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/Problem01_label55_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 01:06:28,464 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 01:06:28,466 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 01:06:28,478 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 01:06:28,479 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 01:06:28,480 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 01:06:28,481 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 01:06:28,483 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 01:06:28,484 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 01:06:28,485 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 01:06:28,486 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 01:06:28,486 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 01:06:28,487 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 01:06:28,488 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 01:06:28,490 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 01:06:28,490 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 01:06:28,491 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 01:06:28,493 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 01:06:28,495 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 01:06:28,497 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 01:06:28,498 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 01:06:28,499 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 01:06:28,502 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 01:06:28,502 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 01:06:28,502 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 01:06:28,503 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 01:06:28,504 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 01:06:28,505 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 01:06:28,506 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 01:06:28,507 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 01:06:28,507 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 01:06:28,508 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 01:06:28,508 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 01:06:28,509 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 01:06:28,510 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 01:06:28,510 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 01:06:28,511 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 01:06:28,535 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 01:06:28,535 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 01:06:28,537 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 01:06:28,537 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 01:06:28,537 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 01:06:28,537 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 01:06:28,538 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 01:06:28,538 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 01:06:28,538 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 01:06:28,538 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 01:06:28,538 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 01:06:28,538 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 01:06:28,540 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 01:06:28,540 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 01:06:28,540 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 01:06:28,540 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 01:06:28,541 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 01:06:28,541 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 01:06:28,541 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 01:06:28,541 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 01:06:28,541 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 01:06:28,543 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 01:06:28,543 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 01:06:28,543 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 01:06:28,544 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 01:06:28,544 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 01:06:28,544 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 01:06:28,544 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 01:06:28,544 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 01:06:28,545 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 01:06:28,545 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 01:06:28,545 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 01:06:28,545 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 01:06:28,545 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 01:06:28,589 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 01:06:28,605 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 01:06:28,608 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 01:06:28,610 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 01:06:28,610 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 01:06:28,611 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label55_true-unreach-call_false-termination.c [2018-11-07 01:06:28,674 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d4cad2a3/a92ba537d3d64caaa4b8dac8186d0fa9/FLAG8987dc3d0 [2018-11-07 01:06:29,213 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 01:06:29,215 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label55_true-unreach-call_false-termination.c [2018-11-07 01:06:29,228 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d4cad2a3/a92ba537d3d64caaa4b8dac8186d0fa9/FLAG8987dc3d0 [2018-11-07 01:06:29,241 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d4cad2a3/a92ba537d3d64caaa4b8dac8186d0fa9 [2018-11-07 01:06:29,252 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 01:06:29,254 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 01:06:29,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 01:06:29,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 01:06:29,259 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 01:06:29,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:06:29" (1/1) ... [2018-11-07 01:06:29,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@121926f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:29, skipping insertion in model container [2018-11-07 01:06:29,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:06:29" (1/1) ... [2018-11-07 01:06:29,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 01:06:29,329 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 01:06:29,788 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 01:06:29,800 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 01:06:29,940 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 01:06:29,959 INFO L193 MainTranslator]: Completed translation [2018-11-07 01:06:29,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:29 WrapperNode [2018-11-07 01:06:29,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 01:06:29,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 01:06:29,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 01:06:29,961 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 01:06:29,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:29" (1/1) ... [2018-11-07 01:06:29,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:29" (1/1) ... [2018-11-07 01:06:30,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 01:06:30,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 01:06:30,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 01:06:30,003 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 01:06:30,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:29" (1/1) ... [2018-11-07 01:06:30,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:29" (1/1) ... [2018-11-07 01:06:30,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:29" (1/1) ... [2018-11-07 01:06:30,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:29" (1/1) ... [2018-11-07 01:06:30,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:29" (1/1) ... [2018-11-07 01:06:30,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:29" (1/1) ... [2018-11-07 01:06:30,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:29" (1/1) ... [2018-11-07 01:06:30,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 01:06:30,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 01:06:30,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 01:06:30,199 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 01:06:30,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:29" (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 01:06:30,263 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 01:06:30,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 01:06:30,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 01:06:30,264 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 01:06:30,264 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 01:06:30,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 01:06:30,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 01:06:30,265 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 01:06:30,265 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 01:06:33,175 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 01:06:33,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:06:33 BoogieIcfgContainer [2018-11-07 01:06:33,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 01:06:33,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 01:06:33,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 01:06:33,183 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 01:06:33,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:06:29" (1/3) ... [2018-11-07 01:06:33,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c0757d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:06:33, skipping insertion in model container [2018-11-07 01:06:33,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:29" (2/3) ... [2018-11-07 01:06:33,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c0757d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:06:33, skipping insertion in model container [2018-11-07 01:06:33,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:06:33" (3/3) ... [2018-11-07 01:06:33,187 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label55_true-unreach-call_false-termination.c [2018-11-07 01:06:33,197 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 01:06:33,207 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 01:06:33,225 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 01:06:33,272 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 01:06:33,272 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 01:06:33,272 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 01:06:33,272 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 01:06:33,272 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 01:06:33,274 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 01:06:33,274 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 01:06:33,274 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 01:06:33,301 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-11-07 01:06:33,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-11-07 01:06:33,316 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:06:33,317 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 01:06:33,319 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:06:33,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:06:33,326 INFO L82 PathProgramCache]: Analyzing trace with hash 240629952, now seen corresponding path program 1 times [2018-11-07 01:06:33,329 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:06:33,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:06:33,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:06:33,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:06:33,380 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:06:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:06:33,962 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 01:06:34,103 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 01:06:34,105 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 01:06:34,106 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 01:06:34,106 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:06:34,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 01:06:34,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 01:06:34,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 01:06:34,132 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-11-07 01:06:35,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 01:06:35,738 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-11-07 01:06:35,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 01:06:35,742 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2018-11-07 01:06:35,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 01:06:35,760 INFO L225 Difference]: With dead ends: 550 [2018-11-07 01:06:35,761 INFO L226 Difference]: Without dead ends: 340 [2018-11-07 01:06:35,767 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 01:06:35,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-11-07 01:06:35,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-11-07 01:06:35,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-11-07 01:06:35,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 569 transitions. [2018-11-07 01:06:35,837 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 569 transitions. Word has length 118 [2018-11-07 01:06:35,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 01:06:35,838 INFO L480 AbstractCegarLoop]: Abstraction has 340 states and 569 transitions. [2018-11-07 01:06:35,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 01:06:35,838 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 569 transitions. [2018-11-07 01:06:35,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-11-07 01:06:35,848 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:06:35,848 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 01:06:35,848 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:06:35,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:06:35,849 INFO L82 PathProgramCache]: Analyzing trace with hash -617422281, now seen corresponding path program 1 times [2018-11-07 01:06:35,849 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:06:35,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:06:35,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:06:35,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:06:35,851 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:06:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:06:36,015 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:06:36,015 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 01:06:36,015 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 01:06:36,016 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:06:36,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 01:06:36,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 01:06:36,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 01:06:36,019 INFO L87 Difference]: Start difference. First operand 340 states and 569 transitions. Second operand 5 states. [2018-11-07 01:06:38,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 01:06:38,207 INFO L93 Difference]: Finished difference Result 1079 states and 1888 transitions. [2018-11-07 01:06:38,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 01:06:38,211 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2018-11-07 01:06:38,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 01:06:38,220 INFO L225 Difference]: With dead ends: 1079 [2018-11-07 01:06:38,221 INFO L226 Difference]: Without dead ends: 745 [2018-11-07 01:06:38,224 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 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 01:06:38,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2018-11-07 01:06:38,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 733. [2018-11-07 01:06:38,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2018-11-07 01:06:38,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1163 transitions. [2018-11-07 01:06:38,285 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1163 transitions. Word has length 128 [2018-11-07 01:06:38,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 01:06:38,285 INFO L480 AbstractCegarLoop]: Abstraction has 733 states and 1163 transitions. [2018-11-07 01:06:38,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 01:06:38,286 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1163 transitions. [2018-11-07 01:06:38,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-07 01:06:38,295 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:06:38,295 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 01:06:38,296 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:06:38,296 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:06:38,296 INFO L82 PathProgramCache]: Analyzing trace with hash 11496099, now seen corresponding path program 1 times [2018-11-07 01:06:38,296 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:06:38,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:06:38,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:06:38,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:06:38,298 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:06:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:06:38,617 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:06:38,618 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 01:06:38,618 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 01:06:38,619 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-11-07 01:06:38,622 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [49], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [581], [583], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-07 01:06:38,694 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 01:06:38,694 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 01:06:47,604 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 01:06:47,605 INFO L272 AbstractInterpreter]: Visited 68 different actions 68 times. Never merged. Never widened. Never found a fixpoint. Largest state had 42 variables. [2018-11-07 01:06:47,619 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:06:47,619 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 01:06:49,993 INFO L227 lantSequenceWeakener]: Weakened 83 states. On average, predicates are now at 79.74% of their original sizes. [2018-11-07 01:06:49,993 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 01:06:50,975 INFO L415 sIntCurrentIteration]: We unified 137 AI predicates to 137 [2018-11-07 01:06:50,975 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 01:06:50,976 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 01:06:50,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [7] total 17 [2018-11-07 01:06:50,977 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:06:50,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-07 01:06:50,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-07 01:06:50,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-11-07 01:06:50,978 INFO L87 Difference]: Start difference. First operand 733 states and 1163 transitions. Second operand 12 states. [2018-11-07 01:07:03,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 01:07:03,876 INFO L93 Difference]: Finished difference Result 1521 states and 2423 transitions. [2018-11-07 01:07:03,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 01:07:03,876 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 138 [2018-11-07 01:07:03,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 01:07:03,881 INFO L225 Difference]: With dead ends: 1521 [2018-11-07 01:07:03,881 INFO L226 Difference]: Without dead ends: 794 [2018-11-07 01:07:03,884 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 143 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2018-11-07 01:07:03,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2018-11-07 01:07:03,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 794. [2018-11-07 01:07:03,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 794 states. [2018-11-07 01:07:03,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1232 transitions. [2018-11-07 01:07:03,918 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1232 transitions. Word has length 138 [2018-11-07 01:07:03,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 01:07:03,918 INFO L480 AbstractCegarLoop]: Abstraction has 794 states and 1232 transitions. [2018-11-07 01:07:03,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-07 01:07:03,918 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1232 transitions. [2018-11-07 01:07:03,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-11-07 01:07:03,922 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:07:03,922 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2018-11-07 01:07:03,923 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:07:03,923 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:07:03,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1720247914, now seen corresponding path program 1 times [2018-11-07 01:07:03,923 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:07:03,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:07:03,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:07:03,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:07:03,925 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:07:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:07:04,096 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:07:04,096 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 01:07:04,097 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 01:07:04,097 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-11-07 01:07:04,097 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [581], [583], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-07 01:07:04,103 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 01:07:04,104 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 01:07:39,586 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 01:07:39,587 INFO L272 AbstractInterpreter]: Visited 122 different actions 187 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-07 01:07:39,596 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:07:39,596 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 01:07:44,897 INFO L227 lantSequenceWeakener]: Weakened 36 states. On average, predicates are now at 82.69% of their original sizes. [2018-11-07 01:07:44,897 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 01:08:58,544 INFO L415 sIntCurrentIteration]: We unified 139 AI predicates to 139 [2018-11-07 01:08:58,544 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 01:08:58,545 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 01:08:58,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 24 [2018-11-07 01:08:58,545 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:08:58,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-07 01:08:58,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-07 01:08:58,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2018-11-07 01:08:58,546 INFO L87 Difference]: Start difference. First operand 794 states and 1232 transitions. Second operand 20 states. Received shutdown request... [2018-11-07 01:10:53,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-07 01:10:53,202 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 01:10:53,209 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 01:10:53,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:10:53 BoogieIcfgContainer [2018-11-07 01:10:53,209 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 01:10:53,210 INFO L168 Benchmark]: Toolchain (without parser) took 263957.12 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.7 GB). Peak memory consumption was 163.1 MB. Max. memory is 7.1 GB. [2018-11-07 01:10:53,211 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 01:10:53,212 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-11-07 01:10:53,212 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 01:10:53,213 INFO L168 Benchmark]: Boogie Preprocessor took 195.08 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 763.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -840.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. [2018-11-07 01:10:53,214 INFO L168 Benchmark]: RCFGBuilder took 2979.79 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 103.1 MB). Peak memory consumption was 103.1 MB. Max. memory is 7.1 GB. [2018-11-07 01:10:53,215 INFO L168 Benchmark]: TraceAbstraction took 260030.47 ms. Allocated memory was 2.3 GB in the beginning and 3.4 GB in the end (delta: 1.1 GB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 104.8 MB. Max. memory is 7.1 GB. [2018-11-07 01:10:53,220 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 704.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 42.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 195.08 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 763.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -840.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2979.79 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 103.1 MB). Peak memory consumption was 103.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 260030.47 ms. Allocated memory was 2.3 GB in the beginning and 3.4 GB in the end (delta: 1.1 GB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 104.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 509]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 509). Cancelled while BasicCegarLoop was constructing difference of abstraction (794states) and FLOYD_HOARE automaton (currently 24 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (285 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 259.9s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 131.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 493 SDtfs, 1735 SDslu, 377 SDs, 0 SdLazy, 2096 SolverSat, 459 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 39.3s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 306 GetRequests, 237 SyntacticMatches, 18 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 91.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=794occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 44.4s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9942853776363854 AbsIntWeakeningRatio, 0.2318840579710145 AbsIntAvgWeakeningVarsNumRemoved, 979.7536231884058 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 524 NumberOfCodeBlocks, 524 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 520 ConstructedInterpolants, 0 QuantifiedInterpolants, 177726 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 31/50 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown