java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label06_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 16:40:57,946 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 16:40:57,948 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 16:40:57,969 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 16:40:57,969 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 16:40:57,970 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 16:40:57,974 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 16:40:57,977 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 16:40:57,987 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 16:40:57,988 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 16:40:57,992 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 16:40:57,993 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 16:40:57,993 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 16:40:57,994 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 16:40:57,995 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 16:40:57,999 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 16:40:58,000 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 16:40:58,003 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 16:40:58,009 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 16:40:58,013 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 16:40:58,014 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 16:40:58,015 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 16:40:58,017 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 16:40:58,019 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 16:40:58,019 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 16:40:58,020 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 16:40:58,021 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 16:40:58,023 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 16:40:58,024 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 16:40:58,025 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 16:40:58,025 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 16:40:58,025 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 16:40:58,027 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 16:40:58,027 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 16:40:58,028 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 16:40:58,028 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 16:40:58,029 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-12 16:40:58,047 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 16:40:58,047 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 16:40:58,051 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 16:40:58,051 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 16:40:58,051 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 16:40:58,051 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 16:40:58,052 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 16:40:58,052 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 16:40:58,052 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 16:40:58,052 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 16:40:58,053 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 16:40:58,053 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 16:40:58,053 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 16:40:58,054 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 16:40:58,054 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 16:40:58,054 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 16:40:58,054 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 16:40:58,055 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 16:40:58,055 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 16:40:58,056 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 16:40:58,056 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 16:40:58,056 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 16:40:58,056 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 16:40:58,056 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 16:40:58,056 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 16:40:58,057 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 16:40:58,057 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 16:40:58,057 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 16:40:58,057 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 16:40:58,057 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 16:40:58,058 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 16:40:58,058 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 16:40:58,058 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 16:40:58,058 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 16:40:58,059 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 16:40:58,114 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 16:40:58,127 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 16:40:58,131 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 16:40:58,133 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 16:40:58,133 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 16:40:58,134 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label06_false-unreach-call.c [2018-11-12 16:40:58,197 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a8b76389/547aa6be889e44bdaaf2a883b90ccfef/FLAG484daa784 [2018-11-12 16:40:58,917 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 16:40:58,918 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label06_false-unreach-call.c [2018-11-12 16:40:58,935 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a8b76389/547aa6be889e44bdaaf2a883b90ccfef/FLAG484daa784 [2018-11-12 16:40:58,951 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a8b76389/547aa6be889e44bdaaf2a883b90ccfef [2018-11-12 16:40:58,962 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 16:40:58,964 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 16:40:58,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 16:40:58,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 16:40:58,972 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 16:40:58,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:40:58" (1/1) ... [2018-11-12 16:40:58,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f24d687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:40:58, skipping insertion in model container [2018-11-12 16:40:58,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:40:58" (1/1) ... [2018-11-12 16:40:58,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 16:40:59,092 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 16:41:00,017 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 16:41:00,022 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 16:41:00,261 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 16:41:00,286 INFO L193 MainTranslator]: Completed translation [2018-11-12 16:41:00,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:00 WrapperNode [2018-11-12 16:41:00,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 16:41:00,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 16:41:00,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 16:41:00,288 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 16:41:00,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:00" (1/1) ... [2018-11-12 16:41:00,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:00" (1/1) ... [2018-11-12 16:41:00,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 16:41:00,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 16:41:00,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 16:41:00,483 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 16:41:00,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:00" (1/1) ... [2018-11-12 16:41:00,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:00" (1/1) ... [2018-11-12 16:41:00,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:00" (1/1) ... [2018-11-12 16:41:00,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:00" (1/1) ... [2018-11-12 16:41:00,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:00" (1/1) ... [2018-11-12 16:41:00,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:00" (1/1) ... [2018-11-12 16:41:00,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:00" (1/1) ... [2018-11-12 16:41:00,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 16:41:00,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 16:41:00,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 16:41:00,641 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 16:41:00,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:00" (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 [2018-11-12 16:41:00,721 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 16:41:00,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 16:41:00,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 16:41:00,722 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 16:41:00,722 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 16:41:00,722 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 16:41:00,723 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 16:41:00,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 16:41:00,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 16:41:00,723 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 16:41:00,723 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 16:41:07,161 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 16:41:07,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:41:07 BoogieIcfgContainer [2018-11-12 16:41:07,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 16:41:07,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 16:41:07,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 16:41:07,167 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 16:41:07,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:40:58" (1/3) ... [2018-11-12 16:41:07,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77029d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:41:07, skipping insertion in model container [2018-11-12 16:41:07,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:41:00" (2/3) ... [2018-11-12 16:41:07,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77029d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:41:07, skipping insertion in model container [2018-11-12 16:41:07,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:41:07" (3/3) ... [2018-11-12 16:41:07,171 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label06_false-unreach-call.c [2018-11-12 16:41:07,180 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 16:41:07,189 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 16:41:07,207 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 16:41:07,250 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 16:41:07,250 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 16:41:07,251 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 16:41:07,251 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 16:41:07,251 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 16:41:07,251 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 16:41:07,251 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 16:41:07,252 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 16:41:07,292 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-12 16:41:07,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-12 16:41:07,299 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:41:07,304 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:41:07,307 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:41:07,316 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:41:07,316 INFO L82 PathProgramCache]: Analyzing trace with hash 973214763, now seen corresponding path program 1 times [2018-11-12 16:41:07,319 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:41:07,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:41:07,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:41:07,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:41:07,369 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:41:07,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:41:07,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:41:07,761 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:41:07,762 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 16:41:07,762 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:41:07,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 16:41:07,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 16:41:07,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 16:41:07,788 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 4 states. [2018-11-12 16:41:13,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:41:13,939 INFO L93 Difference]: Finished difference Result 1513 states and 2838 transitions. [2018-11-12 16:41:13,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 16:41:13,942 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-11-12 16:41:13,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:41:13,968 INFO L225 Difference]: With dead ends: 1513 [2018-11-12 16:41:13,969 INFO L226 Difference]: Without dead ends: 1097 [2018-11-12 16:41:13,981 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 16:41:14,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2018-11-12 16:41:14,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1097. [2018-11-12 16:41:14,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1097 states. [2018-11-12 16:41:14,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1954 transitions. [2018-11-12 16:41:14,147 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1954 transitions. Word has length 17 [2018-11-12 16:41:14,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:41:14,147 INFO L480 AbstractCegarLoop]: Abstraction has 1097 states and 1954 transitions. [2018-11-12 16:41:14,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 16:41:14,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1954 transitions. [2018-11-12 16:41:14,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-12 16:41:14,157 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:41:14,157 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 16:41:14,158 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:41:14,158 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:41:14,158 INFO L82 PathProgramCache]: Analyzing trace with hash -804123419, now seen corresponding path program 1 times [2018-11-12 16:41:14,159 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:41:14,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:41:14,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:41:14,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:41:14,162 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:41:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:41:14,577 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:41:14,577 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:41:14,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 16:41:14,578 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:41:14,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 16:41:14,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 16:41:14,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 16:41:14,580 INFO L87 Difference]: Start difference. First operand 1097 states and 1954 transitions. Second operand 6 states. [2018-11-12 16:41:19,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:41:19,137 INFO L93 Difference]: Finished difference Result 3259 states and 5952 transitions. [2018-11-12 16:41:19,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 16:41:19,147 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2018-11-12 16:41:19,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:41:19,169 INFO L225 Difference]: With dead ends: 3259 [2018-11-12 16:41:19,170 INFO L226 Difference]: Without dead ends: 2168 [2018-11-12 16:41:19,177 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 16:41:19,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2168 states. [2018-11-12 16:41:19,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2168 to 2142. [2018-11-12 16:41:19,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2142 states. [2018-11-12 16:41:19,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2142 states to 2142 states and 3739 transitions. [2018-11-12 16:41:19,281 INFO L78 Accepts]: Start accepts. Automaton has 2142 states and 3739 transitions. Word has length 88 [2018-11-12 16:41:19,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:41:19,281 INFO L480 AbstractCegarLoop]: Abstraction has 2142 states and 3739 transitions. [2018-11-12 16:41:19,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 16:41:19,282 INFO L276 IsEmpty]: Start isEmpty. Operand 2142 states and 3739 transitions. [2018-11-12 16:41:19,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-11-12 16:41:19,290 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:41:19,290 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 16:41:19,291 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:41:19,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:41:19,291 INFO L82 PathProgramCache]: Analyzing trace with hash -778915235, now seen corresponding path program 1 times [2018-11-12 16:41:19,291 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:41:19,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:41:19,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:41:19,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:41:19,293 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:41:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:41:19,628 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:41:19,628 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:41:19,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 16:41:19,628 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:41:19,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 16:41:19,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 16:41:19,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 16:41:19,630 INFO L87 Difference]: Start difference. First operand 2142 states and 3739 transitions. Second operand 6 states. [2018-11-12 16:41:24,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:41:24,326 INFO L93 Difference]: Finished difference Result 7047 states and 12676 transitions. [2018-11-12 16:41:24,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 16:41:24,329 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2018-11-12 16:41:24,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:41:24,366 INFO L225 Difference]: With dead ends: 7047 [2018-11-12 16:41:24,366 INFO L226 Difference]: Without dead ends: 4911 [2018-11-12 16:41:24,389 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 16:41:24,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4911 states. [2018-11-12 16:41:24,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4911 to 4871. [2018-11-12 16:41:24,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4871 states. [2018-11-12 16:41:24,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4871 states to 4871 states and 7884 transitions. [2018-11-12 16:41:24,544 INFO L78 Accepts]: Start accepts. Automaton has 4871 states and 7884 transitions. Word has length 116 [2018-11-12 16:41:24,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:41:24,545 INFO L480 AbstractCegarLoop]: Abstraction has 4871 states and 7884 transitions. [2018-11-12 16:41:24,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 16:41:24,545 INFO L276 IsEmpty]: Start isEmpty. Operand 4871 states and 7884 transitions. [2018-11-12 16:41:24,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-11-12 16:41:24,554 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:41:24,555 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:41:24,555 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:41:24,555 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:41:24,555 INFO L82 PathProgramCache]: Analyzing trace with hash 2071209528, now seen corresponding path program 1 times [2018-11-12 16:41:24,556 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:41:24,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:41:24,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:41:24,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:41:24,557 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:41:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:41:24,868 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:41:24,869 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:41:24,869 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 16:41:24,869 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:41:24,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 16:41:24,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 16:41:24,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 16:41:24,871 INFO L87 Difference]: Start difference. First operand 4871 states and 7884 transitions. Second operand 6 states. [2018-11-12 16:41:28,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:41:28,998 INFO L93 Difference]: Finished difference Result 12812 states and 21358 transitions. [2018-11-12 16:41:28,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 16:41:28,999 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 181 [2018-11-12 16:41:29,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:41:29,050 INFO L225 Difference]: With dead ends: 12812 [2018-11-12 16:41:29,050 INFO L226 Difference]: Without dead ends: 7947 [2018-11-12 16:41:29,087 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 16:41:29,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7947 states. [2018-11-12 16:41:29,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7947 to 7906. [2018-11-12 16:41:29,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7906 states. [2018-11-12 16:41:29,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7906 states to 7906 states and 12226 transitions. [2018-11-12 16:41:29,320 INFO L78 Accepts]: Start accepts. Automaton has 7906 states and 12226 transitions. Word has length 181 [2018-11-12 16:41:29,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:41:29,321 INFO L480 AbstractCegarLoop]: Abstraction has 7906 states and 12226 transitions. [2018-11-12 16:41:29,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 16:41:29,321 INFO L276 IsEmpty]: Start isEmpty. Operand 7906 states and 12226 transitions. [2018-11-12 16:41:29,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-11-12 16:41:29,327 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:41:29,327 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 16:41:29,328 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:41:29,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:41:29,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1111726163, now seen corresponding path program 1 times [2018-11-12 16:41:29,328 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:41:29,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:41:29,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:41:29,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:41:29,334 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:41:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:41:29,602 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 20 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 16:41:29,602 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:41:29,602 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:41:29,603 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 208 with the following transitions: [2018-11-12 16:41:29,605 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [215], [217], [220], [228], [236], [244], [252], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [684], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [860], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:41:29,657 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:41:29,658 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:41:30,493 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:41:30,495 INFO L272 AbstractInterpreter]: Visited 122 different actions 122 times. Never merged. Never widened. Performed 2054 root evaluator evaluations with a maximum evaluation depth of 6. Performed 2054 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 24 variables. [2018-11-12 16:41:30,521 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:41:30,521 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:41:31,209 INFO L227 lantSequenceWeakener]: Weakened 185 states. On average, predicates are now at 77.38% of their original sizes. [2018-11-12 16:41:31,209 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:41:32,107 INFO L415 sIntCurrentIteration]: We unified 206 AI predicates to 206 [2018-11-12 16:41:32,107 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:41:32,108 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:41:32,109 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-12 16:41:32,109 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:41:32,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-12 16:41:32,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-12 16:41:32,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-12 16:41:32,111 INFO L87 Difference]: Start difference. First operand 7906 states and 12226 transitions. Second operand 10 states. [2018-11-12 16:41:37,417 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:41:57,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:41:57,231 INFO L93 Difference]: Finished difference Result 16149 states and 24955 transitions. [2018-11-12 16:41:57,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-12 16:41:57,231 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 207 [2018-11-12 16:41:57,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:41:57,282 INFO L225 Difference]: With dead ends: 16149 [2018-11-12 16:41:57,282 INFO L226 Difference]: Without dead ends: 8249 [2018-11-12 16:41:57,320 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 210 GetRequests, 173 SyntacticMatches, 25 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-11-12 16:41:57,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8249 states. [2018-11-12 16:41:57,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8249 to 8244. [2018-11-12 16:41:57,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8244 states. [2018-11-12 16:41:57,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8244 states to 8244 states and 12573 transitions. [2018-11-12 16:41:57,564 INFO L78 Accepts]: Start accepts. Automaton has 8244 states and 12573 transitions. Word has length 207 [2018-11-12 16:41:57,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:41:57,564 INFO L480 AbstractCegarLoop]: Abstraction has 8244 states and 12573 transitions. [2018-11-12 16:41:57,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-12 16:41:57,565 INFO L276 IsEmpty]: Start isEmpty. Operand 8244 states and 12573 transitions. [2018-11-12 16:41:57,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2018-11-12 16:41:57,575 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:41:57,575 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:41:57,576 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:41:57,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:41:57,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1111781520, now seen corresponding path program 1 times [2018-11-12 16:41:57,576 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:41:57,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:41:57,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:41:57,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:41:57,578 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:41:57,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:41:57,910 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:41:58,757 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 36 proven. 158 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-12 16:41:58,757 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:41:58,757 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:41:58,758 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 300 with the following transitions: [2018-11-12 16:41:58,758 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [215], [217], [220], [228], [236], [244], [252], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [684], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [860], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:41:58,766 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:41:58,766 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:41:58,836 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:41:59,454 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:41:59,454 INFO L272 AbstractInterpreter]: Visited 126 different actions 365 times. Merged at 5 different actions 9 times. Never widened. Performed 5109 root evaluator evaluations with a maximum evaluation depth of 6. Performed 5109 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 16:41:59,493 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:41:59,493 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:42:00,294 INFO L227 lantSequenceWeakener]: Weakened 79 states. On average, predicates are now at 77.7% of their original sizes. [2018-11-12 16:42:00,297 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:42:02,773 INFO L415 sIntCurrentIteration]: We unified 298 AI predicates to 298 [2018-11-12 16:42:02,773 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:42:02,774 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:42:02,774 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [6] total 27 [2018-11-12 16:42:02,775 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:42:02,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-12 16:42:02,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-12 16:42:02,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=399, Unknown=0, NotChecked=0, Total=506 [2018-11-12 16:42:02,782 INFO L87 Difference]: Start difference. First operand 8244 states and 12573 transitions. Second operand 23 states. [2018-11-12 16:43:02,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:43:02,366 INFO L93 Difference]: Finished difference Result 18216 states and 27825 transitions. [2018-11-12 16:43:02,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-12 16:43:02,366 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 299 [2018-11-12 16:43:02,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:43:02,413 INFO L225 Difference]: With dead ends: 18216 [2018-11-12 16:43:02,413 INFO L226 Difference]: Without dead ends: 10316 [2018-11-12 16:43:02,445 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 318 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=325, Invalid=1481, Unknown=0, NotChecked=0, Total=1806 [2018-11-12 16:43:02,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10316 states. [2018-11-12 16:43:02,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10316 to 9850. [2018-11-12 16:43:02,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9850 states. [2018-11-12 16:43:02,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9850 states to 9850 states and 14300 transitions. [2018-11-12 16:43:02,695 INFO L78 Accepts]: Start accepts. Automaton has 9850 states and 14300 transitions. Word has length 299 [2018-11-12 16:43:02,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:43:02,695 INFO L480 AbstractCegarLoop]: Abstraction has 9850 states and 14300 transitions. [2018-11-12 16:43:02,695 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-12 16:43:02,695 INFO L276 IsEmpty]: Start isEmpty. Operand 9850 states and 14300 transitions. [2018-11-12 16:43:02,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2018-11-12 16:43:02,709 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:43:02,709 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 16:43:02,710 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:43:02,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:43:02,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1077522712, now seen corresponding path program 1 times [2018-11-12 16:43:02,710 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:43:02,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:43:02,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:43:02,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:43:02,711 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:43:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:43:03,441 WARN L179 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-11-12 16:43:03,639 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-11-12 16:43:04,242 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 150 proven. 72 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-11-12 16:43:04,242 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:43:04,242 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:43:04,242 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 336 with the following transitions: [2018-11-12 16:43:04,243 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [215], [217], [220], [228], [236], [244], [252], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [684], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [860], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:43:04,248 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:43:04,248 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:43:04,385 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:43:04,778 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:43:04,779 INFO L272 AbstractInterpreter]: Visited 137 different actions 398 times. Merged at 5 different actions 9 times. Never widened. Performed 7073 root evaluator evaluations with a maximum evaluation depth of 6. Performed 7073 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 16:43:04,819 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:43:04,819 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:43:05,345 INFO L227 lantSequenceWeakener]: Weakened 79 states. On average, predicates are now at 77.7% of their original sizes. [2018-11-12 16:43:05,345 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:43:05,878 INFO L415 sIntCurrentIteration]: We unified 334 AI predicates to 334 [2018-11-12 16:43:05,878 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:43:05,878 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:43:05,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [13] total 34 [2018-11-12 16:43:05,878 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:43:05,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-12 16:43:05,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-12 16:43:05,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2018-11-12 16:43:05,880 INFO L87 Difference]: Start difference. First operand 9850 states and 14300 transitions. Second operand 23 states. [2018-11-12 16:43:45,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:43:45,319 INFO L93 Difference]: Finished difference Result 20079 states and 29692 transitions. [2018-11-12 16:43:45,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-12 16:43:45,319 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 335 [2018-11-12 16:43:45,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:43:45,357 INFO L225 Difference]: With dead ends: 20079 [2018-11-12 16:43:45,357 INFO L226 Difference]: Without dead ends: 11440 [2018-11-12 16:43:45,392 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 350 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=277, Invalid=1205, Unknown=0, NotChecked=0, Total=1482 [2018-11-12 16:43:45,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11440 states. [2018-11-12 16:43:45,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11440 to 11424. [2018-11-12 16:43:45,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11424 states. [2018-11-12 16:43:45,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11424 states to 11424 states and 15993 transitions. [2018-11-12 16:43:45,627 INFO L78 Accepts]: Start accepts. Automaton has 11424 states and 15993 transitions. Word has length 335 [2018-11-12 16:43:45,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:43:45,628 INFO L480 AbstractCegarLoop]: Abstraction has 11424 states and 15993 transitions. [2018-11-12 16:43:45,628 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-12 16:43:45,628 INFO L276 IsEmpty]: Start isEmpty. Operand 11424 states and 15993 transitions. [2018-11-12 16:43:45,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2018-11-12 16:43:45,648 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:43:45,648 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:43:45,648 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:43:45,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:43:45,649 INFO L82 PathProgramCache]: Analyzing trace with hash -275967172, now seen corresponding path program 1 times [2018-11-12 16:43:45,649 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:43:45,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:43:45,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:43:45,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:43:45,650 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:43:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:43:46,052 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-11-12 16:43:47,066 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 57 proven. 196 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-11-12 16:43:47,066 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:43:47,066 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:43:47,067 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 430 with the following transitions: [2018-11-12 16:43:47,067 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [215], [217], [220], [228], [236], [244], [252], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [684], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [788], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:43:47,072 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:43:47,073 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:43:48,133 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:43:48,133 INFO L272 AbstractInterpreter]: Visited 249 different actions 492 times. Merged at 5 different actions 5 times. Never widened. Performed 6288 root evaluator evaluations with a maximum evaluation depth of 6. Performed 6288 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 16:43:48,139 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:43:48,139 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:43:48,602 INFO L227 lantSequenceWeakener]: Weakened 199 states. On average, predicates are now at 77.55% of their original sizes. [2018-11-12 16:43:48,602 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:43:49,976 INFO L415 sIntCurrentIteration]: We unified 428 AI predicates to 428 [2018-11-12 16:43:49,976 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:43:49,976 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:43:49,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [7] total 23 [2018-11-12 16:43:49,977 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:43:49,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-12 16:43:49,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-12 16:43:49,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2018-11-12 16:43:49,978 INFO L87 Difference]: Start difference. First operand 11424 states and 15993 transitions. Second operand 18 states. [2018-11-12 16:43:52,070 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:44:19,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:44:19,721 INFO L93 Difference]: Finished difference Result 21404 states and 30868 transitions. [2018-11-12 16:44:19,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-12 16:44:19,722 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 429 [2018-11-12 16:44:19,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:44:19,767 INFO L225 Difference]: With dead ends: 21404 [2018-11-12 16:44:19,767 INFO L226 Difference]: Without dead ends: 12060 [2018-11-12 16:44:19,787 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 444 GetRequests, 367 SyntacticMatches, 45 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=213, Invalid=909, Unknown=0, NotChecked=0, Total=1122 [2018-11-12 16:44:19,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12060 states. [2018-11-12 16:44:19,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12060 to 12055. [2018-11-12 16:44:19,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12055 states. [2018-11-12 16:44:20,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12055 states to 12055 states and 16666 transitions. [2018-11-12 16:44:20,024 INFO L78 Accepts]: Start accepts. Automaton has 12055 states and 16666 transitions. Word has length 429 [2018-11-12 16:44:20,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:44:20,025 INFO L480 AbstractCegarLoop]: Abstraction has 12055 states and 16666 transitions. [2018-11-12 16:44:20,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-12 16:44:20,026 INFO L276 IsEmpty]: Start isEmpty. Operand 12055 states and 16666 transitions. [2018-11-12 16:44:20,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2018-11-12 16:44:20,045 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:44:20,045 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:44:20,046 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:44:20,046 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:44:20,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1968700808, now seen corresponding path program 1 times [2018-11-12 16:44:20,047 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:44:20,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:44:20,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:44:20,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:44:20,048 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:44:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:44:20,480 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:44:20,690 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 36 proven. 183 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-12 16:44:20,691 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:44:20,691 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:44:20,691 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 456 with the following transitions: [2018-11-12 16:44:20,691 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [215], [217], [220], [228], [236], [244], [252], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [684], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [860], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:44:20,696 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:44:20,696 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:44:23,720 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:44:23,721 INFO L272 AbstractInterpreter]: Visited 257 different actions 2516 times. Merged at 5 different actions 45 times. Widened at 1 different actions 5 times. Performed 43090 root evaluator evaluations with a maximum evaluation depth of 6. Performed 43090 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 16:44:23,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:44:23,729 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:44:24,443 INFO L227 lantSequenceWeakener]: Weakened 102 states. On average, predicates are now at 77.68% of their original sizes. [2018-11-12 16:44:24,444 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:44:24,815 INFO L415 sIntCurrentIteration]: We unified 454 AI predicates to 454 [2018-11-12 16:44:24,815 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:44:24,815 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:44:24,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [6] total 27 [2018-11-12 16:44:24,816 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:44:24,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-12 16:44:24,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-12 16:44:24,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2018-11-12 16:44:24,817 INFO L87 Difference]: Start difference. First operand 12055 states and 16666 transitions. Second operand 23 states. [2018-11-12 16:44:27,427 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-12 16:44:36,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-11-12 16:44:36,857 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 16:44:36,863 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 16:44:36,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 04:44:36 BoogieIcfgContainer [2018-11-12 16:44:36,864 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 16:44:36,865 INFO L168 Benchmark]: Toolchain (without parser) took 217901.80 ms. Allocated memory was 1.5 GB in the beginning and 4.7 GB in the end (delta: 3.1 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -541.3 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-11-12 16:44:36,866 INFO L168 Benchmark]: CDTParser took 0.27 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. [2018-11-12 16:44:36,866 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1321.83 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-11-12 16:44:36,867 INFO L168 Benchmark]: Boogie Procedure Inliner took 194.75 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 765.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -883.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-11-12 16:44:36,868 INFO L168 Benchmark]: Boogie Preprocessor took 157.43 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 16:44:36,868 INFO L168 Benchmark]: RCFGBuilder took 6522.13 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 249.8 MB). Peak memory consumption was 249.8 MB. Max. memory is 7.1 GB. [2018-11-12 16:44:36,869 INFO L168 Benchmark]: TraceAbstraction took 209700.64 ms. Allocated memory was 2.3 GB in the beginning and 4.7 GB in the end (delta: 2.4 GB). Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: 18.2 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-11-12 16:44:36,874 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 1321.83 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 194.75 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 765.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -883.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 157.43 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 6522.13 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 249.8 MB). Peak memory consumption was 249.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209700.64 ms. Allocated memory was 2.3 GB in the beginning and 4.7 GB in the end (delta: 2.4 GB). Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: 18.2 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 37]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 37). Cancelled while BasicCegarLoop was constructing difference of abstraction (12055states) and FLOYD_HOARE automaton (currently 28 states, 23 states before enhancement),while ReachableStatesComputation was computing reachable states (4250 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 209.6s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 186.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2197 SDtfs, 26160 SDslu, 2107 SDs, 0 SdLazy, 31066 SolverSat, 5196 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 71.1s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 1822 GetRequests, 1573 SyntacticMatches, 73 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1444 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12055occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 6.3s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9973389371834778 AbsIntWeakeningRatio, 0.08953488372093023 AbsIntAvgWeakeningVarsNumRemoved, 10.411627906976744 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 599 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 2127 NumberOfCodeBlocks, 2127 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2118 ConstructedInterpolants, 0 QuantifiedInterpolants, 5365229 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 575/1252 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown