java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label51_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 17:51:15,111 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 17:51:15,113 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 17:51:15,126 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 17:51:15,126 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 17:51:15,127 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 17:51:15,129 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 17:51:15,131 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 17:51:15,133 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 17:51:15,134 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 17:51:15,135 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 17:51:15,135 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 17:51:15,136 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 17:51:15,137 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 17:51:15,139 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 17:51:15,140 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 17:51:15,142 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 17:51:15,144 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 17:51:15,146 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 17:51:15,153 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 17:51:15,157 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 17:51:15,161 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 17:51:15,166 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 17:51:15,167 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 17:51:15,167 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 17:51:15,169 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 17:51:15,170 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 17:51:15,173 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 17:51:15,174 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 17:51:15,177 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 17:51:15,178 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 17:51:15,179 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 17:51:15,179 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 17:51:15,179 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 17:51:15,180 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 17:51:15,183 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 17:51:15,183 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 17:51:15,210 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 17:51:15,211 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 17:51:15,212 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 17:51:15,212 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 17:51:15,212 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 17:51:15,212 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 17:51:15,212 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 17:51:15,212 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 17:51:15,213 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 17:51:15,213 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 17:51:15,213 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 17:51:15,213 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 17:51:15,213 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 17:51:15,214 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 17:51:15,214 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 17:51:15,215 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 17:51:15,215 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 17:51:15,215 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 17:51:15,215 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 17:51:15,215 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 17:51:15,216 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 17:51:15,216 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 17:51:15,216 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 17:51:15,216 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 17:51:15,216 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 17:51:15,216 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 17:51:15,217 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 17:51:15,217 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 17:51:15,217 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 17:51:15,217 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 17:51:15,217 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 17:51:15,218 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 17:51:15,218 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 17:51:15,218 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 17:51:15,218 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 17:51:15,263 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 17:51:15,276 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 17:51:15,280 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 17:51:15,282 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 17:51:15,282 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 17:51:15,283 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label51_false-unreach-call.c [2018-11-07 17:51:15,344 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d939635d3/af58a49f37db4cf88a2e3b7e4ffd5d36/FLAG4038825b4 [2018-11-07 17:51:16,207 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 17:51:16,208 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label51_false-unreach-call.c [2018-11-07 17:51:16,244 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d939635d3/af58a49f37db4cf88a2e3b7e4ffd5d36/FLAG4038825b4 [2018-11-07 17:51:16,262 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d939635d3/af58a49f37db4cf88a2e3b7e4ffd5d36 [2018-11-07 17:51:16,273 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 17:51:16,275 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 17:51:16,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 17:51:16,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 17:51:16,281 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 17:51:16,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:51:16" (1/1) ... [2018-11-07 17:51:16,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710be24e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:51:16, skipping insertion in model container [2018-11-07 17:51:16,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:51:16" (1/1) ... [2018-11-07 17:51:16,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 17:51:16,465 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 17:51:17,801 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 17:51:17,806 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 17:51:18,390 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 17:51:18,420 INFO L193 MainTranslator]: Completed translation [2018-11-07 17:51:18,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:51:18 WrapperNode [2018-11-07 17:51:18,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 17:51:18,422 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 17:51:18,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 17:51:18,423 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 17:51:18,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:51:18" (1/1) ... [2018-11-07 17:51:18,721 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:51:18" (1/1) ... [2018-11-07 17:51:18,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 17:51:18,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 17:51:18,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 17:51:18,731 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 17:51:18,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:51:18" (1/1) ... [2018-11-07 17:51:18,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:51:18" (1/1) ... [2018-11-07 17:51:18,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:51:18" (1/1) ... [2018-11-07 17:51:18,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:51:18" (1/1) ... [2018-11-07 17:51:18,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:51:18" (1/1) ... [2018-11-07 17:51:18,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:51:18" (1/1) ... [2018-11-07 17:51:18,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:51:18" (1/1) ... [2018-11-07 17:51:18,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 17:51:18,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 17:51:18,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 17:51:18,951 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 17:51:18,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:51:18" (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 17:51:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 17:51:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 17:51:19,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 17:51:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 17:51:19,022 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 17:51:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 17:51:19,022 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 17:51:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 17:51:19,022 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 17:51:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 17:51:19,023 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 17:51:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 17:51:19,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 17:51:19,024 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 17:51:19,025 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 17:51:27,849 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 17:51:27,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:51:27 BoogieIcfgContainer [2018-11-07 17:51:27,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 17:51:27,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 17:51:27,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 17:51:27,854 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 17:51:27,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:51:16" (1/3) ... [2018-11-07 17:51:27,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fcdfc63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:51:27, skipping insertion in model container [2018-11-07 17:51:27,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:51:18" (2/3) ... [2018-11-07 17:51:27,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fcdfc63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:51:27, skipping insertion in model container [2018-11-07 17:51:27,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:51:27" (3/3) ... [2018-11-07 17:51:27,857 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label51_false-unreach-call.c [2018-11-07 17:51:27,867 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 17:51:27,877 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 17:51:27,894 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 17:51:27,940 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 17:51:27,940 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 17:51:27,940 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 17:51:27,940 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 17:51:27,941 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 17:51:27,941 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 17:51:27,941 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 17:51:27,941 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 17:51:27,986 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-11-07 17:51:27,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-07 17:51:27,993 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 17:51:27,994 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 17:51:27,996 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 17:51:28,002 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:51:28,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1101804500, now seen corresponding path program 1 times [2018-11-07 17:51:28,005 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 17:51:28,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:51:28,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 17:51:28,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:51:28,054 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 17:51:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 17:51:28,428 WARN L179 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 17:51:28,532 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 17:51:28,535 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 17:51:28,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 17:51:28,535 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 17:51:28,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 17:51:28,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 17:51:28,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 17:51:28,574 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-11-07 17:51:36,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 17:51:36,502 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-11-07 17:51:36,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 17:51:36,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-11-07 17:51:36,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 17:51:36,552 INFO L225 Difference]: With dead ends: 2446 [2018-11-07 17:51:36,552 INFO L226 Difference]: Without dead ends: 1604 [2018-11-07 17:51:36,572 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 17:51:36,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-11-07 17:51:36,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-11-07 17:51:36,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-11-07 17:51:36,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2909 transitions. [2018-11-07 17:51:36,787 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2909 transitions. Word has length 18 [2018-11-07 17:51:36,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 17:51:36,787 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2909 transitions. [2018-11-07 17:51:36,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 17:51:36,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2909 transitions. [2018-11-07 17:51:36,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-11-07 17:51:36,796 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 17:51:36,796 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 17:51:36,796 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 17:51:36,798 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:51:36,799 INFO L82 PathProgramCache]: Analyzing trace with hash -907006918, now seen corresponding path program 1 times [2018-11-07 17:51:36,799 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 17:51:36,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:51:36,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 17:51:36,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:51:36,802 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 17:51:36,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 17:51:37,277 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 17:51:37,520 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 17:51:37,520 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 17:51:37,521 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 17:51:37,521 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 17:51:37,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 17:51:37,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 17:51:37,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 17:51:37,524 INFO L87 Difference]: Start difference. First operand 1604 states and 2909 transitions. Second operand 5 states. [2018-11-07 17:51:46,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 17:51:46,985 INFO L93 Difference]: Finished difference Result 4818 states and 8826 transitions. [2018-11-07 17:51:46,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 17:51:46,986 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 92 [2018-11-07 17:51:46,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 17:51:47,012 INFO L225 Difference]: With dead ends: 4818 [2018-11-07 17:51:47,013 INFO L226 Difference]: Without dead ends: 3220 [2018-11-07 17:51:47,019 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 17:51:47,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2018-11-07 17:51:47,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 3186. [2018-11-07 17:51:47,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3186 states. [2018-11-07 17:51:47,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 5594 transitions. [2018-11-07 17:51:47,141 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 5594 transitions. Word has length 92 [2018-11-07 17:51:47,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 17:51:47,142 INFO L480 AbstractCegarLoop]: Abstraction has 3186 states and 5594 transitions. [2018-11-07 17:51:47,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 17:51:47,142 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 5594 transitions. [2018-11-07 17:51:47,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-11-07 17:51:47,145 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 17:51:47,145 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 17:51:47,146 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 17:51:47,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:51:47,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1469630269, now seen corresponding path program 1 times [2018-11-07 17:51:47,146 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 17:51:47,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:51:47,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 17:51:47,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:51:47,148 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 17:51:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 17:51:47,387 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 17:51:47,388 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 17:51:47,388 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 17:51:47,388 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 17:51:47,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 17:51:47,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 17:51:47,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-07 17:51:47,391 INFO L87 Difference]: Start difference. First operand 3186 states and 5594 transitions. Second operand 5 states. [2018-11-07 17:51:58,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 17:51:58,461 INFO L93 Difference]: Finished difference Result 11100 states and 19721 transitions. [2018-11-07 17:51:58,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 17:51:58,463 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2018-11-07 17:51:58,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 17:51:58,516 INFO L225 Difference]: With dead ends: 11100 [2018-11-07 17:51:58,516 INFO L226 Difference]: Without dead ends: 7920 [2018-11-07 17:51:58,533 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 17:51:58,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7920 states. [2018-11-07 17:51:58,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7920 to 7891. [2018-11-07 17:51:58,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7891 states. [2018-11-07 17:51:58,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7891 states to 7891 states and 11676 transitions. [2018-11-07 17:51:58,746 INFO L78 Accepts]: Start accepts. Automaton has 7891 states and 11676 transitions. Word has length 97 [2018-11-07 17:51:58,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 17:51:58,747 INFO L480 AbstractCegarLoop]: Abstraction has 7891 states and 11676 transitions. [2018-11-07 17:51:58,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 17:51:58,747 INFO L276 IsEmpty]: Start isEmpty. Operand 7891 states and 11676 transitions. [2018-11-07 17:51:58,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-11-07 17:51:58,752 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 17:51:58,752 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 17:51:58,752 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 17:51:58,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:51:58,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1193444487, now seen corresponding path program 1 times [2018-11-07 17:51:58,753 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 17:51:58,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:51:58,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 17:51:58,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:51:58,754 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 17:51:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 17:51:59,026 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 17:51:59,026 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 17:51:59,026 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 17:51:59,027 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 17:51:59,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 17:51:59,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 17:51:59,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 17:51:59,028 INFO L87 Difference]: Start difference. First operand 7891 states and 11676 transitions. Second operand 6 states. [2018-11-07 17:52:05,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 17:52:05,510 INFO L93 Difference]: Finished difference Result 19169 states and 29015 transitions. [2018-11-07 17:52:05,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 17:52:05,510 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2018-11-07 17:52:05,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 17:52:05,566 INFO L225 Difference]: With dead ends: 19169 [2018-11-07 17:52:05,567 INFO L226 Difference]: Without dead ends: 11284 [2018-11-07 17:52:05,594 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 17:52:05,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11284 states. [2018-11-07 17:52:05,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11284 to 11206. [2018-11-07 17:52:05,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11206 states. [2018-11-07 17:52:05,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11206 states to 11206 states and 15763 transitions. [2018-11-07 17:52:05,941 INFO L78 Accepts]: Start accepts. Automaton has 11206 states and 15763 transitions. Word has length 143 [2018-11-07 17:52:05,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 17:52:05,942 INFO L480 AbstractCegarLoop]: Abstraction has 11206 states and 15763 transitions. [2018-11-07 17:52:05,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 17:52:05,942 INFO L276 IsEmpty]: Start isEmpty. Operand 11206 states and 15763 transitions. [2018-11-07 17:52:06,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-11-07 17:52:06,131 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 17:52:06,135 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 17:52:06,135 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 17:52:06,136 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:52:06,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1195363482, now seen corresponding path program 1 times [2018-11-07 17:52:06,137 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 17:52:06,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:52:06,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 17:52:06,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:52:06,139 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 17:52:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 17:52:06,613 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 17:52:06,613 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 17:52:06,614 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 17:52:06,614 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 17:52:06,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 17:52:06,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 17:52:06,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-07 17:52:06,617 INFO L87 Difference]: Start difference. First operand 11206 states and 15763 transitions. Second operand 5 states. [2018-11-07 17:52:13,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 17:52:13,679 INFO L93 Difference]: Finished difference Result 33957 states and 49141 transitions. [2018-11-07 17:52:13,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 17:52:13,680 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 172 [2018-11-07 17:52:13,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 17:52:13,779 INFO L225 Difference]: With dead ends: 33957 [2018-11-07 17:52:13,779 INFO L226 Difference]: Without dead ends: 22757 [2018-11-07 17:52:13,831 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 17:52:13,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22757 states. [2018-11-07 17:52:14,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22757 to 22593. [2018-11-07 17:52:14,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22593 states. [2018-11-07 17:52:14,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22593 states to 22593 states and 30219 transitions. [2018-11-07 17:52:14,331 INFO L78 Accepts]: Start accepts. Automaton has 22593 states and 30219 transitions. Word has length 172 [2018-11-07 17:52:14,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 17:52:14,332 INFO L480 AbstractCegarLoop]: Abstraction has 22593 states and 30219 transitions. [2018-11-07 17:52:14,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 17:52:14,332 INFO L276 IsEmpty]: Start isEmpty. Operand 22593 states and 30219 transitions. [2018-11-07 17:52:14,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-11-07 17:52:14,337 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 17:52:14,337 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 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 17:52:14,337 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 17:52:14,338 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:52:14,338 INFO L82 PathProgramCache]: Analyzing trace with hash -645247468, now seen corresponding path program 1 times [2018-11-07 17:52:14,338 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 17:52:14,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:52:14,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 17:52:14,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:52:14,339 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 17:52:14,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 17:52:14,792 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 17:52:15,214 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 22 proven. 82 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 17:52:15,215 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 17:52:15,215 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 17:52:15,216 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 209 with the following transitions: [2018-11-07 17:52:15,218 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1911], [1913], [1916], [1924], [1932], [1940], [1948], [1956], [1964], [1972], [1980], [1988], [1996], [2004], [2012], [2020], [2028], [2036], [2044], [2052], [2060], [2068], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2428], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2492], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-07 17:52:15,321 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 17:52:15,323 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 17:52:16,038 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 17:52:16,042 INFO L272 AbstractInterpreter]: Visited 108 different actions 108 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 17:52:16,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:52:16,087 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 17:52:16,659 INFO L227 lantSequenceWeakener]: Weakened 199 states. On average, predicates are now at 74.91% of their original sizes. [2018-11-07 17:52:16,659 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 17:52:16,969 INFO L415 sIntCurrentIteration]: We unified 207 AI predicates to 207 [2018-11-07 17:52:16,969 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 17:52:16,970 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 17:52:16,970 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-11-07 17:52:16,971 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 17:52:16,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-07 17:52:16,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-07 17:52:16,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 17:52:16,972 INFO L87 Difference]: Start difference. First operand 22593 states and 30219 transitions. Second operand 8 states. [2018-11-07 17:52:23,199 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 17:52:47,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 17:52:47,742 INFO L93 Difference]: Finished difference Result 45950 states and 61282 transitions. [2018-11-07 17:52:47,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 17:52:47,743 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 208 [2018-11-07 17:52:47,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 17:52:47,808 INFO L225 Difference]: With dead ends: 45950 [2018-11-07 17:52:47,809 INFO L226 Difference]: Without dead ends: 23363 [2018-11-07 17:52:47,866 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 209 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 17:52:47,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23363 states. [2018-11-07 17:52:48,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23363 to 23361. [2018-11-07 17:52:48,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23361 states. [2018-11-07 17:52:48,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23361 states to 23361 states and 30997 transitions. [2018-11-07 17:52:48,279 INFO L78 Accepts]: Start accepts. Automaton has 23361 states and 30997 transitions. Word has length 208 [2018-11-07 17:52:48,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 17:52:48,279 INFO L480 AbstractCegarLoop]: Abstraction has 23361 states and 30997 transitions. [2018-11-07 17:52:48,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-07 17:52:48,280 INFO L276 IsEmpty]: Start isEmpty. Operand 23361 states and 30997 transitions. [2018-11-07 17:52:48,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2018-11-07 17:52:48,285 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 17:52:48,286 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 17:52:48,286 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 17:52:48,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:52:48,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1937456972, now seen corresponding path program 1 times [2018-11-07 17:52:48,287 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 17:52:48,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:52:48,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 17:52:48,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:52:48,288 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 17:52:48,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 17:52:48,629 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 17:52:49,354 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 16 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 17:52:49,354 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 17:52:49,354 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 17:52:49,355 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 269 with the following transitions: [2018-11-07 17:52:49,355 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1911], [1913], [1916], [1924], [1932], [1940], [1948], [1956], [1964], [1972], [1980], [1988], [1996], [2004], [2012], [2020], [2028], [2036], [2044], [2052], [2060], [2068], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2496], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-07 17:52:49,362 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 17:52:49,362 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 17:52:49,598 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 17:52:50,037 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 17:52:50,038 INFO L272 AbstractInterpreter]: Visited 155 different actions 455 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 26 variables. [2018-11-07 17:52:50,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:52:50,045 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 17:52:50,045 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 17:52:50,045 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 17:52:50,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 17:52:50,057 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 17:52:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 17:52:50,160 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 17:52:50,303 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2018-11-07 17:52:50,303 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 17:52:50,742 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2018-11-07 17:52:50,775 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 17:52:50,776 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-11-07 17:52:50,776 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 17:52:50,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 17:52:50,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 17:52:50,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-11-07 17:52:50,777 INFO L87 Difference]: Start difference. First operand 23361 states and 30997 transitions. Second operand 3 states. [2018-11-07 17:52:58,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 17:52:58,739 INFO L93 Difference]: Finished difference Result 64630 states and 89746 transitions. [2018-11-07 17:52:58,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 17:52:58,739 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 268 [2018-11-07 17:52:58,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 17:52:58,978 INFO L225 Difference]: With dead ends: 64630 [2018-11-07 17:52:58,979 INFO L226 Difference]: Without dead ends: 42043 [2018-11-07 17:52:59,090 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 536 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-11-07 17:52:59,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42043 states. [2018-11-07 17:53:00,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42043 to 42015. [2018-11-07 17:53:00,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42015 states. [2018-11-07 17:53:00,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42015 states to 42015 states and 56061 transitions. [2018-11-07 17:53:00,305 INFO L78 Accepts]: Start accepts. Automaton has 42015 states and 56061 transitions. Word has length 268 [2018-11-07 17:53:00,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 17:53:00,306 INFO L480 AbstractCegarLoop]: Abstraction has 42015 states and 56061 transitions. [2018-11-07 17:53:00,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 17:53:00,306 INFO L276 IsEmpty]: Start isEmpty. Operand 42015 states and 56061 transitions. [2018-11-07 17:53:00,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2018-11-07 17:53:00,316 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 17:53:00,316 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 17:53:00,317 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 17:53:00,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:53:00,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1436582150, now seen corresponding path program 1 times [2018-11-07 17:53:00,317 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 17:53:00,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:53:00,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 17:53:00,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:53:00,319 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 17:53:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 17:53:00,873 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 112 proven. 94 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-07 17:53:00,874 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 17:53:00,874 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 17:53:00,874 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 293 with the following transitions: [2018-11-07 17:53:00,874 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1911], [1913], [1916], [1924], [1932], [1940], [1948], [1956], [1964], [1972], [1980], [1988], [1996], [2004], [2012], [2020], [2028], [2036], [2044], [2052], [2060], [2068], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2460], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2492], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-07 17:53:00,879 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 17:53:00,879 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 17:53:01,219 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 17:53:01,220 INFO L272 AbstractInterpreter]: Visited 112 different actions 217 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 17:53:01,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:53:01,258 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 17:53:01,802 INFO L227 lantSequenceWeakener]: Weakened 289 states. On average, predicates are now at 75.01% of their original sizes. [2018-11-07 17:53:01,802 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 17:53:02,748 INFO L415 sIntCurrentIteration]: We unified 291 AI predicates to 291 [2018-11-07 17:53:02,749 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 17:53:02,749 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 17:53:02,749 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-07 17:53:02,749 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 17:53:02,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 17:53:02,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 17:53:02,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-07 17:53:02,751 INFO L87 Difference]: Start difference. First operand 42015 states and 56061 transitions. Second operand 11 states. [2018-11-07 17:53:06,765 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 17:53:38,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 17:53:38,938 INFO L93 Difference]: Finished difference Result 84798 states and 113061 transitions. [2018-11-07 17:53:38,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-07 17:53:38,939 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 292 [2018-11-07 17:53:38,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 17:53:39,105 INFO L225 Difference]: With dead ends: 84798 [2018-11-07 17:53:39,105 INFO L226 Difference]: Without dead ends: 43557 [2018-11-07 17:53:39,181 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 300 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2018-11-07 17:53:39,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43557 states. [2018-11-07 17:53:39,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43557 to 43554. [2018-11-07 17:53:39,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43554 states. [2018-11-07 17:53:39,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43554 states to 43554 states and 57623 transitions. [2018-11-07 17:53:39,976 INFO L78 Accepts]: Start accepts. Automaton has 43554 states and 57623 transitions. Word has length 292 [2018-11-07 17:53:39,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 17:53:39,977 INFO L480 AbstractCegarLoop]: Abstraction has 43554 states and 57623 transitions. [2018-11-07 17:53:39,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-07 17:53:39,977 INFO L276 IsEmpty]: Start isEmpty. Operand 43554 states and 57623 transitions. [2018-11-07 17:53:39,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2018-11-07 17:53:39,988 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 17:53:39,988 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 17:53:39,989 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 17:53:39,989 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:53:39,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1384573725, now seen corresponding path program 1 times [2018-11-07 17:53:39,989 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 17:53:39,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:53:39,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 17:53:39,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:53:39,991 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 17:53:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 17:53:40,376 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 23 proven. 67 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-11-07 17:53:40,377 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 17:53:40,377 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 17:53:40,377 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 324 with the following transitions: [2018-11-07 17:53:40,378 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1911], [1913], [1916], [1924], [1932], [1940], [1948], [1956], [1964], [1972], [1980], [1988], [1996], [2004], [2012], [2020], [2028], [2036], [2044], [2052], [2060], [2068], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2680], [2681], [2685], [2689], [2693], [2697], [2700], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-07 17:53:40,382 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 17:53:40,382 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 17:53:40,542 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 17:53:40,782 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 17:53:40,783 INFO L272 AbstractInterpreter]: Visited 163 different actions 320 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 17:53:40,802 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:53:40,802 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 17:53:42,656 INFO L227 lantSequenceWeakener]: Weakened 45 states. On average, predicates are now at 76.16% of their original sizes. [2018-11-07 17:53:42,657 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 17:53:43,004 INFO L415 sIntCurrentIteration]: We unified 322 AI predicates to 322 [2018-11-07 17:53:43,004 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 17:53:43,005 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 17:53:43,005 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 24 [2018-11-07 17:53:43,005 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 17:53:43,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-07 17:53:43,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-07 17:53:43,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2018-11-07 17:53:43,006 INFO L87 Difference]: Start difference. First operand 43554 states and 57623 transitions. Second operand 20 states. Received shutdown request... [2018-11-07 17:54:51,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-07 17:54:51,285 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 17:54:51,291 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 17:54:51,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 05:54:51 BoogieIcfgContainer [2018-11-07 17:54:51,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 17:54:51,292 INFO L168 Benchmark]: Toolchain (without parser) took 215018.04 ms. Allocated memory was 1.5 GB in the beginning and 4.6 GB in the end (delta: 3.1 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-11-07 17:54:51,294 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 17:54:51,294 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2145.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-11-07 17:54:51,295 INFO L168 Benchmark]: Boogie Procedure Inliner took 308.49 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 770.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. [2018-11-07 17:54:51,296 INFO L168 Benchmark]: Boogie Preprocessor took 219.36 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2018-11-07 17:54:51,297 INFO L168 Benchmark]: RCFGBuilder took 8898.91 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 165.7 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -172.6 MB). Peak memory consumption was 673.9 MB. Max. memory is 7.1 GB. [2018-11-07 17:54:51,298 INFO L168 Benchmark]: TraceAbstraction took 203441.05 ms. Allocated memory was 2.4 GB in the beginning and 4.6 GB in the end (delta: 2.2 GB). Free memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: -366.3 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-11-07 17:54:51,306 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2145.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 308.49 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 770.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 219.36 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8898.91 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 165.7 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -172.6 MB). Peak memory consumption was 673.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 203441.05 ms. Allocated memory was 2.4 GB in the beginning and 4.6 GB in the end (delta: 2.2 GB). Free memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: -366.3 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 45). Cancelled while BasicCegarLoop was constructing difference of abstraction (43554states) and FLOYD_HOARE automaton (currently 23 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (40956 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 203.3s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 186.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4432 SDtfs, 24202 SDslu, 1783 SDs, 0 SdLazy, 40976 SolverSat, 6248 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 92.0s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 1426 GetRequests, 1335 SyntacticMatches, 8 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43554occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.3s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 0.9973796738786133 AbsIntWeakeningRatio, 0.10609756097560975 AbsIntAvgWeakeningVarsNumRemoved, 16.5 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 338 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 1881 NumberOfCodeBlocks, 1881 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2138 ConstructedInterpolants, 0 QuantifiedInterpolants, 1510269 SizeOfPredicates, 2 NumberOfNonLiveVariables, 480 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 630/983 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown