java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label13_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:28:42,113 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:28:42,118 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:28:42,131 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:28:42,131 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:28:42,132 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:28:42,134 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:28:42,136 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:28:42,137 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:28:42,138 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:28:42,139 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:28:42,140 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:28:42,141 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:28:42,142 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:28:42,143 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:28:42,144 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:28:42,145 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:28:42,147 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:28:42,149 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:28:42,151 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:28:42,152 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:28:42,153 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:28:42,156 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 21:28:42,157 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 21:28:42,157 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 21:28:42,158 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 21:28:42,159 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 21:28:42,160 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 21:28:42,161 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 21:28:42,162 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 21:28:42,162 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 21:28:42,163 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 21:28:42,163 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 21:28:42,164 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 21:28:42,165 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 21:28:42,166 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 21:28:42,166 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 21:28:42,183 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:28:42,183 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:28:42,184 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:28:42,185 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:28:42,185 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:28:42,185 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:28:42,185 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:28:42,185 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:28:42,186 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:28:42,186 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:28:42,186 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:28:42,186 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:28:42,187 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:28:42,187 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:28:42,187 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:28:42,187 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:28:42,188 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:28:42,188 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:28:42,188 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:28:42,188 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:28:42,188 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:28:42,189 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:28:42,189 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:28:42,189 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:28:42,189 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:28:42,189 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:28:42,190 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:28:42,190 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:28:42,191 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:28:42,191 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:28:42,191 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:28:42,191 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:28:42,191 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:28:42,192 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:28:42,239 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:28:42,260 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:28:42,264 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:28:42,265 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:28:42,266 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:28:42,267 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label13_true-unreach-call.c [2018-10-24 21:28:42,328 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3a5628539/ec405916c79746f389988ff7e874e64d/FLAG990489bef [2018-10-24 21:28:43,115 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:28:43,116 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label13_true-unreach-call.c [2018-10-24 21:28:43,158 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3a5628539/ec405916c79746f389988ff7e874e64d/FLAG990489bef [2018-10-24 21:28:43,180 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3a5628539/ec405916c79746f389988ff7e874e64d [2018-10-24 21:28:43,193 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:28:43,196 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:28:43,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:28:43,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:28:43,203 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:28:43,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:28:43" (1/1) ... [2018-10-24 21:28:43,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b326c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:43, skipping insertion in model container [2018-10-24 21:28:43,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:28:43" (1/1) ... [2018-10-24 21:28:43,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:28:43,410 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:28:44,901 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:28:44,906 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:28:45,739 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:28:45,780 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:28:45,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:45 WrapperNode [2018-10-24 21:28:45,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:28:45,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:28:45,783 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:28:45,783 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:28:45,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:45" (1/1) ... [2018-10-24 21:28:45,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:45" (1/1) ... [2018-10-24 21:28:46,410 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:28:46,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:28:46,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:28:46,411 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:28:46,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:45" (1/1) ... [2018-10-24 21:28:46,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:45" (1/1) ... [2018-10-24 21:28:46,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:45" (1/1) ... [2018-10-24 21:28:46,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:45" (1/1) ... [2018-10-24 21:28:46,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:45" (1/1) ... [2018-10-24 21:28:46,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:45" (1/1) ... [2018-10-24 21:28:46,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:45" (1/1) ... [2018-10-24 21:28:46,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:28:46,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:28:46,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:28:46,786 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:28:46,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 21:28:46,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:28:46,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:28:46,861 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 21:28:46,861 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 21:28:46,861 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 21:28:46,862 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 21:28:46,862 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 21:28:46,862 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 21:28:46,862 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:28:46,862 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:28:46,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:28:46,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:28:46,863 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:28:46,866 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:28:56,957 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:28:56,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:28:56 BoogieIcfgContainer [2018-10-24 21:28:56,958 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:28:56,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:28:56,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:28:56,965 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:28:56,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:28:43" (1/3) ... [2018-10-24 21:28:56,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf2b5a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:28:56, skipping insertion in model container [2018-10-24 21:28:56,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:45" (2/3) ... [2018-10-24 21:28:56,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf2b5a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:28:56, skipping insertion in model container [2018-10-24 21:28:56,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:28:56" (3/3) ... [2018-10-24 21:28:56,970 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label13_true-unreach-call.c [2018-10-24 21:28:56,978 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:28:56,987 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:28:57,004 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:28:57,056 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:28:57,056 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:28:57,056 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:28:57,056 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:28:57,056 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:28:57,057 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:28:57,058 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:28:57,059 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:28:57,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-24 21:28:57,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-10-24 21:28:57,116 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:28:57,117 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] [2018-10-24 21:28:57,119 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:28:57,125 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:28:57,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1465464788, now seen corresponding path program 1 times [2018-10-24 21:28:57,127 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:28:57,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:28:57,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:28:57,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:28:57,187 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:28:57,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:28:57,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:28:57,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:28:57,670 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:28:57,670 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:28:57,677 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:28:57,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:28:57,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:28:57,697 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-10-24 21:29:12,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:29:12,550 INFO L93 Difference]: Finished difference Result 4063 states and 7611 transitions. [2018-10-24 21:29:12,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:29:12,552 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 64 [2018-10-24 21:29:12,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:29:12,608 INFO L225 Difference]: With dead ends: 4063 [2018-10-24 21:29:12,608 INFO L226 Difference]: Without dead ends: 2937 [2018-10-24 21:29:12,622 INFO L605 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 [2018-10-24 21:29:12,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2018-10-24 21:29:12,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 1982. [2018-10-24 21:29:12,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1982 states. [2018-10-24 21:29:12,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1982 states to 1982 states and 3456 transitions. [2018-10-24 21:29:12,813 INFO L78 Accepts]: Start accepts. Automaton has 1982 states and 3456 transitions. Word has length 64 [2018-10-24 21:29:12,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:29:12,814 INFO L481 AbstractCegarLoop]: Abstraction has 1982 states and 3456 transitions. [2018-10-24 21:29:12,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:29:12,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1982 states and 3456 transitions. [2018-10-24 21:29:12,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-10-24 21:29:12,835 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:29:12,836 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:29:12,836 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:29:12,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:29:12,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1113995663, now seen corresponding path program 1 times [2018-10-24 21:29:12,839 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:29:12,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:29:12,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:29:12,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:29:12,841 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:29:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:29:13,285 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:29:13,286 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:29:13,286 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:29:13,286 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:29:13,288 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:29:13,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:29:13,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:29:13,289 INFO L87 Difference]: Start difference. First operand 1982 states and 3456 transitions. Second operand 6 states. [2018-10-24 21:29:29,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:29:29,658 INFO L93 Difference]: Finished difference Result 7277 states and 13063 transitions. [2018-10-24 21:29:29,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:29:29,663 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 135 [2018-10-24 21:29:29,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:29:29,711 INFO L225 Difference]: With dead ends: 7277 [2018-10-24 21:29:29,712 INFO L226 Difference]: Without dead ends: 5301 [2018-10-24 21:29:29,724 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 21:29:29,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5301 states. [2018-10-24 21:29:29,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5301 to 5252. [2018-10-24 21:29:29,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5252 states. [2018-10-24 21:29:29,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5252 states to 5252 states and 8253 transitions. [2018-10-24 21:29:29,870 INFO L78 Accepts]: Start accepts. Automaton has 5252 states and 8253 transitions. Word has length 135 [2018-10-24 21:29:29,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:29:29,870 INFO L481 AbstractCegarLoop]: Abstraction has 5252 states and 8253 transitions. [2018-10-24 21:29:29,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:29:29,871 INFO L276 IsEmpty]: Start isEmpty. Operand 5252 states and 8253 transitions. [2018-10-24 21:29:29,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-10-24 21:29:29,875 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:29:29,875 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:29:29,876 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:29:29,876 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:29:29,876 INFO L82 PathProgramCache]: Analyzing trace with hash -303243424, now seen corresponding path program 1 times [2018-10-24 21:29:29,876 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:29:29,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:29:29,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:29:29,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:29:29,878 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:29:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:29:30,138 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:29:30,139 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:29:30,139 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:29:30,139 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:29:30,139 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:29:30,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:29:30,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:29:30,140 INFO L87 Difference]: Start difference. First operand 5252 states and 8253 transitions. Second operand 6 states. [2018-10-24 21:29:43,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:29:43,251 INFO L93 Difference]: Finished difference Result 13914 states and 22498 transitions. [2018-10-24 21:29:43,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:29:43,256 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2018-10-24 21:29:43,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:29:43,301 INFO L225 Difference]: With dead ends: 13914 [2018-10-24 21:29:43,302 INFO L226 Difference]: Without dead ends: 8668 [2018-10-24 21:29:43,324 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 21:29:43,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8668 states. [2018-10-24 21:29:43,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8668 to 8605. [2018-10-24 21:29:43,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8605 states. [2018-10-24 21:29:43,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8605 states to 8605 states and 12803 transitions. [2018-10-24 21:29:43,544 INFO L78 Accepts]: Start accepts. Automaton has 8605 states and 12803 transitions. Word has length 138 [2018-10-24 21:29:43,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:29:43,544 INFO L481 AbstractCegarLoop]: Abstraction has 8605 states and 12803 transitions. [2018-10-24 21:29:43,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:29:43,545 INFO L276 IsEmpty]: Start isEmpty. Operand 8605 states and 12803 transitions. [2018-10-24 21:29:43,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-10-24 21:29:43,548 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:29:43,548 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, 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] [2018-10-24 21:29:43,549 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:29:43,549 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:29:43,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1626850484, now seen corresponding path program 1 times [2018-10-24 21:29:43,549 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:29:43,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:29:43,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:29:43,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:29:43,551 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:29:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:29:43,714 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:29:43,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:29:43,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 21:29:43,715 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:29:43,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 21:29:43,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 21:29:43,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 21:29:43,717 INFO L87 Difference]: Start difference. First operand 8605 states and 12803 transitions. Second operand 5 states. [2018-10-24 21:29:56,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:29:56,510 INFO L93 Difference]: Finished difference Result 25982 states and 40339 transitions. [2018-10-24 21:29:56,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 21:29:56,511 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2018-10-24 21:29:56,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:29:56,778 INFO L225 Difference]: With dead ends: 25982 [2018-10-24 21:29:56,778 INFO L226 Difference]: Without dead ends: 17383 [2018-10-24 21:29:56,803 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:29:56,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17383 states. [2018-10-24 21:29:57,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17383 to 17120. [2018-10-24 21:29:57,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17120 states. [2018-10-24 21:29:57,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17120 states to 17120 states and 24327 transitions. [2018-10-24 21:29:57,268 INFO L78 Accepts]: Start accepts. Automaton has 17120 states and 24327 transitions. Word has length 148 [2018-10-24 21:29:57,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:29:57,271 INFO L481 AbstractCegarLoop]: Abstraction has 17120 states and 24327 transitions. [2018-10-24 21:29:57,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 21:29:57,271 INFO L276 IsEmpty]: Start isEmpty. Operand 17120 states and 24327 transitions. [2018-10-24 21:29:57,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-10-24 21:29:57,276 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:29:57,277 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:29:57,277 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:29:57,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:29:57,281 INFO L82 PathProgramCache]: Analyzing trace with hash -2091389760, now seen corresponding path program 1 times [2018-10-24 21:29:57,282 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:29:57,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:29:57,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:29:57,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:29:57,283 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:29:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:29:57,581 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:29:57,581 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:29:57,581 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:29:57,582 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:29:57,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:29:57,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:29:57,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:29:57,583 INFO L87 Difference]: Start difference. First operand 17120 states and 24327 transitions. Second operand 4 states. [2018-10-24 21:30:12,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:30:12,522 INFO L93 Difference]: Finished difference Result 41873 states and 62405 transitions. [2018-10-24 21:30:12,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:30:12,523 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 165 [2018-10-24 21:30:12,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:30:12,661 INFO L225 Difference]: With dead ends: 41873 [2018-10-24 21:30:12,661 INFO L226 Difference]: Without dead ends: 24759 [2018-10-24 21:30:12,738 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:30:12,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24759 states. [2018-10-24 21:30:13,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24759 to 24713. [2018-10-24 21:30:13,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24713 states. [2018-10-24 21:30:13,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24713 states to 24713 states and 35498 transitions. [2018-10-24 21:30:13,774 INFO L78 Accepts]: Start accepts. Automaton has 24713 states and 35498 transitions. Word has length 165 [2018-10-24 21:30:13,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:30:13,774 INFO L481 AbstractCegarLoop]: Abstraction has 24713 states and 35498 transitions. [2018-10-24 21:30:13,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:30:13,775 INFO L276 IsEmpty]: Start isEmpty. Operand 24713 states and 35498 transitions. [2018-10-24 21:30:13,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-10-24 21:30:13,783 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:30:13,783 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:30:13,784 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:30:13,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:30:13,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1502543096, now seen corresponding path program 1 times [2018-10-24 21:30:13,784 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:30:13,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:30:13,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:30:13,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:30:13,786 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:30:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:30:14,038 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:30:14,405 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:30:14,405 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:30:14,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:30:14,405 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:30:14,406 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:30:14,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:30:14,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:30:14,408 INFO L87 Difference]: Start difference. First operand 24713 states and 35498 transitions. Second operand 6 states. [2018-10-24 21:30:24,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:30:24,395 INFO L93 Difference]: Finished difference Result 66963 states and 107781 transitions. [2018-10-24 21:30:24,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:30:24,399 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2018-10-24 21:30:24,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:30:24,618 INFO L225 Difference]: With dead ends: 66963 [2018-10-24 21:30:24,618 INFO L226 Difference]: Without dead ends: 42256 [2018-10-24 21:30:24,706 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 21:30:24,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42256 states. [2018-10-24 21:30:26,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42256 to 42109. [2018-10-24 21:30:26,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42109 states. [2018-10-24 21:30:26,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42109 states to 42109 states and 62366 transitions. [2018-10-24 21:30:26,230 INFO L78 Accepts]: Start accepts. Automaton has 42109 states and 62366 transitions. Word has length 174 [2018-10-24 21:30:26,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:30:26,231 INFO L481 AbstractCegarLoop]: Abstraction has 42109 states and 62366 transitions. [2018-10-24 21:30:26,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:30:26,231 INFO L276 IsEmpty]: Start isEmpty. Operand 42109 states and 62366 transitions. [2018-10-24 21:30:26,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2018-10-24 21:30:26,251 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:30:26,251 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:30:26,251 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:30:26,252 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:30:26,252 INFO L82 PathProgramCache]: Analyzing trace with hash -621888907, now seen corresponding path program 1 times [2018-10-24 21:30:26,252 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:30:26,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:30:26,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:30:26,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:30:26,253 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:30:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:30:26,613 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:30:26,614 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:30:26,614 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:30:26,614 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:30:26,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:30:26,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:30:26,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:30:26,615 INFO L87 Difference]: Start difference. First operand 42109 states and 62366 transitions. Second operand 6 states. [2018-10-24 21:30:47,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:30:47,816 INFO L93 Difference]: Finished difference Result 140397 states and 243495 transitions. [2018-10-24 21:30:47,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 21:30:47,816 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 222 [2018-10-24 21:30:47,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:30:48,513 INFO L225 Difference]: With dead ends: 140397 [2018-10-24 21:30:48,513 INFO L226 Difference]: Without dead ends: 98294 [2018-10-24 21:30:48,724 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 21:30:48,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98294 states. [2018-10-24 21:30:50,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98294 to 97752. [2018-10-24 21:30:50,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97752 states. [2018-10-24 21:30:52,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97752 states to 97752 states and 144392 transitions. [2018-10-24 21:30:52,351 INFO L78 Accepts]: Start accepts. Automaton has 97752 states and 144392 transitions. Word has length 222 [2018-10-24 21:30:52,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:30:52,352 INFO L481 AbstractCegarLoop]: Abstraction has 97752 states and 144392 transitions. [2018-10-24 21:30:52,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:30:52,352 INFO L276 IsEmpty]: Start isEmpty. Operand 97752 states and 144392 transitions. [2018-10-24 21:30:52,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2018-10-24 21:30:52,382 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:30:52,383 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:30:52,383 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:30:52,384 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:30:52,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1548106794, now seen corresponding path program 1 times [2018-10-24 21:30:52,384 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:30:52,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:30:52,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:30:52,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:30:52,386 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:30:52,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:30:52,699 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:30:52,788 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 222 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:30:52,788 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:30:52,788 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:30:52,789 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 296 with the following transitions: [2018-10-24 21:30:52,791 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3039], [3041], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3308], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3358], [3361], [3365], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-24 21:30:52,881 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:30:52,881 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:30:59,938 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:30:59,939 INFO L272 AbstractInterpreter]: Visited 124 different actions 124 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-24 21:30:59,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:30:59,949 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:31:05,068 INFO L232 lantSequenceWeakener]: Weakened 272 states. On average, predicates are now at 71.72% of their original sizes. [2018-10-24 21:31:05,069 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:31:06,690 INFO L413 sIntCurrentIteration]: We have 294 unified AI predicates [2018-10-24 21:31:06,691 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:31:06,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:31:06,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-10-24 21:31:06,692 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:31:06,692 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-24 21:31:06,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-24 21:31:06,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-10-24 21:31:06,693 INFO L87 Difference]: Start difference. First operand 97752 states and 144392 transitions. Second operand 11 states. [2018-10-24 21:31:49,782 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 21:32:28,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 21:32:28,262 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:32:28,268 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:32:28,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:32:28 BoogieIcfgContainer [2018-10-24 21:32:28,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:32:28,270 INFO L168 Benchmark]: Toolchain (without parser) took 225075.74 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -816.2 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-24 21:32:28,271 INFO L168 Benchmark]: CDTParser took 0.54 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. [2018-10-24 21:32:28,271 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2585.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-24 21:32:28,272 INFO L168 Benchmark]: Boogie Procedure Inliner took 627.26 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 790.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2018-10-24 21:32:28,273 INFO L168 Benchmark]: Boogie Preprocessor took 375.10 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 7.1 GB. [2018-10-24 21:32:28,274 INFO L168 Benchmark]: RCFGBuilder took 10172.71 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 242.7 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -94.1 MB). Peak memory consumption was 696.7 MB. Max. memory is 7.1 GB. [2018-10-24 21:32:28,275 INFO L168 Benchmark]: TraceAbstraction took 211309.55 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 37.0 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-10-24 21:32:28,280 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 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 2585.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 627.26 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 790.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 375.10 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10172.71 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 242.7 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -94.1 MB). Peak memory consumption was 696.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211309.55 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 37.0 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 183]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 183). Cancelled while BasicCegarLoop was constructing difference of abstraction (97752states) and FLOYD_HOARE automaton (currently 10 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (1930 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 211.2s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 186.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3458 SDtfs, 25055 SDslu, 3607 SDs, 0 SdLazy, 41059 SolverSat, 12065 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 141.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 359 GetRequests, 304 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97752occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9968393511250652 AbsIntWeakeningRatio, 0.10204081632653061 AbsIntAvgWeakeningVarsNumRemoved, 22.738095238095237 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 7.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 2065 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1341 NumberOfCodeBlocks, 1341 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1333 ConstructedInterpolants, 0 QuantifiedInterpolants, 937094 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 564/566 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown