractInterpreter]: Visited 125 different actions 363 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-07 03:04:20,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:04:20,659 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:04:22,881 INFO L227 lantSequenceWeakener]: Weakened 59 states. On average, predicates are now at 76.27% of their original sizes. [2018-11-07 03:04:22,882 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:04:32,123 INFO L415 sIntCurrentIteration]: We unified 263 AI predicates to 263 [2018-11-07 03:04:32,123 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:04:32,124 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:04:32,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [7] total 26 [2018-11-07 03:04:32,124 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:04:32,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-07 03:04:32,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-07 03:04:32,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2018-11-07 03:04:32,125 INFO L87 Difference]: Start difference. First operand 1836 states and 2636 transitions. Second operand 21 states. Received shutdown request... [2018-11-07 03:07:17,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-07 03:07:17,586 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 03:07:17,591 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 03:07:17,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:07:17 BoogieIcfgContainer [2018-11-07 03:07:17,591 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 03:07:17,592 INFO L168 Benchmark]: Toolchain (without parser) took 243695.86 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -236.4 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-11-07 03:07:17,593 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. [2018-11-07 03:07:17,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 984.24 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: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. [2018-11-07 03:07:17,595 INFO L168 Benchmark]: Boogie Procedure Inliner took 173.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -841.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2018-11-07 03:07:17,596 INFO L168 Benchmark]: Boogie Preprocessor took 132.43 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. [2018-11-07 03:07:17,596 INFO L168 Benchmark]: RCFGBuilder took 4649.76 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: 172.5 MB). Peak memory consumption was 172.5 MB. Max. memory is 7.1 GB. [2018-11-07 03:07:17,597 INFO L168 Benchmark]: TraceAbstraction took 237750.42 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.7 GB in the end (delta: 366.8 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-11-07 03:07:17,602 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 984.24 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: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 173.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -841.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.43 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 4649.76 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: 172.5 MB). Peak memory consumption was 172.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 237750.42 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.7 GB in the end (delta: 366.8 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 141]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 141). Cancelled while BasicCegarLoop was constructing difference of abstraction (1836states) and FLOYD_HOARE automaton (currently 18 states, 21 states before enhancement),while ReachableStatesComputation was computing reachable states (1477 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 237.6s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 199.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1243 SDtfs, 3527 SDslu, 760 SDs, 0 SdLazy, 5957 SolverSat, 1423 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 94.3s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 438 GetRequests, 394 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 12.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1836occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 20.9s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9954269673096084 AbsIntWeakeningRatio, 0.12224938875305623 AbsIntAvgWeakeningVarsNumRemoved, 1199.3814180929096 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 416 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 714 NumberOfCodeBlocks, 714 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 709 ConstructedInterpolants, 0 QuantifiedInterpolants, 414750 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 182/320 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown