java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label02_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:35:59,020 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:35:59,023 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:35:59,039 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:35:59,039 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:35:59,040 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:35:59,041 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:35:59,043 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:35:59,045 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:35:59,045 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:35:59,046 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:35:59,047 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:35:59,047 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:35:59,048 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:35:59,049 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:35:59,050 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:35:59,051 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:35:59,053 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:35:59,055 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:35:59,056 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:35:59,057 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:35:59,059 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:35:59,061 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 18:35:59,061 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 18:35:59,061 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 18:35:59,062 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 18:35:59,063 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 18:35:59,064 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 18:35:59,067 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 18:35:59,068 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 18:35:59,068 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 18:35:59,069 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 18:35:59,069 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 18:35:59,069 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 18:35:59,070 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 18:35:59,071 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 18:35:59,071 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 18:35:59,101 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:35:59,102 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:35:59,103 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:35:59,103 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:35:59,103 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:35:59,103 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:35:59,103 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:35:59,104 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:35:59,104 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:35:59,104 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:35:59,104 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:35:59,104 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:35:59,105 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:35:59,105 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:35:59,106 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:35:59,106 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:35:59,106 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:35:59,106 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:35:59,106 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:35:59,107 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:35:59,107 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:35:59,107 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:35:59,107 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:35:59,107 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:35:59,108 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:35:59,108 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:35:59,108 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:35:59,108 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:35:59,108 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:35:59,109 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:35:59,109 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:35:59,109 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:35:59,109 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:35:59,109 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:35:59,156 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:35:59,168 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:35:59,172 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:35:59,173 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:35:59,174 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:35:59,175 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label02_false-unreach-call.c [2018-10-24 18:35:59,233 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/64f8eb2d7/7e19bc8607474c9b951d93d0503715be/FLAG5939282e5 [2018-10-24 18:35:59,973 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:35:59,974 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label02_false-unreach-call.c [2018-10-24 18:35:59,999 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/64f8eb2d7/7e19bc8607474c9b951d93d0503715be/FLAG5939282e5 [2018-10-24 18:36:00,016 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/64f8eb2d7/7e19bc8607474c9b951d93d0503715be [2018-10-24 18:36:00,027 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:36:00,029 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:36:00,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:36:00,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:36:00,034 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:36:00,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:36:00" (1/1) ... [2018-10-24 18:36:00,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ccbb6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:00, skipping insertion in model container [2018-10-24 18:36:00,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:36:00" (1/1) ... [2018-10-24 18:36:00,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:36:00,143 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:36:00,962 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:36:00,967 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:36:01,329 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:36:01,353 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:36:01,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:01 WrapperNode [2018-10-24 18:36:01,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:36:01,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:36:01,355 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:36:01,355 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:36:01,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:01" (1/1) ... [2018-10-24 18:36:01,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:01" (1/1) ... [2018-10-24 18:36:01,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:36:01,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:36:01,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:36:01,766 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:36:01,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:01" (1/1) ... [2018-10-24 18:36:01,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:01" (1/1) ... [2018-10-24 18:36:01,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:01" (1/1) ... [2018-10-24 18:36:01,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:01" (1/1) ... [2018-10-24 18:36:01,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:01" (1/1) ... [2018-10-24 18:36:01,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:01" (1/1) ... [2018-10-24 18:36:01,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:01" (1/1) ... [2018-10-24 18:36:01,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:36:01,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:36:01,989 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:36:01,989 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:36:01,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:36:02,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:36:02,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:36:02,051 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:36:02,051 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:36:02,051 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:36:02,051 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:36:02,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:36:02,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:36:02,052 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:36:02,052 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:36:09,478 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:36:09,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:36:09 BoogieIcfgContainer [2018-10-24 18:36:09,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:36:09,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:36:09,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:36:09,484 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:36:09,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:36:00" (1/3) ... [2018-10-24 18:36:09,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e75f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:36:09, skipping insertion in model container [2018-10-24 18:36:09,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:01" (2/3) ... [2018-10-24 18:36:09,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e75f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:36:09, skipping insertion in model container [2018-10-24 18:36:09,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:36:09" (3/3) ... [2018-10-24 18:36:09,491 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label02_false-unreach-call.c [2018-10-24 18:36:09,501 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:36:09,510 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:36:09,529 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:36:09,571 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:36:09,571 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:36:09,572 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:36:09,572 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:36:09,572 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:36:09,572 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:36:09,572 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:36:09,573 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:36:09,604 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-24 18:36:09,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-10-24 18:36:09,613 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:36:09,614 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] [2018-10-24 18:36:09,617 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:36:09,623 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:36:09,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1104690921, now seen corresponding path program 1 times [2018-10-24 18:36:09,626 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:36:09,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:36:09,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:36:09,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:36:09,674 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:36:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:36:10,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:36:10,093 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:36:10,094 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:36:10,094 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:36:10,100 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:36:10,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:36:10,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:36:10,122 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-10-24 18:36:19,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:36:19,602 INFO L93 Difference]: Finished difference Result 1558 states and 2849 transitions. [2018-10-24 18:36:19,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:36:19,604 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2018-10-24 18:36:19,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:36:19,640 INFO L225 Difference]: With dead ends: 1558 [2018-10-24 18:36:19,640 INFO L226 Difference]: Without dead ends: 1114 [2018-10-24 18:36:19,648 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:36:19,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2018-10-24 18:36:19,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1091. [2018-10-24 18:36:19,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1091 states. [2018-10-24 18:36:19,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1853 transitions. [2018-10-24 18:36:19,776 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1853 transitions. Word has length 35 [2018-10-24 18:36:19,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:36:19,776 INFO L481 AbstractCegarLoop]: Abstraction has 1091 states and 1853 transitions. [2018-10-24 18:36:19,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:36:19,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1853 transitions. [2018-10-24 18:36:19,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-10-24 18:36:19,787 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:36:19,787 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:36:19,788 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:36:19,790 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:36:19,790 INFO L82 PathProgramCache]: Analyzing trace with hash 647598068, now seen corresponding path program 1 times [2018-10-24 18:36:19,790 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:36:19,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:36:19,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:36:19,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:36:19,793 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:36:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:36:20,101 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:36:20,101 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:36:20,102 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 18:36:20,102 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:36:20,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 18:36:20,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 18:36:20,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 18:36:20,105 INFO L87 Difference]: Start difference. First operand 1091 states and 1853 transitions. Second operand 5 states. [2018-10-24 18:36:29,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:36:29,313 INFO L93 Difference]: Finished difference Result 3240 states and 5580 transitions. [2018-10-24 18:36:29,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 18:36:29,313 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 108 [2018-10-24 18:36:29,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:36:29,333 INFO L225 Difference]: With dead ends: 3240 [2018-10-24 18:36:29,336 INFO L226 Difference]: Without dead ends: 2155 [2018-10-24 18:36:29,343 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:36:29,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2155 states. [2018-10-24 18:36:29,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2155 to 2114. [2018-10-24 18:36:29,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2114 states. [2018-10-24 18:36:29,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2114 states to 2114 states and 3176 transitions. [2018-10-24 18:36:29,447 INFO L78 Accepts]: Start accepts. Automaton has 2114 states and 3176 transitions. Word has length 108 [2018-10-24 18:36:29,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:36:29,448 INFO L481 AbstractCegarLoop]: Abstraction has 2114 states and 3176 transitions. [2018-10-24 18:36:29,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 18:36:29,448 INFO L276 IsEmpty]: Start isEmpty. Operand 2114 states and 3176 transitions. [2018-10-24 18:36:29,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-10-24 18:36:29,462 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:36:29,462 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:36:29,464 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:36:29,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:36:29,464 INFO L82 PathProgramCache]: Analyzing trace with hash -858002428, now seen corresponding path program 1 times [2018-10-24 18:36:29,464 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:36:29,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:36:29,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:36:29,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:36:29,466 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:36:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:36:29,659 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:36:29,659 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:36:29,659 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:36:29,659 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:36:29,660 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:36:29,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:36:29,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:36:29,661 INFO L87 Difference]: Start difference. First operand 2114 states and 3176 transitions. Second operand 4 states. [2018-10-24 18:36:34,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:36:34,997 INFO L93 Difference]: Finished difference Result 7944 states and 12443 transitions. [2018-10-24 18:36:34,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:36:34,998 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2018-10-24 18:36:34,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:36:35,043 INFO L225 Difference]: With dead ends: 7944 [2018-10-24 18:36:35,044 INFO L226 Difference]: Without dead ends: 5836 [2018-10-24 18:36:35,071 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:36:35,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5836 states. [2018-10-24 18:36:35,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5836 to 5834. [2018-10-24 18:36:35,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5834 states. [2018-10-24 18:36:35,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5834 states to 5834 states and 8173 transitions. [2018-10-24 18:36:35,282 INFO L78 Accepts]: Start accepts. Automaton has 5834 states and 8173 transitions. Word has length 116 [2018-10-24 18:36:35,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:36:35,283 INFO L481 AbstractCegarLoop]: Abstraction has 5834 states and 8173 transitions. [2018-10-24 18:36:35,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:36:35,287 INFO L276 IsEmpty]: Start isEmpty. Operand 5834 states and 8173 transitions. [2018-10-24 18:36:35,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-10-24 18:36:35,295 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:36:35,299 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 18:36:35,300 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:36:35,300 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:36:35,300 INFO L82 PathProgramCache]: Analyzing trace with hash 833656258, now seen corresponding path program 1 times [2018-10-24 18:36:35,300 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:36:35,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:36:35,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:36:35,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:36:35,303 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:36:35,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:36:35,657 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:36:36,058 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 56 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 18:36:36,059 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:36:36,059 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:36:36,060 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 206 with the following transitions: [2018-10-24 18:36:36,062 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [714], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 18:36:36,131 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:36:36,132 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:36:38,112 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:36:38,976 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:36:38,977 INFO L272 AbstractInterpreter]: Visited 105 different actions 105 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 18:36:39,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:36:39,024 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:36:40,991 INFO L232 lantSequenceWeakener]: Weakened 197 states. On average, predicates are now at 77.77% of their original sizes. [2018-10-24 18:36:40,991 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:36:41,490 INFO L413 sIntCurrentIteration]: We have 204 unified AI predicates [2018-10-24 18:36:41,490 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:36:41,491 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:36:41,492 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-10-24 18:36:41,492 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:36:41,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 18:36:41,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 18:36:41,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:36:41,493 INFO L87 Difference]: Start difference. First operand 5834 states and 8173 transitions. Second operand 8 states. [2018-10-24 18:38:05,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:38:05,866 INFO L93 Difference]: Finished difference Result 11972 states and 16730 transitions. [2018-10-24 18:38:05,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 18:38:05,866 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 205 [2018-10-24 18:38:05,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:38:05,900 INFO L225 Difference]: With dead ends: 11972 [2018-10-24 18:38:05,901 INFO L226 Difference]: Without dead ends: 6144 [2018-10-24 18:38:05,934 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 206 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 18:38:05,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6144 states. [2018-10-24 18:38:06,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6144 to 6142. [2018-10-24 18:38:06,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6142 states. [2018-10-24 18:38:06,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6142 states to 6142 states and 8490 transitions. [2018-10-24 18:38:06,118 INFO L78 Accepts]: Start accepts. Automaton has 6142 states and 8490 transitions. Word has length 205 [2018-10-24 18:38:06,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:38:06,119 INFO L481 AbstractCegarLoop]: Abstraction has 6142 states and 8490 transitions. [2018-10-24 18:38:06,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 18:38:06,119 INFO L276 IsEmpty]: Start isEmpty. Operand 6142 states and 8490 transitions. [2018-10-24 18:38:06,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2018-10-24 18:38:06,129 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:38:06,130 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:38:06,130 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:38:06,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:38:06,131 INFO L82 PathProgramCache]: Analyzing trace with hash -187310056, now seen corresponding path program 1 times [2018-10-24 18:38:06,134 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:38:06,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:38:06,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:38:06,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:38:06,136 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:38:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:38:06,477 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:38:06,565 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 90 proven. 212 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-10-24 18:38:06,566 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:38:06,566 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:38:06,566 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 302 with the following transitions: [2018-10-24 18:38:06,567 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [714], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 18:38:06,575 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:38:06,576 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:38:07,892 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:38:14,042 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:38:14,042 INFO L272 AbstractInterpreter]: Visited 109 different actions 314 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 18:38:14,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:38:14,053 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:38:17,591 INFO L232 lantSequenceWeakener]: Weakened 69 states. On average, predicates are now at 77.8% of their original sizes. [2018-10-24 18:38:17,591 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 18:40:00,187 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:40:00,192 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:40:00,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:40:00 BoogieIcfgContainer [2018-10-24 18:40:00,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:40:00,193 INFO L168 Benchmark]: Toolchain (without parser) took 240164.95 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -45.1 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-10-24 18:40:00,194 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 18:40:00,194 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1324.06 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-10-24 18:40:00,195 INFO L168 Benchmark]: Boogie Procedure Inliner took 410.93 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 734.5 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -851.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2018-10-24 18:40:00,196 INFO L168 Benchmark]: Boogie Preprocessor took 223.17 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2018-10-24 18:40:00,197 INFO L168 Benchmark]: RCFGBuilder took 7490.34 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 319.0 MB). Peak memory consumption was 319.0 MB. Max. memory is 7.1 GB. [2018-10-24 18:40:00,198 INFO L168 Benchmark]: TraceAbstraction took 230711.79 ms. Allocated memory was 2.2 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.8 GB in the beginning and 1.4 GB in the end (delta: 377.9 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-24 18:40:00,203 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1324.06 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 410.93 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 734.5 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -851.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 223.17 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7490.34 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 319.0 MB). Peak memory consumption was 319.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 230711.79 ms. Allocated memory was 2.2 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.8 GB in the beginning and 1.4 GB in the end (delta: 377.9 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 91). Cancelled while BasicCegarLoop was analyzing trace of length 302 with TraceHistMax 4,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 16 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 230.6s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 108.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1497 SDtfs, 3632 SDslu, 1036 SDs, 0 SdLazy, 7365 SolverSat, 1732 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 76.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 226 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6142occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 10.4s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9951511099608924 AbsIntWeakeningRatio, 0.11507936507936507 AbsIntAvgWeakeningVarsNumRemoved, 521.827380952381 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 68 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 464 NumberOfCodeBlocks, 464 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 460 ConstructedInterpolants, 0 QuantifiedInterpolants, 227770 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 117/182 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown