java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label01_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 04:11:33,140 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 04:11:33,142 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 04:11:33,154 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 04:11:33,155 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 04:11:33,156 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 04:11:33,157 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 04:11:33,159 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 04:11:33,161 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 04:11:33,161 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 04:11:33,162 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 04:11:33,163 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 04:11:33,164 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 04:11:33,165 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 04:11:33,166 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 04:11:33,167 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 04:11:33,168 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 04:11:33,170 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 04:11:33,172 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 04:11:33,173 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 04:11:33,175 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 04:11:33,176 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 04:11:33,179 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 04:11:33,179 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 04:11:33,179 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 04:11:33,180 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 04:11:33,181 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 04:11:33,182 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 04:11:33,183 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 04:11:33,185 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 04:11:33,185 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 04:11:33,186 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 04:11:33,186 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 04:11:33,186 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 04:11:33,187 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 04:11:33,188 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 04:11:33,188 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 04:11:33,204 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 04:11:33,205 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 04:11:33,206 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 04:11:33,206 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 04:11:33,206 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 04:11:33,206 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 04:11:33,206 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 04:11:33,207 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 04:11:33,207 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 04:11:33,207 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 04:11:33,207 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 04:11:33,207 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 04:11:33,208 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 04:11:33,208 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 04:11:33,208 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 04:11:33,209 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 04:11:33,209 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 04:11:33,209 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 04:11:33,209 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 04:11:33,209 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 04:11:33,210 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 04:11:33,210 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 04:11:33,210 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 04:11:33,210 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 04:11:33,210 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 04:11:33,211 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 04:11:33,211 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 04:11:33,211 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 04:11:33,211 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 04:11:33,211 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 04:11:33,212 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 04:11:33,212 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 04:11:33,212 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 04:11:33,212 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 04:11:33,257 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 04:11:33,271 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 04:11:33,275 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 04:11:33,277 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 04:11:33,277 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 04:11:33,278 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label01_true-unreach-call.c [2018-11-07 04:11:33,351 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ff62cb0a/e18f64fc7aac464dafc243c1cdfaa571/FLAG619966469 [2018-11-07 04:11:34,361 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 04:11:34,362 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label01_true-unreach-call.c [2018-11-07 04:11:34,416 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ff62cb0a/e18f64fc7aac464dafc243c1cdfaa571/FLAG619966469 [2018-11-07 04:11:34,435 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ff62cb0a/e18f64fc7aac464dafc243c1cdfaa571 [2018-11-07 04:11:34,451 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 04:11:34,454 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 04:11:34,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 04:11:34,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 04:11:34,462 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 04:11:34,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:11:34" (1/1) ... [2018-11-07 04:11:34,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@567b4d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:34, skipping insertion in model container [2018-11-07 04:11:34,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:11:34" (1/1) ... [2018-11-07 04:11:34,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 04:11:34,759 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 04:11:36,805 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 04:11:36,811 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 04:11:37,887 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 04:11:37,943 INFO L193 MainTranslator]: Completed translation [2018-11-07 04:11:37,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:37 WrapperNode [2018-11-07 04:11:37,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 04:11:37,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 04:11:37,946 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 04:11:37,946 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 04:11:37,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:37" (1/1) ... [2018-11-07 04:11:38,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:37" (1/1) ... [2018-11-07 04:11:38,492 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 04:11:38,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 04:11:38,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 04:11:38,492 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 04:11:38,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:37" (1/1) ... [2018-11-07 04:11:38,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:37" (1/1) ... [2018-11-07 04:11:38,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:37" (1/1) ... [2018-11-07 04:11:38,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:37" (1/1) ... [2018-11-07 04:11:38,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:37" (1/1) ... [2018-11-07 04:11:38,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:37" (1/1) ... [2018-11-07 04:11:38,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:37" (1/1) ... [2018-11-07 04:11:38,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 04:11:38,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 04:11:38,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 04:11:38,926 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 04:11:38,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:37" (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 04:11:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 04:11:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 04:11:38,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 04:11:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-11-07 04:11:38,998 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-11-07 04:11:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-11-07 04:11:38,998 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-11-07 04:11:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 04:11:38,999 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 04:11:38,999 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 04:11:38,999 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 04:11:38,999 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 04:11:38,999 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 04:11:39,000 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 04:11:39,001 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 04:11:39,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 04:11:39,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 04:11:39,001 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 04:11:39,001 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 04:11:54,656 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 04:11:54,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:11:54 BoogieIcfgContainer [2018-11-07 04:11:54,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 04:11:54,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 04:11:54,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 04:11:54,662 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 04:11:54,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:11:34" (1/3) ... [2018-11-07 04:11:54,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f1d34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:11:54, skipping insertion in model container [2018-11-07 04:11:54,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:37" (2/3) ... [2018-11-07 04:11:54,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f1d34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:11:54, skipping insertion in model container [2018-11-07 04:11:54,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:11:54" (3/3) ... [2018-11-07 04:11:54,666 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label01_true-unreach-call.c [2018-11-07 04:11:54,676 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 04:11:54,688 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 04:11:54,706 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 04:11:54,759 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 04:11:54,760 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 04:11:54,760 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 04:11:54,760 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 04:11:54,760 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 04:11:54,760 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 04:11:54,760 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 04:11:54,760 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 04:11:54,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-11-07 04:11:54,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-07 04:11:54,828 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:11:54,829 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] [2018-11-07 04:11:54,832 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:11:54,837 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:11:54,838 INFO L82 PathProgramCache]: Analyzing trace with hash -901357788, now seen corresponding path program 1 times [2018-11-07 04:11:54,840 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:11:54,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:11:54,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:11:54,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:11:54,896 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:11:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:11:55,407 WARN L179 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 04:11:55,548 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 04:11:55,550 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:11:55,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 04:11:55,551 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:11:55,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 04:11:55,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 04:11:55,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 04:11:55,577 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-11-07 04:12:09,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:12:09,145 INFO L93 Difference]: Finished difference Result 4995 states and 9413 transitions. [2018-11-07 04:12:09,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 04:12:09,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2018-11-07 04:12:09,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:12:09,206 INFO L225 Difference]: With dead ends: 4995 [2018-11-07 04:12:09,206 INFO L226 Difference]: Without dead ends: 3215 [2018-11-07 04:12:09,228 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 04:12:09,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3215 states. [2018-11-07 04:12:09,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3215 to 3213. [2018-11-07 04:12:09,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3213 states. [2018-11-07 04:12:09,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3213 states to 3213 states and 5833 transitions. [2018-11-07 04:12:09,415 INFO L78 Accepts]: Start accepts. Automaton has 3213 states and 5833 transitions. Word has length 70 [2018-11-07 04:12:09,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:12:09,416 INFO L480 AbstractCegarLoop]: Abstraction has 3213 states and 5833 transitions. [2018-11-07 04:12:09,417 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 04:12:09,417 INFO L276 IsEmpty]: Start isEmpty. Operand 3213 states and 5833 transitions. [2018-11-07 04:12:09,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-11-07 04:12:09,425 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:12:09,426 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, 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] [2018-11-07 04:12:09,426 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:12:09,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:12:09,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1756808487, now seen corresponding path program 1 times [2018-11-07 04:12:09,427 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:12:09,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:12:09,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:12:09,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:12:09,429 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:12:09,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:12:09,701 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:12:09,701 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:12:09,701 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 04:12:09,701 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:12:09,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 04:12:09,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 04:12:09,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 04:12:09,705 INFO L87 Difference]: Start difference. First operand 3213 states and 5833 transitions. Second operand 5 states. [2018-11-07 04:12:36,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:12:36,217 INFO L93 Difference]: Finished difference Result 12251 states and 22705 transitions. [2018-11-07 04:12:36,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 04:12:36,218 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 144 [2018-11-07 04:12:36,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:12:36,268 INFO L225 Difference]: With dead ends: 12251 [2018-11-07 04:12:36,268 INFO L226 Difference]: Without dead ends: 9044 [2018-11-07 04:12:36,283 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 04:12:36,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9044 states. [2018-11-07 04:12:36,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9044 to 8961. [2018-11-07 04:12:36,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8961 states. [2018-11-07 04:12:36,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8961 states to 8961 states and 13238 transitions. [2018-11-07 04:12:36,521 INFO L78 Accepts]: Start accepts. Automaton has 8961 states and 13238 transitions. Word has length 144 [2018-11-07 04:12:36,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:12:36,521 INFO L480 AbstractCegarLoop]: Abstraction has 8961 states and 13238 transitions. [2018-11-07 04:12:36,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 04:12:36,522 INFO L276 IsEmpty]: Start isEmpty. Operand 8961 states and 13238 transitions. [2018-11-07 04:12:36,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-11-07 04:12:36,526 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:12:36,526 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, 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] [2018-11-07 04:12:36,526 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:12:36,527 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:12:36,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1510620445, now seen corresponding path program 1 times [2018-11-07 04:12:36,527 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:12:36,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:12:36,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:12:36,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:12:36,529 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:12:36,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:12:36,792 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:12:36,792 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:12:36,793 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 04:12:36,793 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:12:36,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 04:12:36,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 04:12:36,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 04:12:36,794 INFO L87 Difference]: Start difference. First operand 8961 states and 13238 transitions. Second operand 6 states. [2018-11-07 04:12:51,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:12:51,190 INFO L93 Difference]: Finished difference Result 21233 states and 31871 transitions. [2018-11-07 04:12:51,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 04:12:51,200 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-11-07 04:12:51,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:12:51,277 INFO L225 Difference]: With dead ends: 21233 [2018-11-07 04:12:51,278 INFO L226 Difference]: Without dead ends: 12278 [2018-11-07 04:12:51,305 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 04:12:51,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12278 states. [2018-11-07 04:12:51,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12278 to 12111. [2018-11-07 04:12:51,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12111 states. [2018-11-07 04:12:51,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12111 states to 12111 states and 17269 transitions. [2018-11-07 04:12:51,657 INFO L78 Accepts]: Start accepts. Automaton has 12111 states and 17269 transitions. Word has length 149 [2018-11-07 04:12:51,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:12:51,658 INFO L480 AbstractCegarLoop]: Abstraction has 12111 states and 17269 transitions. [2018-11-07 04:12:51,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 04:12:51,658 INFO L276 IsEmpty]: Start isEmpty. Operand 12111 states and 17269 transitions. [2018-11-07 04:12:51,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-11-07 04:12:51,662 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:12:51,666 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, 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] [2018-11-07 04:12:51,667 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:12:51,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:12:51,667 INFO L82 PathProgramCache]: Analyzing trace with hash -981513705, now seen corresponding path program 1 times [2018-11-07 04:12:51,668 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:12:51,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:12:51,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:12:51,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:12:51,670 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:12:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:12:52,107 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:12:52,108 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:12:52,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 04:12:52,108 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:12:52,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 04:12:52,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 04:12:52,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 04:12:52,109 INFO L87 Difference]: Start difference. First operand 12111 states and 17269 transitions. Second operand 6 states. [2018-11-07 04:13:06,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:13:06,451 INFO L93 Difference]: Finished difference Result 36915 states and 53756 transitions. [2018-11-07 04:13:06,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 04:13:06,452 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 152 [2018-11-07 04:13:06,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:13:06,541 INFO L225 Difference]: With dead ends: 36915 [2018-11-07 04:13:06,541 INFO L226 Difference]: Without dead ends: 24810 [2018-11-07 04:13:06,578 INFO L604 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 [2018-11-07 04:13:06,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24810 states. [2018-11-07 04:13:07,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24810 to 24400. [2018-11-07 04:13:07,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24400 states. [2018-11-07 04:13:07,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24400 states to 24400 states and 34098 transitions. [2018-11-07 04:13:07,302 INFO L78 Accepts]: Start accepts. Automaton has 24400 states and 34098 transitions. Word has length 152 [2018-11-07 04:13:07,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:13:07,303 INFO L480 AbstractCegarLoop]: Abstraction has 24400 states and 34098 transitions. [2018-11-07 04:13:07,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 04:13:07,303 INFO L276 IsEmpty]: Start isEmpty. Operand 24400 states and 34098 transitions. [2018-11-07 04:13:07,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-11-07 04:13:07,307 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:13:07,307 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, 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] [2018-11-07 04:13:07,307 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:13:07,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:13:07,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1158818945, now seen corresponding path program 1 times [2018-11-07 04:13:07,308 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:13:07,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:13:07,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:13:07,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:13:07,309 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:13:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:13:07,666 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:13:07,667 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:13:07,668 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 04:13:07,668 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:13:07,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 04:13:07,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 04:13:07,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 04:13:07,670 INFO L87 Difference]: Start difference. First operand 24400 states and 34098 transitions. Second operand 5 states. [2018-11-07 04:13:25,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:13:25,714 INFO L93 Difference]: Finished difference Result 75641 states and 108695 transitions. [2018-11-07 04:13:25,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 04:13:25,719 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 172 [2018-11-07 04:13:25,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:13:25,879 INFO L225 Difference]: With dead ends: 75641 [2018-11-07 04:13:25,879 INFO L226 Difference]: Without dead ends: 51247 [2018-11-07 04:13:25,929 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 04:13:25,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51247 states. [2018-11-07 04:13:26,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51247 to 49410. [2018-11-07 04:13:26,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49410 states. [2018-11-07 04:13:26,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49410 states to 49410 states and 63889 transitions. [2018-11-07 04:13:26,961 INFO L78 Accepts]: Start accepts. Automaton has 49410 states and 63889 transitions. Word has length 172 [2018-11-07 04:13:26,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:13:26,961 INFO L480 AbstractCegarLoop]: Abstraction has 49410 states and 63889 transitions. [2018-11-07 04:13:26,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 04:13:26,962 INFO L276 IsEmpty]: Start isEmpty. Operand 49410 states and 63889 transitions. [2018-11-07 04:13:26,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2018-11-07 04:13:26,968 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:13:26,968 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, 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] [2018-11-07 04:13:26,969 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:13:26,969 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:13:26,969 INFO L82 PathProgramCache]: Analyzing trace with hash -594046821, now seen corresponding path program 1 times [2018-11-07 04:13:26,969 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:13:26,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:13:26,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:13:26,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:13:26,972 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:13:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:13:27,289 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:13:27,289 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:13:27,290 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 04:13:27,290 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:13:27,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 04:13:27,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 04:13:27,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 04:13:27,291 INFO L87 Difference]: Start difference. First operand 49410 states and 63889 transitions. Second operand 4 states. [2018-11-07 04:13:44,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:13:44,966 INFO L93 Difference]: Finished difference Result 181381 states and 252674 transitions. [2018-11-07 04:13:44,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 04:13:44,971 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 282 [2018-11-07 04:13:44,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:13:46,145 INFO L225 Difference]: With dead ends: 181381 [2018-11-07 04:13:46,145 INFO L226 Difference]: Without dead ends: 131977 [2018-11-07 04:13:46,259 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 04:13:46,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131977 states. [2018-11-07 04:13:48,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131977 to 131608. [2018-11-07 04:13:48,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131608 states. [2018-11-07 04:13:48,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131608 states to 131608 states and 174651 transitions. [2018-11-07 04:13:48,670 INFO L78 Accepts]: Start accepts. Automaton has 131608 states and 174651 transitions. Word has length 282 [2018-11-07 04:13:48,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:13:48,671 INFO L480 AbstractCegarLoop]: Abstraction has 131608 states and 174651 transitions. [2018-11-07 04:13:48,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 04:13:48,672 INFO L276 IsEmpty]: Start isEmpty. Operand 131608 states and 174651 transitions. [2018-11-07 04:13:48,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2018-11-07 04:13:48,707 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:13:48,708 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 04:13:48,708 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:13:48,709 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:13:48,709 INFO L82 PathProgramCache]: Analyzing trace with hash -244829827, now seen corresponding path program 1 times [2018-11-07 04:13:48,709 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:13:48,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:13:48,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:13:48,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:13:48,710 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:13:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:13:50,636 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 404 proven. 164 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2018-11-07 04:13:50,637 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 04:13:50,637 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 04:13:50,638 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 665 with the following transitions: [2018-11-07 04:13:50,643 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5498], [5506], [5514], [5522], [5530], [5538], [5546], [5554], [5562], [5570], [5578], [5586], [5594], [5602], [5610], [5618], [5626], [5634], [5642], [5650], [5658], [5666], [5674], [5682], [5686], [5688], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5782], [5786], [5797], [5808], [5819], [5823], [5827], [5838], [5842], [5846], [5850], [5854], [5858], [5862], [5866], [5870], [5874], [5878], [5882], [5886], [5890], [5894], [5898], [5902], [5906], [5910], [5914], [5918], [5922], [5926], [5930], [5934], [5938], [5942], [5946], [5950], [5954], [5958], [5962], [5966], [5977], [5981], [5985], [5996], [6000], [6004], [6008], [6012], [6016], [6020], [6024], [6028], [6032], [6036], [6040], [6051], [6055], [6059], [6063], [6067], [6071], [6075], [6079], [6083], [6087], [6091], [6102], [6106], [6110], [6121], [6125], [6129], [6140], [6144], [6148], [6152], [6156], [6160], [6164], [6168], [6172], [6176], [6180], [6183], [6184], [6188], [6192], [6196], [6200], [6204], [6208], [6212], [6216], [6220], [6224], [6228], [6232], [6236], [6240], [6251], [6255], [6259], [6263], [6267], [6278], [6282], [6286], [6290], [6294], [6298], [6302], [6306], [6310], [6314], [6325], [6329], [6333], [6344], [6348], [6352], [6356], [6360], [6371], [6375], [6379], [6383], [6387], [6391], [6402], [6413], [6417], [6420], [6421], [6425], [6429], [6432], [6437], [6439], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-11-07 04:13:50,749 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 04:13:50,750 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 04:13:59,018 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 04:13:59,702 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 04:13:59,704 INFO L272 AbstractInterpreter]: Visited 221 different actions 221 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 04:13:59,738 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:13:59,738 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 04:14:06,545 INFO L227 lantSequenceWeakener]: Weakened 651 states. On average, predicates are now at 75.35% of their original sizes. [2018-11-07 04:14:06,545 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 04:14:07,102 INFO L415 sIntCurrentIteration]: We unified 663 AI predicates to 663 [2018-11-07 04:14:07,103 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 04:14:07,104 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 04:14:07,104 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-07 04:14:07,104 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:14:07,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 04:14:07,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 04:14:07,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 04:14:07,106 INFO L87 Difference]: Start difference. First operand 131608 states and 174651 transitions. Second operand 7 states. Received shutdown request... [2018-11-07 04:14:58,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 04:14:58,149 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 04:14:58,155 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 04:14:58,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:14:58 BoogieIcfgContainer [2018-11-07 04:14:58,156 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 04:14:58,157 INFO L168 Benchmark]: Toolchain (without parser) took 203704.34 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-11-07 04:14:58,158 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 04:14:58,158 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3489.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 999.3 MB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. [2018-11-07 04:14:58,160 INFO L168 Benchmark]: Boogie Procedure Inliner took 546.61 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 836.8 MB). Free memory was 999.3 MB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. [2018-11-07 04:14:58,161 INFO L168 Benchmark]: Boogie Preprocessor took 433.51 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 7.1 GB. [2018-11-07 04:14:58,163 INFO L168 Benchmark]: RCFGBuilder took 15731.05 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 167.2 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 481.1 MB). Peak memory consumption was 672.4 MB. Max. memory is 7.1 GB. [2018-11-07 04:14:58,165 INFO L168 Benchmark]: TraceAbstraction took 183498.05 ms. Allocated memory was 2.5 GB in the beginning and 4.0 GB in the end (delta: 1.5 GB). Free memory was 1.7 GB in the beginning and 2.7 GB in the end (delta: -952.1 MB). Peak memory consumption was 515.9 MB. Max. memory is 7.1 GB. [2018-11-07 04:14:58,172 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 3489.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 999.3 MB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 546.61 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 836.8 MB). Free memory was 999.3 MB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 433.51 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 15731.05 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 167.2 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 481.1 MB). Peak memory consumption was 672.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 183498.05 ms. Allocated memory was 2.5 GB in the beginning and 4.0 GB in the end (delta: 1.5 GB). Free memory was 1.7 GB in the beginning and 2.7 GB in the end (delta: -952.1 MB). Peak memory consumption was 515.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 205]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 205). Cancelled while BasicCegarLoop was constructing difference of abstraction (131608states) and FLOYD_HOARE automaton (currently 7 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (25755 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 183.4s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 157.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3899 SDtfs, 32193 SDslu, 4248 SDs, 0 SdLazy, 54767 SolverSat, 13857 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 106.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 713 GetRequests, 674 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131608occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 9.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9983617589047452 AbsIntWeakeningRatio, 0.05279034690799397 AbsIntAvgWeakeningVarsNumRemoved, 1072.7541478129713 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 4.9s AutomataMinimizationTime, 6 MinimizatonAttempts, 2868 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1633 NumberOfCodeBlocks, 1633 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1626 ConstructedInterpolants, 0 QuantifiedInterpolants, 1779683 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 882/1046 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown