java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label43_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 00:36:02,980 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 00:36:02,987 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 00:36:03,006 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 00:36:03,006 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 00:36:03,007 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 00:36:03,009 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 00:36:03,012 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 00:36:03,014 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 00:36:03,015 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 00:36:03,016 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 00:36:03,016 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 00:36:03,017 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 00:36:03,018 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 00:36:03,019 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 00:36:03,020 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 00:36:03,021 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 00:36:03,023 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 00:36:03,025 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 00:36:03,027 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 00:36:03,028 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 00:36:03,029 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 00:36:03,032 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 00:36:03,039 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 00:36:03,039 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 00:36:03,040 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 00:36:03,041 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 00:36:03,041 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 00:36:03,057 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 00:36:03,057 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 00:36:03,058 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 00:36:03,059 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 00:36:03,059 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 00:36:03,059 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 00:36:03,059 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 00:36:03,059 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 00:36:03,059 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 00:36:03,060 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 00:36:03,060 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 00:36:03,060 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 00:36:03,061 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 00:36:03,061 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 00:36:03,061 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 00:36:03,061 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 00:36:03,062 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 00:36:03,062 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 00:36:03,062 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 00:36:03,062 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 00:36:03,062 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 00:36:03,062 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 00:36:03,063 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 00:36:03,063 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 00:36:03,063 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:36:03,063 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 00:36:03,063 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 00:36:03,065 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 00:36:03,065 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 00:36:03,065 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 00:36:03,065 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 00:36:03,066 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 00:36:03,066 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 00:36:03,066 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 00:36:03,113 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 00:36:03,127 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 00:36:03,130 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 00:36:03,132 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 00:36:03,132 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 00:36:03,133 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label43_false-unreach-call.c [2018-11-07 00:36:03,188 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4410c3254/7e507e9231a644f2b79e16ae95511ca6/FLAG04a85bd80 [2018-11-07 00:36:03,840 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 00:36:03,841 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label43_false-unreach-call.c [2018-11-07 00:36:03,865 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4410c3254/7e507e9231a644f2b79e16ae95511ca6/FLAG04a85bd80 [2018-11-07 00:36:03,887 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4410c3254/7e507e9231a644f2b79e16ae95511ca6 [2018-11-07 00:36:03,900 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 00:36:03,903 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 00:36:03,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 00:36:03,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 00:36:03,911 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 00:36:03,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:36:03" (1/1) ... [2018-11-07 00:36:03,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710be24e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:03, skipping insertion in model container [2018-11-07 00:36:03,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:36:03" (1/1) ... [2018-11-07 00:36:03,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 00:36:04,026 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 00:36:04,745 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:36:04,750 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 00:36:05,043 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:36:05,065 INFO L193 MainTranslator]: Completed translation [2018-11-07 00:36:05,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:05 WrapperNode [2018-11-07 00:36:05,066 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 00:36:05,067 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 00:36:05,067 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 00:36:05,068 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 00:36:05,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:05" (1/1) ... [2018-11-07 00:36:05,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:05" (1/1) ... [2018-11-07 00:36:05,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 00:36:05,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 00:36:05,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 00:36:05,278 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 00:36:05,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:05" (1/1) ... [2018-11-07 00:36:05,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:05" (1/1) ... [2018-11-07 00:36:05,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:05" (1/1) ... [2018-11-07 00:36:05,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:05" (1/1) ... [2018-11-07 00:36:05,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:05" (1/1) ... [2018-11-07 00:36:05,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:05" (1/1) ... [2018-11-07 00:36:05,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:05" (1/1) ... [2018-11-07 00:36:05,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 00:36:05,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 00:36:05,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 00:36:05,454 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 00:36:05,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:36:05,542 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 00:36:05,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 00:36:05,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 00:36:05,543 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 00:36:05,543 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 00:36:05,543 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 00:36:05,543 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 00:36:05,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 00:36:05,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 00:36:05,544 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 00:36:05,544 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 00:36:11,978 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 00:36:11,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:36:11 BoogieIcfgContainer [2018-11-07 00:36:11,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 00:36:11,980 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 00:36:11,980 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 00:36:11,984 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 00:36:11,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:36:03" (1/3) ... [2018-11-07 00:36:11,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0c1f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:36:11, skipping insertion in model container [2018-11-07 00:36:11,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:05" (2/3) ... [2018-11-07 00:36:11,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0c1f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:36:11, skipping insertion in model container [2018-11-07 00:36:11,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:36:11" (3/3) ... [2018-11-07 00:36:11,989 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label43_false-unreach-call.c [2018-11-07 00:36:12,000 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 00:36:12,010 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 00:36:12,029 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 00:36:12,076 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 00:36:12,076 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 00:36:12,076 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 00:36:12,077 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 00:36:12,077 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 00:36:12,077 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 00:36:12,077 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 00:36:12,077 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 00:36:12,125 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-07 00:36:12,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-07 00:36:12,135 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:36:12,137 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:36:12,139 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:36:12,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:36:12,148 INFO L82 PathProgramCache]: Analyzing trace with hash 447035884, now seen corresponding path program 1 times [2018-11-07 00:36:12,151 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:36:12,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:36:12,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:36:12,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:36:12,212 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:36:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:36:12,561 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:36:12,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:36:12,622 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:36:12,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 00:36:12,623 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:36:12,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 00:36:12,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 00:36:12,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 00:36:12,643 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-11-07 00:36:16,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:36:16,099 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-11-07 00:36:16,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 00:36:16,101 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-11-07 00:36:16,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:36:16,126 INFO L225 Difference]: With dead ends: 1156 [2018-11-07 00:36:16,126 INFO L226 Difference]: Without dead ends: 744 [2018-11-07 00:36:16,136 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 00:36:16,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-11-07 00:36:16,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-11-07 00:36:16,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-07 00:36:16,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1353 transitions. [2018-11-07 00:36:16,259 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1353 transitions. Word has length 16 [2018-11-07 00:36:16,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:36:16,260 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1353 transitions. [2018-11-07 00:36:16,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 00:36:16,260 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1353 transitions. [2018-11-07 00:36:16,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-11-07 00:36:16,266 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:36:16,267 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 00:36:16,267 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:36:16,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:36:16,268 INFO L82 PathProgramCache]: Analyzing trace with hash 803475559, now seen corresponding path program 1 times [2018-11-07 00:36:16,268 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:36:16,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:36:16,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:36:16,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:36:16,270 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:36:16,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:36:16,617 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:36:16,617 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:36:16,618 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:36:16,618 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:36:16,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:36:16,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:36:16,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:36:16,621 INFO L87 Difference]: Start difference. First operand 744 states and 1353 transitions. Second operand 6 states. [2018-11-07 00:36:24,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:36:24,182 INFO L93 Difference]: Finished difference Result 2184 states and 3997 transitions. [2018-11-07 00:36:24,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:36:24,193 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2018-11-07 00:36:24,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:36:24,207 INFO L225 Difference]: With dead ends: 2184 [2018-11-07 00:36:24,207 INFO L226 Difference]: Without dead ends: 1446 [2018-11-07 00:36:24,213 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 00:36:24,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2018-11-07 00:36:24,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1425. [2018-11-07 00:36:24,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2018-11-07 00:36:24,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2267 transitions. [2018-11-07 00:36:24,304 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2267 transitions. Word has length 109 [2018-11-07 00:36:24,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:36:24,305 INFO L480 AbstractCegarLoop]: Abstraction has 1425 states and 2267 transitions. [2018-11-07 00:36:24,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:36:24,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2267 transitions. [2018-11-07 00:36:24,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-11-07 00:36:24,314 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:36:24,315 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:36:24,315 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:36:24,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:36:24,315 INFO L82 PathProgramCache]: Analyzing trace with hash -983617648, now seen corresponding path program 1 times [2018-11-07 00:36:24,316 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:36:24,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:36:24,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:36:24,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:36:24,317 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:36:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:36:24,676 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 18 proven. 88 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 00:36:24,676 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:36:24,677 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:36:24,678 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 221 with the following transitions: [2018-11-07 00:36:24,680 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [207], [209], [212], [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], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 00:36:24,758 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:36:24,759 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:36:27,195 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:36:27,197 INFO L272 AbstractInterpreter]: Visited 116 different actions 116 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 00:36:27,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:36:27,235 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:36:29,165 INFO L227 lantSequenceWeakener]: Weakened 212 states. On average, predicates are now at 77.32% of their original sizes. [2018-11-07 00:36:29,165 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 00:36:29,617 INFO L415 sIntCurrentIteration]: We unified 219 AI predicates to 219 [2018-11-07 00:36:29,618 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 00:36:29,619 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 00:36:29,619 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-07 00:36:29,619 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:36:29,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 00:36:29,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 00:36:29,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 00:36:29,621 INFO L87 Difference]: Start difference. First operand 1425 states and 2267 transitions. Second operand 7 states. [2018-11-07 00:36:32,066 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:37:00,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:37:00,238 INFO L93 Difference]: Finished difference Result 3184 states and 5088 transitions. [2018-11-07 00:37:00,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:37:00,238 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 220 [2018-11-07 00:37:00,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:37:00,248 INFO L225 Difference]: With dead ends: 3184 [2018-11-07 00:37:00,248 INFO L226 Difference]: Without dead ends: 1765 [2018-11-07 00:37:00,252 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 220 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 00:37:00,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2018-11-07 00:37:00,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1763. [2018-11-07 00:37:00,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1763 states. [2018-11-07 00:37:00,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2612 transitions. [2018-11-07 00:37:00,300 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 2612 transitions. Word has length 220 [2018-11-07 00:37:00,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:37:00,301 INFO L480 AbstractCegarLoop]: Abstraction has 1763 states and 2612 transitions. [2018-11-07 00:37:00,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 00:37:00,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 2612 transitions. [2018-11-07 00:37:00,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2018-11-07 00:37:00,306 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:37:00,307 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 00:37:00,307 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:37:00,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:37:00,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1465497490, now seen corresponding path program 1 times [2018-11-07 00:37:00,308 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:37:00,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:37:00,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:37:00,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:37:00,309 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:37:00,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:37:00,640 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:37:00,976 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 33 proven. 197 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-07 00:37:00,976 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:37:00,976 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:37:00,977 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 313 with the following transitions: [2018-11-07 00:37:00,977 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [207], [209], [212], [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], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 00:37:00,982 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:37:00,983 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:37:03,056 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:37:14,098 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:37:14,098 INFO L272 AbstractInterpreter]: Visited 120 different actions 461 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 00:37:14,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:37:14,106 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:37:17,979 INFO L227 lantSequenceWeakener]: Weakened 117 states. On average, predicates are now at 77.61% of their original sizes. [2018-11-07 00:37:17,979 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 00:38:27,666 INFO L415 sIntCurrentIteration]: We unified 311 AI predicates to 311 [2018-11-07 00:38:27,666 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 00:38:27,667 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 00:38:27,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21 [2018-11-07 00:38:27,667 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:38:27,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-07 00:38:27,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-07 00:38:27,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2018-11-07 00:38:27,669 INFO L87 Difference]: Start difference. First operand 1763 states and 2612 transitions. Second operand 17 states. Received shutdown request... [2018-11-07 00:40:05,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-07 00:40:05,497 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 00:40:05,505 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 00:40:05,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:40:05 BoogieIcfgContainer [2018-11-07 00:40:05,506 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 00:40:05,507 INFO L168 Benchmark]: Toolchain (without parser) took 241606.34 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -21.4 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-11-07 00:40:05,509 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 00:40:05,509 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1162.62 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-11-07 00:40:05,510 INFO L168 Benchmark]: Boogie Procedure Inliner took 210.37 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 721.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -848.5 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-11-07 00:40:05,512 INFO L168 Benchmark]: Boogie Preprocessor took 174.75 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 00:40:05,512 INFO L168 Benchmark]: RCFGBuilder took 6525.85 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 256.5 MB). Peak memory consumption was 256.5 MB. Max. memory is 7.1 GB. [2018-11-07 00:40:05,513 INFO L168 Benchmark]: TraceAbstraction took 233526.43 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 1.4 GB in the end (delta: 486.0 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-11-07 00:40:05,518 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 1162.62 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 210.37 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 721.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -848.5 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 174.75 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 6525.85 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 256.5 MB). Peak memory consumption was 256.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 233526.43 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 1.4 GB in the end (delta: 486.0 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: 34]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 34). Cancelled while BasicCegarLoop was constructing difference of abstraction (1763states) and FLOYD_HOARE automaton (currently 22 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (828 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 233.4s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 139.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 702 SDtfs, 5054 SDslu, 352 SDs, 0 SdLazy, 5273 SolverSat, 1855 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 57.6s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 553 GetRequests, 400 SyntacticMatches, 117 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 71.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1763occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 15.6s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9953889800382828 AbsIntWeakeningRatio, 0.10943396226415095 AbsIntAvgWeakeningVarsNumRemoved, 404.0943396226415 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 23 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 657 NumberOfCodeBlocks, 657 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 653 ConstructedInterpolants, 0 QuantifiedInterpolants, 510245 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 139/424 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown