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/Problem06_label40_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 19:24:37,179 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 19:24:37,181 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 19:24:37,192 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 19:24:37,192 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 19:24:37,193 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 19:24:37,195 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 19:24:37,196 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 19:24:37,198 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 19:24:37,199 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 19:24:37,200 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 19:24:37,200 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 19:24:37,201 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 19:24:37,202 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 19:24:37,203 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 19:24:37,204 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 19:24:37,205 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 19:24:37,207 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 19:24:37,209 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 19:24:37,210 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 19:24:37,211 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 19:24:37,212 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 19:24:37,215 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 19:24:37,215 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 19:24:37,216 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 19:24:37,216 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 19:24:37,217 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 19:24:37,218 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 19:24:37,219 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 19:24:37,221 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 19:24:37,221 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 19:24:37,222 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 19:24:37,222 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 19:24:37,222 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 19:24:37,223 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 19:24:37,224 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 19:24:37,224 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 19:24:37,250 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 19:24:37,250 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 19:24:37,252 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 19:24:37,252 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 19:24:37,252 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 19:24:37,252 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 19:24:37,253 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 19:24:37,253 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 19:24:37,253 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 19:24:37,253 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 19:24:37,253 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 19:24:37,254 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 19:24:37,254 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 19:24:37,255 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 19:24:37,255 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 19:24:37,255 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 19:24:37,255 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 19:24:37,255 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 19:24:37,256 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 19:24:37,257 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 19:24:37,257 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 19:24:37,257 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 19:24:37,257 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 19:24:37,257 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 19:24:37,258 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 19:24:37,258 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 19:24:37,258 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 19:24:37,258 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 19:24:37,259 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 19:24:37,259 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 19:24:37,259 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 19:24:37,259 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 19:24:37,259 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 19:24:37,260 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 19:24:37,260 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 19:24:37,304 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 19:24:37,317 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 19:24:37,321 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 19:24:37,322 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 19:24:37,323 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 19:24:37,324 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem06_label40_true-unreach-call.c [2018-11-07 19:24:37,381 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6720213d0/539bf57fc2894079bc2a599cf640a890/FLAGd3b73ed70 [2018-11-07 19:24:38,281 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 19:24:38,282 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem06_label40_true-unreach-call.c [2018-11-07 19:24:38,325 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6720213d0/539bf57fc2894079bc2a599cf640a890/FLAGd3b73ed70 [2018-11-07 19:24:38,344 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6720213d0/539bf57fc2894079bc2a599cf640a890 [2018-11-07 19:24:38,356 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 19:24:38,359 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 19:24:38,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 19:24:38,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 19:24:38,367 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 19:24:38,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:24:38" (1/1) ... [2018-11-07 19:24:38,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1342862e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:24:38, skipping insertion in model container [2018-11-07 19:24:38,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:24:38" (1/1) ... [2018-11-07 19:24:38,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 19:24:38,616 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 19:24:40,599 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 19:24:40,605 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 19:24:41,688 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 19:24:41,748 INFO L193 MainTranslator]: Completed translation [2018-11-07 19:24:41,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:24:41 WrapperNode [2018-11-07 19:24:41,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 19:24:41,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 19:24:41,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 19:24:41,751 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 19:24:41,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:24:41" (1/1) ... [2018-11-07 19:24:42,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:24:41" (1/1) ... [2018-11-07 19:24:42,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 19:24:42,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 19:24:42,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 19:24:42,275 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 19:24:42,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:24:41" (1/1) ... [2018-11-07 19:24:42,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:24:41" (1/1) ... [2018-11-07 19:24:42,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:24:41" (1/1) ... [2018-11-07 19:24:42,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:24:41" (1/1) ... [2018-11-07 19:24:42,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:24:41" (1/1) ... [2018-11-07 19:24:42,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:24:41" (1/1) ... [2018-11-07 19:24:42,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:24:41" (1/1) ... [2018-11-07 19:24:42,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 19:24:42,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 19:24:42,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 19:24:42,645 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 19:24:42,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:24:41" (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 19:24:42,711 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 19:24:42,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 19:24:42,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 19:24:42,712 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-11-07 19:24:42,712 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-11-07 19:24:42,712 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 19:24:42,713 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 19:24:42,713 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 19:24:42,713 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 19:24:42,713 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 19:24:42,713 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 19:24:42,713 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 19:24:42,714 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 19:24:42,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 19:24:42,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 19:24:42,715 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 19:24:42,715 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 19:24:54,050 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 19:24:54,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:24:54 BoogieIcfgContainer [2018-11-07 19:24:54,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 19:24:54,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 19:24:54,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 19:24:54,055 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 19:24:54,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:24:38" (1/3) ... [2018-11-07 19:24:54,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@287e795e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:24:54, skipping insertion in model container [2018-11-07 19:24:54,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:24:41" (2/3) ... [2018-11-07 19:24:54,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@287e795e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:24:54, skipping insertion in model container [2018-11-07 19:24:54,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:24:54" (3/3) ... [2018-11-07 19:24:54,059 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem06_label40_true-unreach-call.c [2018-11-07 19:24:54,069 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 19:24:54,079 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 19:24:54,096 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 19:24:54,160 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 19:24:54,160 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 19:24:54,160 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 19:24:54,161 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 19:24:54,161 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 19:24:54,161 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 19:24:54,161 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 19:24:54,161 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 19:24:54,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states. [2018-11-07 19:24:54,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 987 [2018-11-07 19:24:54,288 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 19:24:54,290 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:24:54,293 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 19:24:54,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 19:24:54,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1887685120, now seen corresponding path program 1 times [2018-11-07 19:24:54,303 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 19:24:54,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 19:24:54,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 19:24:54,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 19:24:54,351 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 19:24:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 19:24:56,571 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 19:24:57,858 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 19:24:57,860 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 19:24:57,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 19:24:57,860 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 19:24:57,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 19:24:57,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 19:24:57,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 19:24:57,883 INFO L87 Difference]: Start difference. First operand 1316 states. Second operand 3 states. [2018-11-07 19:25:07,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 19:25:07,656 INFO L93 Difference]: Finished difference Result 3736 states and 6973 transitions. [2018-11-07 19:25:07,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 19:25:07,658 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 986 [2018-11-07 19:25:07,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 19:25:07,700 INFO L225 Difference]: With dead ends: 3736 [2018-11-07 19:25:07,701 INFO L226 Difference]: Without dead ends: 2418 [2018-11-07 19:25:07,714 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 19:25:07,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2418 states. [2018-11-07 19:25:07,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2418 to 2399. [2018-11-07 19:25:07,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2399 states. [2018-11-07 19:25:07,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2399 states to 2399 states and 4263 transitions. [2018-11-07 19:25:07,901 INFO L78 Accepts]: Start accepts. Automaton has 2399 states and 4263 transitions. Word has length 986 [2018-11-07 19:25:07,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 19:25:07,905 INFO L480 AbstractCegarLoop]: Abstraction has 2399 states and 4263 transitions. [2018-11-07 19:25:07,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 19:25:07,906 INFO L276 IsEmpty]: Start isEmpty. Operand 2399 states and 4263 transitions. [2018-11-07 19:25:07,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 996 [2018-11-07 19:25:07,941 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 19:25:07,942 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:25:07,942 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 19:25:07,943 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 19:25:07,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1751779168, now seen corresponding path program 1 times [2018-11-07 19:25:07,943 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 19:25:07,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 19:25:07,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 19:25:07,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 19:25:07,945 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 19:25:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 19:25:08,383 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 19:25:09,512 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 19:25:09,512 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 19:25:09,513 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 19:25:09,513 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 19:25:09,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 19:25:09,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 19:25:09,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 19:25:09,519 INFO L87 Difference]: Start difference. First operand 2399 states and 4263 transitions. Second operand 5 states. [2018-11-07 19:25:21,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 19:25:21,719 INFO L93 Difference]: Finished difference Result 5945 states and 10532 transitions. [2018-11-07 19:25:21,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 19:25:21,727 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 995 [2018-11-07 19:25:21,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 19:25:21,751 INFO L225 Difference]: With dead ends: 5945 [2018-11-07 19:25:21,751 INFO L226 Difference]: Without dead ends: 3552 [2018-11-07 19:25:21,758 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 19:25:21,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3552 states. [2018-11-07 19:25:21,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3552 to 3492. [2018-11-07 19:25:21,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3492 states. [2018-11-07 19:25:21,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3492 states to 3492 states and 5595 transitions. [2018-11-07 19:25:21,851 INFO L78 Accepts]: Start accepts. Automaton has 3492 states and 5595 transitions. Word has length 995 [2018-11-07 19:25:21,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 19:25:21,851 INFO L480 AbstractCegarLoop]: Abstraction has 3492 states and 5595 transitions. [2018-11-07 19:25:21,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 19:25:21,852 INFO L276 IsEmpty]: Start isEmpty. Operand 3492 states and 5595 transitions. [2018-11-07 19:25:21,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1009 [2018-11-07 19:25:21,877 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 19:25:21,878 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:25:21,878 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 19:25:21,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 19:25:21,879 INFO L82 PathProgramCache]: Analyzing trace with hash 345154696, now seen corresponding path program 1 times [2018-11-07 19:25:21,879 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 19:25:21,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 19:25:21,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 19:25:21,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 19:25:21,880 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 19:25:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 19:25:22,838 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 19:25:22,838 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 19:25:22,839 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 19:25:22,840 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1009 with the following transitions: [2018-11-07 19:25:22,846 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [17], [28], [32], [36], [40], [51], [55], [59], [63], [67], [71], [82], [86], [90], [101], [105], [109], [113], [117], [121], [125], [129], [133], [137], [141], [145], [149], [153], [157], [161], [165], [169], [173], [177], [181], [185], [189], [193], [197], [201], [212], [216], [220], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [551], [553], [712], [716], [720], [724], [728], [732], [736], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [842], [846], [857], [861], [865], [869], [873], [884], [888], [892], [896], [900], [904], [915], [919], [923], [927], [931], [935], [939], [950], [954], [958], [962], [966], [970], [981], [992], [1003], [1007], [1011], [1022], [1026], [1030], [1034], [1038], [1042], [1046], [1050], [1054], [1058], [1062], [1073], [1077], [1081], [1085], [1089], [1100], [1111], [1115], [1126], [1130], [1134], [1138], [1142], [1146], [1150], [1154], [1158], [1162], [1166], [1177], [1188], [1199], [1203], [1207], [1211], [1215], [1219], [1223], [1227], [1231], [1242], [1246], [1250], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1308], [1319], [1323], [1327], [1331], [1335], [1339], [1343], [1347], [1358], [1362], [1366], [1370], [1374], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1476], [1480], [1484], [1488], [1492], [1496], [1507], [1511], [1515], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1574], [1578], [1582], [1586], [1590], [1594], [1598], [1602], [1606], [1610], [1614], [1618], [1622], [1626], [1637], [1641], [1645], [1649], [1653], [1657], [1661], [1665], [1669], [1673], [1684], [1695], [1699], [1703], [1707], [1711], [1722], [1733], [1737], [1741], [1752], [1756], [1760], [1764], [1768], [1772], [1776], [1780], [1784], [1788], [1792], [1796], [1800], [1811], [1815], [1819], [1823], [1827], [1831], [1835], [1839], [1843], [1847], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1948], [1952], [1956], [1967], [1971], [1975], [1979], [1983], [1987], [1991], [1995], [2006], [2010], [2021], [2025], [2029], [2033], [2044], [2048], [2059], [2063], [2067], [2071], [2075], [2079], [2083], [2094], [2098], [2102], [2106], [2110], [2114], [2118], [2122], [2126], [2130], [2134], [2138], [2142], [2153], [2157], [2161], [2165], [2169], [2173], [2184], [2195], [2199], [2210], [2214], [2218], [2222], [2226], [2230], [2234], [2238], [2242], [2246], [2250], [2254], [2258], [2262], [2266], [2270], [2274], [2278], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2372], [2376], [2380], [2384], [2388], [2392], [2396], [2400], [2404], [2408], [2412], [2423], [2427], [2438], [2442], [2446], [2450], [2454], [2458], [2462], [2466], [2470], [2474], [2485], [2489], [2493], [2497], [2501], [2512], [2516], [2520], [2524], [2528], [2532], [2536], [2540], [2544], [2548], [2552], [2556], [2560], [2571], [2575], [2579], [2583], [2587], [2591], [2595], [2599], [2603], [2607], [2611], [2622], [2626], [2630], [2634], [2638], [2642], [2646], [2650], [2654], [2658], [2669], [2673], [2684], [2688], [2692], [2696], [2700], [2704], [2708], [2712], [2716], [2720], [2724], [2728], [2732], [2736], [2747], [2751], [2762], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2888], [2892], [2896], [2900], [2904], [2908], [2912], [2916], [2920], [2924], [2935], [2939], [2943], [2947], [2958], [2962], [2966], [2970], [2981], [2985], [2989], [2993], [2997], [3001], [3005], [3009], [3013], [3017], [3021], [3025], [3029], [3033], [3044], [3048], [3052], [3056], [3060], [3064], [3068], [3072], [3076], [3080], [3084], [3088], [3092], [3096], [3100], [3104], [3108], [3112], [3123], [3127], [3131], [3135], [3139], [3143], [3147], [3158], [3162], [3166], [3170], [3174], [3185], [3196], [3200], [3204], [3208], [3219], [3223], [3227], [3231], [3235], [3239], [3243], [3247], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3337], [3341], [3345], [3349], [3353], [3364], [3368], [3372], [3376], [3380], [3391], [3395], [3406], [3417], [3421], [3425], [3429], [3433], [3437], [3441], [3445], [3449], [3453], [3457], [3461], [3465], [3469], [3480], [3484], [3488], [3492], [3496], [3500], [3504], [3508], [3519], [3523], [3527], [3531], [3542], [3553], [3557], [3561], [3565], [3569], [3573], [3577], [3581], [3585], [3589], [3593], [3597], [3601], [3605], [3609], [3613], [3617], [3621], [3625], [3629], [3633], [3637], [3641], [3645], [3649], [3653], [3657], [3661], [3665], [3669], [3673], [3677], [3681], [3685], [3689], [3700], [3704], [3708], [3712], [3716], [3720], [3724], [3728], [3732], [3736], [3740], [3744], [3748], [3752], [3756], [3767], [3771], [3775], [3779], [3783], [3787], [3791], [3795], [3799], [3803], [3807], [3811], [3815], [3826], [3830], [3834], [3838], [3842], [3846], [3850], [3854], [3858], [3862], [3873], [3877], [3881], [3885], [3889], [3893], [3897], [3901], [3905], [3909], [3913], [3917], [3928], [3932], [3936], [3940], [3944], [3948], [3952], [3955], [3956], [3960], [3964], [3968], [3971], [3972], [3976], [3987], [3991], [3995], [3999], [4003], [4007], [4011], [4015], [4019], [4023], [4027], [4031], [4035], [4039], [4043], [4047], [4051], [4055], [4059], [4063], [4067], [4078], [4082], [4086], [4097], [4101], [4105], [4109], [4113], [4124], [4128], [4132], [4136], [4140], [4144], [4148], [4152], [4156], [4167], [4178], [4189], [4193], [4197], [4201], [4205], [4209], [4213], [4217], [4221], [4232], [4236], [4240], [4244], [4248], [4252], [4256], [4260], [4264], [4268], [4272], [4276], [4280], [4284], [4288], [4292], [4296], [4300], [4304], [4308], [4312], [4316], [4320], [4324], [4328], [4339], [4343], [4347], [4358], [4362], [4366], [4370], [4374], [4378], [4382], [4393], [4404], [4408], [4412], [4416], [4420], [4424], [4428], [4432], [4436], [4440], [4444], [4455], [4459], [4463], [4467], [4471], [4475], [4479], [4483], [4487], [4491], [4495], [4499], [4503], [4507], [4511], [4515], [4519], [4523], [4527], [4531], [4535], [4539], [4543], [4547], [4551], [4555], [4559], [4563], [4567], [4571], [4575], [4579], [4583], [4587], [4598], [4602], [4613], [4617], [4621], [4632], [4636], [4640], [4644], [4648], [4652], [4656], [4660], [4664], [4668], [4672], [4676], [4680], [4684], [4688], [4692], [4696], [4700], [4704], [4715], [4719], [4723], [4727], [4731], [4742], [4746], [4750], [4754], [4758], [4762], [4766], [4770], [4774], [4778], [4782], [4786], [4790], [4794], [4798], [4802], [4806], [4810], [4814], [4818], [4822], [4826], [4830], [4834], [4845], [4856], [4860], [4864], [4868], [4872], [4876], [4880], [4884], [4888], [4899], [4903], [4907], [4911], [4922], [4933], [4937], [4941], [4945], [4949], [4960], [4964], [4968], [4972], [4976], [4980], [4984], [4988], [4999], [5003], [5007], [5010], [5014], [5018], [5024], [5028], [5030], [5035], [5037], [5039], [5041], [5043], [5044], [5045], [5047], [5048] [2018-11-07 19:25:22,974 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 19:25:22,975 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 19:25:28,891 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 19:25:28,892 INFO L272 AbstractInterpreter]: Visited 987 different actions 987 times. Never merged. Never widened. Never found a fixpoint. Largest state had 88 variables. [2018-11-07 19:25:28,936 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 19:25:28,937 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 19:25:33,468 INFO L227 lantSequenceWeakener]: Weakened 999 states. On average, predicates are now at 70.73% of their original sizes. [2018-11-07 19:25:33,469 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 19:25:34,713 INFO L415 sIntCurrentIteration]: We unified 1007 AI predicates to 1007 [2018-11-07 19:25:34,714 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 19:25:34,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 19:25:34,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [36] imperfect sequences [9] total 43 [2018-11-07 19:25:34,715 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 19:25:34,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-11-07 19:25:34,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-11-07 19:25:34,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1058, Unknown=0, NotChecked=0, Total=1260 [2018-11-07 19:25:34,718 INFO L87 Difference]: Start difference. First operand 3492 states and 5595 transitions. Second operand 36 states. Received shutdown request... [2018-11-07 19:28:33,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-07 19:28:33,834 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 19:28:33,840 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 19:28:33,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 07:28:33 BoogieIcfgContainer [2018-11-07 19:28:33,841 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 19:28:33,842 INFO L168 Benchmark]: Toolchain (without parser) took 235484.60 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -559.4 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-11-07 19:28:33,843 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 19:28:33,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3389.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 359.4 MB). Peak memory consumption was 359.4 MB. Max. memory is 7.1 GB. [2018-11-07 19:28:33,845 INFO L168 Benchmark]: Boogie Procedure Inliner took 524.38 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 831.5 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 91.5 MB. Max. memory is 7.1 GB. [2018-11-07 19:28:33,846 INFO L168 Benchmark]: Boogie Preprocessor took 369.51 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: 52.3 MB). Peak memory consumption was 52.3 MB. Max. memory is 7.1 GB. [2018-11-07 19:28:33,847 INFO L168 Benchmark]: RCFGBuilder took 11406.11 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 159.9 MB). Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 406.1 MB). Peak memory consumption was 668.4 MB. Max. memory is 7.1 GB. [2018-11-07 19:28:33,848 INFO L168 Benchmark]: TraceAbstraction took 219789.03 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 1.8 GB in the beginning and 1.9 GB in the end (delta: -159.8 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-11-07 19:28:33,855 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 3389.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 359.4 MB). Peak memory consumption was 359.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 524.38 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 831.5 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 91.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 369.51 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: 52.3 MB). Peak memory consumption was 52.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11406.11 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 159.9 MB). Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 406.1 MB). Peak memory consumption was 668.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 219789.03 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 1.8 GB in the beginning and 1.9 GB in the end (delta: -159.8 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 9405]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 9405). Cancelled while BasicCegarLoop was constructing difference of abstraction (3492states) and FLOYD_HOARE automaton (currently 18 states, 36 states before enhancement),while ReachableStatesComputation was computing reachable states (6054 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 1316 locations, 1 error locations. TIMEOUT Result, 219.6s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 201.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2182 SDtfs, 8817 SDslu, 2158 SDs, 0 SdLazy, 17072 SolverSat, 3002 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 121.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 1034 GetRequests, 977 SyntacticMatches, 7 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3492occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 6.0s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9997096896540193 AbsIntWeakeningRatio, 0.070506454816286 AbsIntAvgWeakeningVarsNumRemoved, 62.166832174776566 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 79 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 2989 NumberOfCodeBlocks, 2989 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 2986 ConstructedInterpolants, 0 QuantifiedInterpolants, 5992464 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 23/31 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown