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/Problem17_label27_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 21:03:31,177 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 21:03:31,179 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 21:03:31,192 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 21:03:31,192 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 21:03:31,193 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 21:03:31,195 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 21:03:31,197 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 21:03:31,198 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 21:03:31,200 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 21:03:31,201 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 21:03:31,202 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 21:03:31,202 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 21:03:31,203 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 21:03:31,205 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 21:03:31,205 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 21:03:31,206 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 21:03:31,208 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 21:03:31,210 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 21:03:31,212 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 21:03:31,213 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 21:03:31,214 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 21:03:31,216 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 21:03:31,216 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 21:03:31,217 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 21:03:31,218 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 21:03:31,219 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 21:03:31,219 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 21:03:31,220 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 21:03:31,221 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 21:03:31,222 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 21:03:31,222 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 21:03:31,223 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 21:03:31,223 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 21:03:31,224 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 21:03:31,225 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 21:03:31,225 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 21:03:31,249 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 21:03:31,249 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 21:03:31,251 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 21:03:31,251 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 21:03:31,251 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 21:03:31,251 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 21:03:31,252 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 21:03:31,252 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 21:03:31,252 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 21:03:31,253 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 21:03:31,253 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 21:03:31,253 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 21:03:31,253 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 21:03:31,254 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 21:03:31,254 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 21:03:31,254 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 21:03:31,254 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 21:03:31,255 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 21:03:31,256 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 21:03:31,256 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 21:03:31,256 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 21:03:31,256 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 21:03:31,256 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 21:03:31,257 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 21:03:31,257 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 21:03:31,257 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 21:03:31,257 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 21:03:31,258 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 21:03:31,258 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 21:03:31,258 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 21:03:31,258 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 21:03:31,258 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 21:03:31,258 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 21:03:31,259 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 21:03:31,259 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 21:03:31,302 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 21:03:31,317 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 21:03:31,322 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 21:03:31,324 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 21:03:31,324 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 21:03:31,325 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label27_true-unreach-call.c [2018-11-07 21:03:31,396 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/399a9ab81/b677fcd102a848ab89c0db4e09f54af1/FLAG5847899b8 [2018-11-07 21:03:32,065 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 21:03:32,066 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label27_true-unreach-call.c [2018-11-07 21:03:32,093 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/399a9ab81/b677fcd102a848ab89c0db4e09f54af1/FLAG5847899b8 [2018-11-07 21:03:32,109 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/399a9ab81/b677fcd102a848ab89c0db4e09f54af1 [2018-11-07 21:03:32,121 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 21:03:32,123 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 21:03:32,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 21:03:32,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 21:03:32,130 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 21:03:32,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:03:32" (1/1) ... [2018-11-07 21:03:32,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@386f4038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:03:32, skipping insertion in model container [2018-11-07 21:03:32,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:03:32" (1/1) ... [2018-11-07 21:03:32,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 21:03:32,275 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 21:03:33,317 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 21:03:33,322 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 21:03:33,761 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 21:03:33,786 INFO L193 MainTranslator]: Completed translation [2018-11-07 21:03:33,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:03:33 WrapperNode [2018-11-07 21:03:33,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 21:03:33,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 21:03:33,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 21:03:33,788 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 21:03:33,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:03:33" (1/1) ... [2018-11-07 21:03:34,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:03:33" (1/1) ... [2018-11-07 21:03:34,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 21:03:34,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 21:03:34,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 21:03:34,039 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 21:03:34,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:03:33" (1/1) ... [2018-11-07 21:03:34,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:03:33" (1/1) ... [2018-11-07 21:03:34,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:03:33" (1/1) ... [2018-11-07 21:03:34,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:03:33" (1/1) ... [2018-11-07 21:03:34,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:03:33" (1/1) ... [2018-11-07 21:03:34,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:03:33" (1/1) ... [2018-11-07 21:03:34,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:03:33" (1/1) ... [2018-11-07 21:03:34,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 21:03:34,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 21:03:34,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 21:03:34,222 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 21:03:34,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:03:33" (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 21:03:34,293 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 21:03:34,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 21:03:34,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 21:03:34,295 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 21:03:34,295 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 21:03:34,295 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 21:03:34,296 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 21:03:34,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 21:03:34,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 21:03:34,296 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 21:03:34,296 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 21:03:42,121 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 21:03:42,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:03:42 BoogieIcfgContainer [2018-11-07 21:03:42,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 21:03:42,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 21:03:42,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 21:03:42,128 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 21:03:42,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:03:32" (1/3) ... [2018-11-07 21:03:42,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6bcb4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:03:42, skipping insertion in model container [2018-11-07 21:03:42,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:03:33" (2/3) ... [2018-11-07 21:03:42,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6bcb4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:03:42, skipping insertion in model container [2018-11-07 21:03:42,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:03:42" (3/3) ... [2018-11-07 21:03:42,132 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label27_true-unreach-call.c [2018-11-07 21:03:42,143 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 21:03:42,154 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 21:03:42,174 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 21:03:42,223 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 21:03:42,223 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 21:03:42,223 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 21:03:42,223 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 21:03:42,223 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 21:03:42,224 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 21:03:42,224 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 21:03:42,224 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 21:03:42,270 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-11-07 21:03:42,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-07 21:03:42,280 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:03:42,282 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] [2018-11-07 21:03:42,284 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:03:42,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:03:42,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1584552652, now seen corresponding path program 1 times [2018-11-07 21:03:42,294 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:03:42,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:03:42,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:03:42,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:03:42,346 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:03:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:03:42,815 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-11-07 21:03:42,827 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 21:03:42,829 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:03:42,829 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 21:03:42,830 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:03:42,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 21:03:42,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 21:03:42,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 21:03:42,855 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-11-07 21:03:55,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:03:55,333 INFO L93 Difference]: Finished difference Result 2133 states and 3959 transitions. [2018-11-07 21:03:55,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 21:03:55,334 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2018-11-07 21:03:55,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:03:55,365 INFO L225 Difference]: With dead ends: 2133 [2018-11-07 21:03:55,365 INFO L226 Difference]: Without dead ends: 1523 [2018-11-07 21:03:55,379 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 21:03:55,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2018-11-07 21:03:55,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1516. [2018-11-07 21:03:55,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1516 states. [2018-11-07 21:03:55,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2287 transitions. [2018-11-07 21:03:55,536 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2287 transitions. Word has length 48 [2018-11-07 21:03:55,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:03:55,537 INFO L480 AbstractCegarLoop]: Abstraction has 1516 states and 2287 transitions. [2018-11-07 21:03:55,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 21:03:55,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2287 transitions. [2018-11-07 21:03:55,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-11-07 21:03:55,544 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:03:55,545 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:03:55,545 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:03:55,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:03:55,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1770043202, now seen corresponding path program 1 times [2018-11-07 21:03:55,546 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:03:55,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:03:55,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:03:55,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:03:55,548 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:03:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:03:56,016 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:03:56,016 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:03:56,016 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:03:56,017 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 124 with the following transitions: [2018-11-07 21:03:56,020 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [994], [996], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 21:03:56,083 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:03:56,083 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:03:56,543 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:03:57,232 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 21:03:57,234 INFO L272 AbstractInterpreter]: Visited 83 different actions 235 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 21:03:57,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:03:57,280 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 21:03:57,280 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:03:57,281 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 21:03:57,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:03:57,300 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 21:03:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:03:57,404 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 21:04:01,031 WARN L179 SmtUtils]: Spent 3.20 s on a formula simplification that was a NOOP. DAG size: 42 [2018-11-07 21:04:01,920 WARN L179 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 21 [2018-11-07 21:04:02,172 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:04:02,172 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 21:04:03,063 WARN L179 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 25 [2018-11-07 21:04:03,425 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:04:03,455 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-07 21:04:03,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 15 [2018-11-07 21:04:03,456 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:04:03,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 21:04:03,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 21:04:03,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-11-07 21:04:03,458 INFO L87 Difference]: Start difference. First operand 1516 states and 2287 transitions. Second operand 6 states. [2018-11-07 21:07:16,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:07:16,168 INFO L93 Difference]: Finished difference Result 4869 states and 7650 transitions. [2018-11-07 21:07:16,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 21:07:16,170 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2018-11-07 21:07:16,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:07:16,195 INFO L225 Difference]: With dead ends: 4869 [2018-11-07 21:07:16,195 INFO L226 Difference]: Without dead ends: 3359 [2018-11-07 21:07:16,204 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 240 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-11-07 21:07:16,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3359 states. [2018-11-07 21:07:16,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3359 to 3349. [2018-11-07 21:07:16,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3349 states. [2018-11-07 21:07:16,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3349 states to 3349 states and 5057 transitions. [2018-11-07 21:07:16,319 INFO L78 Accepts]: Start accepts. Automaton has 3349 states and 5057 transitions. Word has length 123 [2018-11-07 21:07:16,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:07:16,322 INFO L480 AbstractCegarLoop]: Abstraction has 3349 states and 5057 transitions. [2018-11-07 21:07:16,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 21:07:16,322 INFO L276 IsEmpty]: Start isEmpty. Operand 3349 states and 5057 transitions. [2018-11-07 21:07:16,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-07 21:07:16,335 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:07:16,336 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:07:16,336 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:07:16,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:07:16,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1103220262, now seen corresponding path program 1 times [2018-11-07 21:07:16,337 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:07:16,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:07:16,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:07:16,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:07:16,339 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:07:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:07:16,670 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 35 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:07:16,670 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:07:16,671 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:07:16,671 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-11-07 21:07:16,671 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [994], [996], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 21:07:16,677 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:07:16,677 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:07:16,783 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:07:17,320 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 21:07:17,320 INFO L272 AbstractInterpreter]: Visited 96 different actions 274 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 21:07:17,355 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:07:17,355 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 21:07:17,355 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:07:17,356 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 21:07:17,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:07:17,369 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 21:07:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:07:17,446 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 21:07:17,615 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:07:17,616 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 21:07:18,077 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:07:18,109 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 21:07:18,110 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-11-07 21:07:18,110 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:07:18,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 21:07:18,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 21:07:18,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 21:07:18,111 INFO L87 Difference]: Start difference. First operand 3349 states and 5057 transitions. Second operand 3 states. [2018-11-07 21:07:21,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:07:21,888 INFO L93 Difference]: Finished difference Result 9745 states and 15091 transitions. [2018-11-07 21:07:21,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 21:07:21,890 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2018-11-07 21:07:21,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:07:21,937 INFO L225 Difference]: With dead ends: 9745 [2018-11-07 21:07:21,937 INFO L226 Difference]: Without dead ends: 6402 [2018-11-07 21:07:21,956 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 271 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 21:07:21,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6402 states. [2018-11-07 21:07:22,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6402 to 6397. [2018-11-07 21:07:22,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6397 states. [2018-11-07 21:07:22,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6397 states to 6397 states and 9660 transitions. [2018-11-07 21:07:22,161 INFO L78 Accepts]: Start accepts. Automaton has 6397 states and 9660 transitions. Word has length 136 [2018-11-07 21:07:22,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:07:22,162 INFO L480 AbstractCegarLoop]: Abstraction has 6397 states and 9660 transitions. [2018-11-07 21:07:22,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 21:07:22,162 INFO L276 IsEmpty]: Start isEmpty. Operand 6397 states and 9660 transitions. [2018-11-07 21:07:22,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-11-07 21:07:22,171 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:07:22,171 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:07:22,172 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:07:22,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:07:22,172 INFO L82 PathProgramCache]: Analyzing trace with hash -433411345, now seen corresponding path program 1 times [2018-11-07 21:07:22,172 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:07:22,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:07:22,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:07:22,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:07:22,174 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:07:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:07:22,453 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 21:07:22,515 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:07:22,515 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:07:22,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 21:07:22,516 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:07:22,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 21:07:22,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 21:07:22,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 21:07:22,517 INFO L87 Difference]: Start difference. First operand 6397 states and 9660 transitions. Second operand 6 states. [2018-11-07 21:07:27,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:07:27,223 INFO L93 Difference]: Finished difference Result 15630 states and 24588 transitions. [2018-11-07 21:07:27,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 21:07:27,224 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-11-07 21:07:27,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:07:27,274 INFO L225 Difference]: With dead ends: 15630 [2018-11-07 21:07:27,274 INFO L226 Difference]: Without dead ends: 9239 [2018-11-07 21:07:27,299 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 21:07:27,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9239 states. [2018-11-07 21:07:27,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9239 to 9172. [2018-11-07 21:07:27,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9172 states. [2018-11-07 21:07:27,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9172 states to 9172 states and 12911 transitions. [2018-11-07 21:07:27,542 INFO L78 Accepts]: Start accepts. Automaton has 9172 states and 12911 transitions. Word has length 145 [2018-11-07 21:07:27,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:07:27,543 INFO L480 AbstractCegarLoop]: Abstraction has 9172 states and 12911 transitions. [2018-11-07 21:07:27,543 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 21:07:27,543 INFO L276 IsEmpty]: Start isEmpty. Operand 9172 states and 12911 transitions. [2018-11-07 21:07:27,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-11-07 21:07:27,547 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:07:27,548 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:07:27,548 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:07:27,548 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:07:27,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1138873311, now seen corresponding path program 1 times [2018-11-07 21:07:27,549 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:07:27,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:07:27,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:07:27,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:07:27,550 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:07:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:07:27,915 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:07:27,915 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:07:27,916 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 21:07:27,916 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:07:27,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 21:07:27,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 21:07:27,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 21:07:27,917 INFO L87 Difference]: Start difference. First operand 9172 states and 12911 transitions. Second operand 5 states. [2018-11-07 21:07:37,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:07:37,533 INFO L93 Difference]: Finished difference Result 28816 states and 41952 transitions. [2018-11-07 21:07:37,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 21:07:37,537 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 186 [2018-11-07 21:07:37,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:07:37,612 INFO L225 Difference]: With dead ends: 28816 [2018-11-07 21:07:37,612 INFO L226 Difference]: Without dead ends: 19650 [2018-11-07 21:07:37,655 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 21:07:37,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19650 states. [2018-11-07 21:07:38,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19650 to 19583. [2018-11-07 21:07:38,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19583 states. [2018-11-07 21:07:38,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19583 states to 19583 states and 26303 transitions. [2018-11-07 21:07:38,065 INFO L78 Accepts]: Start accepts. Automaton has 19583 states and 26303 transitions. Word has length 186 [2018-11-07 21:07:38,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:07:38,066 INFO L480 AbstractCegarLoop]: Abstraction has 19583 states and 26303 transitions. [2018-11-07 21:07:38,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 21:07:38,066 INFO L276 IsEmpty]: Start isEmpty. Operand 19583 states and 26303 transitions. [2018-11-07 21:07:38,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2018-11-07 21:07:38,073 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:07:38,073 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 21:07:38,074 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:07:38,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:07:38,074 INFO L82 PathProgramCache]: Analyzing trace with hash -170678852, now seen corresponding path program 1 times [2018-11-07 21:07:38,074 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:07:38,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:07:38,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:07:38,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:07:38,076 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:07:38,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:07:38,682 WARN L179 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-11-07 21:07:38,862 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 83 proven. 85 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-07 21:07:38,862 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:07:38,862 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:07:38,862 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 231 with the following transitions: [2018-11-07 21:07:38,863 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [994], [996], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1303], [1306], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 21:07:38,867 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:07:38,868 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:07:39,017 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:07:39,509 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 21:07:39,509 INFO L272 AbstractInterpreter]: Visited 103 different actions 295 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 21:07:39,547 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:07:39,548 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 21:07:39,548 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:07:39,548 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 21:07:39,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:07:39,562 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 21:07:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:07:39,650 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 21:07:40,103 WARN L179 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 21 [2018-11-07 21:07:40,366 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 87 proven. 55 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-11-07 21:07:40,366 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 21:07:41,264 WARN L179 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 24 [2018-11-07 21:07:41,747 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 87 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:07:41,767 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 21:07:41,767 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9] total 19 [2018-11-07 21:07:41,767 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 21:07:41,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-07 21:07:41,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-07 21:07:41,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2018-11-07 21:07:41,769 INFO L87 Difference]: Start difference. First operand 19583 states and 26303 transitions. Second operand 13 states. Received shutdown request... [2018-11-07 21:07:51,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-11-07 21:07:51,842 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 21:07:51,847 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 21:07:51,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:07:51 BoogieIcfgContainer [2018-11-07 21:07:51,848 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 21:07:51,849 INFO L168 Benchmark]: Toolchain (without parser) took 259727.30 ms. Allocated memory was 1.5 GB in the beginning and 3.0 GB in the end (delta: 1.4 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-11-07 21:07:51,850 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 21:07:51,850 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1663.24 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-11-07 21:07:51,851 INFO L168 Benchmark]: Boogie Procedure Inliner took 251.15 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 792.2 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -975.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2018-11-07 21:07:51,852 INFO L168 Benchmark]: Boogie Preprocessor took 182.24 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2018-11-07 21:07:51,853 INFO L168 Benchmark]: RCFGBuilder took 7901.44 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 450.0 MB). Peak memory consumption was 450.0 MB. Max. memory is 7.1 GB. [2018-11-07 21:07:51,854 INFO L168 Benchmark]: TraceAbstraction took 249723.78 ms. Allocated memory was 2.3 GB in the beginning and 3.0 GB in the end (delta: 626.5 MB). Free memory was 1.8 GB in the beginning and 2.8 GB in the end (delta: -1.0 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 21:07:51,859 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 1663.24 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 251.15 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 792.2 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -975.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 182.24 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7901.44 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 450.0 MB). Peak memory consumption was 450.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 249723.78 ms. Allocated memory was 2.3 GB in the beginning and 3.0 GB in the end (delta: 626.5 MB). Free memory was 1.8 GB in the beginning and 2.8 GB in the end (delta: -1.0 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 131]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 131). Cancelled while BasicCegarLoop was constructing difference of abstraction (19583states) and FLOYD_HOARE automaton (currently 35 states, 13 states before enhancement),while ReachableStatesComputation was computing reachable states (10798 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 249.6s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 233.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2212 SDtfs, 12135 SDslu, 1775 SDs, 0 SdLazy, 19771 SolverSat, 4971 SolverUnsat, 86 SolverUnknown, 0 SolverNotchecked, 225.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1055 GetRequests, 972 SyntacticMatches, 9 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19583occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.6s AbstIntTime, 3 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 156 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 10.9s InterpolantComputationTime, 1357 NumberOfCodeBlocks, 1357 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1834 ConstructedInterpolants, 215 QuantifiedInterpolants, 2758722 SizeOfPredicates, 12 NumberOfNonLiveVariables, 990 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 531/838 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown