java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label59_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:54:10,915 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:54:10,918 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:54:10,932 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:54:10,933 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:54:10,934 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:54:10,935 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:54:10,937 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:54:10,938 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:54:10,939 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:54:10,940 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:54:10,941 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:54:10,941 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:54:10,942 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:54:10,944 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:54:10,944 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:54:10,945 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:54:10,947 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:54:10,949 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:54:10,951 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:54:10,952 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:54:10,953 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:54:10,956 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 21:54:10,964 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 21:54:10,979 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:54:10,980 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:54:10,981 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:54:10,981 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:54:10,981 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:54:10,981 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:54:10,981 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:54:10,982 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:54:10,982 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:54:10,983 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:54:10,983 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:54:10,984 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:54:10,984 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:54:10,984 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:54:10,985 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:54:10,985 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:54:10,985 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:54:10,985 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:54:10,986 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:54:10,986 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:54:10,986 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:54:10,986 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:54:10,986 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:54:10,987 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:54:10,987 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:54:10,987 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:54:10,987 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:54:10,987 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:54:10,988 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:54:10,988 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:54:10,988 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:54:10,988 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:54:10,988 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:54:10,989 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:54:11,054 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:54:11,072 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:54:11,077 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:54:11,078 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:54:11,079 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:54:11,079 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label59_true-unreach-call.c [2018-10-24 21:54:11,141 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3cdfac1db/f17683f39c264a8193ae4fe25a1ca2b2/FLAG3c08d041f [2018-10-24 21:54:11,887 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:54:11,888 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label59_true-unreach-call.c [2018-10-24 21:54:11,910 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3cdfac1db/f17683f39c264a8193ae4fe25a1ca2b2/FLAG3c08d041f [2018-10-24 21:54:11,929 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3cdfac1db/f17683f39c264a8193ae4fe25a1ca2b2 [2018-10-24 21:54:11,942 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:54:11,944 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:54:11,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:54:11,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:54:11,953 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:54:11,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:54:11" (1/1) ... [2018-10-24 21:54:11,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b5a5b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:11, skipping insertion in model container [2018-10-24 21:54:11,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:54:11" (1/1) ... [2018-10-24 21:54:11,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:54:12,077 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:54:12,903 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:54:12,915 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:54:13,233 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:54:13,255 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:54:13,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:13 WrapperNode [2018-10-24 21:54:13,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:54:13,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:54:13,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:54:13,257 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:54:13,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:13" (1/1) ... [2018-10-24 21:54:13,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:13" (1/1) ... [2018-10-24 21:54:13,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:54:13,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:54:13,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:54:13,657 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:54:13,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:13" (1/1) ... [2018-10-24 21:54:13,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:13" (1/1) ... [2018-10-24 21:54:13,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:13" (1/1) ... [2018-10-24 21:54:13,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:13" (1/1) ... [2018-10-24 21:54:13,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:13" (1/1) ... [2018-10-24 21:54:13,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:13" (1/1) ... [2018-10-24 21:54:13,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:13" (1/1) ... [2018-10-24 21:54:13,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:54:13,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:54:13,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:54:13,839 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:54:13,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:54:13,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:54:13,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:54:13,914 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 21:54:13,914 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 21:54:13,914 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:54:13,914 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:54:13,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:54:13,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:54:13,915 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:54:13,915 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:54:23,243 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:54:23,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:54:23 BoogieIcfgContainer [2018-10-24 21:54:23,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:54:23,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:54:23,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:54:23,252 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:54:23,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:54:11" (1/3) ... [2018-10-24 21:54:23,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dae162d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:54:23, skipping insertion in model container [2018-10-24 21:54:23,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:13" (2/3) ... [2018-10-24 21:54:23,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dae162d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:54:23, skipping insertion in model container [2018-10-24 21:54:23,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:54:23" (3/3) ... [2018-10-24 21:54:23,256 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label59_true-unreach-call.c [2018-10-24 21:54:23,266 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:54:23,277 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:54:23,295 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:54:23,336 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:54:23,337 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:54:23,337 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:54:23,337 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:54:23,337 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:54:23,338 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:54:23,338 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:54:23,338 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:54:23,369 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-24 21:54:23,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-10-24 21:54:23,379 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:54:23,381 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:54:23,383 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:54:23,389 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:54:23,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1120743887, now seen corresponding path program 1 times [2018-10-24 21:54:23,392 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:54:23,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:54:23,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:54:23,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:54:23,450 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:54:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:54:23,962 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-24 21:54:24,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:54:24,040 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:54:24,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:54:24,040 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:54:24,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:54:24,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:54:24,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:54:24,065 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-10-24 21:54:33,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:54:33,198 INFO L93 Difference]: Finished difference Result 1558 states and 2849 transitions. [2018-10-24 21:54:33,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:54:33,202 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-10-24 21:54:33,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:54:33,235 INFO L225 Difference]: With dead ends: 1558 [2018-10-24 21:54:33,236 INFO L226 Difference]: Without dead ends: 1114 [2018-10-24 21:54:33,248 INFO L605 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 [2018-10-24 21:54:33,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2018-10-24 21:54:33,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 759. [2018-10-24 21:54:33,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 759 states. [2018-10-24 21:54:33,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1355 transitions. [2018-10-24 21:54:33,373 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1355 transitions. Word has length 61 [2018-10-24 21:54:33,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:54:33,374 INFO L481 AbstractCegarLoop]: Abstraction has 759 states and 1355 transitions. [2018-10-24 21:54:33,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:54:33,375 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1355 transitions. [2018-10-24 21:54:33,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-10-24 21:54:33,383 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:54:33,384 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:54:33,384 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:54:33,384 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:54:33,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1471271461, now seen corresponding path program 1 times [2018-10-24 21:54:33,384 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:54:33,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:54:33,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:54:33,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:54:33,386 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:54:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:54:33,670 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:54:33,670 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:54:33,670 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 21:54:33,670 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:54:33,673 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 21:54:33,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 21:54:33,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 21:54:33,674 INFO L87 Difference]: Start difference. First operand 759 states and 1355 transitions. Second operand 5 states. [2018-10-24 21:54:50,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:54:50,973 INFO L93 Difference]: Finished difference Result 2506 states and 4577 transitions. [2018-10-24 21:54:50,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:54:50,979 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 131 [2018-10-24 21:54:50,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:54:50,997 INFO L225 Difference]: With dead ends: 2506 [2018-10-24 21:54:50,997 INFO L226 Difference]: Without dead ends: 1753 [2018-10-24 21:54:51,003 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-24 21:54:51,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2018-10-24 21:54:51,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 1733. [2018-10-24 21:54:51,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1733 states. [2018-10-24 21:54:51,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 3007 transitions. [2018-10-24 21:54:51,103 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 3007 transitions. Word has length 131 [2018-10-24 21:54:51,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:54:51,104 INFO L481 AbstractCegarLoop]: Abstraction has 1733 states and 3007 transitions. [2018-10-24 21:54:51,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 21:54:51,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 3007 transitions. [2018-10-24 21:54:51,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-10-24 21:54:51,118 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:54:51,119 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:54:51,119 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:54:51,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:54:51,120 INFO L82 PathProgramCache]: Analyzing trace with hash -708902120, now seen corresponding path program 1 times [2018-10-24 21:54:51,122 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:54:51,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:54:51,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:54:51,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:54:51,123 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:54:51,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:54:51,534 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:54:51,535 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:54:51,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:54:51,535 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:54:51,536 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:54:51,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:54:51,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:54:51,537 INFO L87 Difference]: Start difference. First operand 1733 states and 3007 transitions. Second operand 6 states. [2018-10-24 21:55:04,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:55:04,867 INFO L93 Difference]: Finished difference Result 5411 states and 10016 transitions. [2018-10-24 21:55:04,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 21:55:04,868 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2018-10-24 21:55:04,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:55:04,904 INFO L225 Difference]: With dead ends: 5411 [2018-10-24 21:55:04,904 INFO L226 Difference]: Without dead ends: 3684 [2018-10-24 21:55:04,929 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 21:55:04,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3684 states. [2018-10-24 21:55:05,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3684 to 3593. [2018-10-24 21:55:05,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3593 states. [2018-10-24 21:55:05,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3593 states to 3593 states and 5519 transitions. [2018-10-24 21:55:05,068 INFO L78 Accepts]: Start accepts. Automaton has 3593 states and 5519 transitions. Word has length 132 [2018-10-24 21:55:05,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:55:05,074 INFO L481 AbstractCegarLoop]: Abstraction has 3593 states and 5519 transitions. [2018-10-24 21:55:05,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:55:05,074 INFO L276 IsEmpty]: Start isEmpty. Operand 3593 states and 5519 transitions. [2018-10-24 21:55:05,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-10-24 21:55:05,077 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:55:05,078 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:55:05,078 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:55:05,078 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:55:05,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1451874528, now seen corresponding path program 1 times [2018-10-24 21:55:05,079 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:55:05,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:55:05,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:55:05,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:55:05,081 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:55:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:55:05,380 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:55:05,381 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:55:05,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:55:05,381 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:55:05,382 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:55:05,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:55:05,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:55:05,383 INFO L87 Difference]: Start difference. First operand 3593 states and 5519 transitions. Second operand 6 states. [2018-10-24 21:55:13,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:55:13,441 INFO L93 Difference]: Finished difference Result 10285 states and 17044 transitions. [2018-10-24 21:55:13,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:55:13,442 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2018-10-24 21:55:13,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:55:13,490 INFO L225 Difference]: With dead ends: 10285 [2018-10-24 21:55:13,490 INFO L226 Difference]: Without dead ends: 7007 [2018-10-24 21:55:13,528 INFO L605 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 [2018-10-24 21:55:13,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7007 states. [2018-10-24 21:55:13,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7007 to 6952. [2018-10-24 21:55:13,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6952 states. [2018-10-24 21:55:13,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6952 states to 6952 states and 10130 transitions. [2018-10-24 21:55:13,732 INFO L78 Accepts]: Start accepts. Automaton has 6952 states and 10130 transitions. Word has length 136 [2018-10-24 21:55:13,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:55:13,733 INFO L481 AbstractCegarLoop]: Abstraction has 6952 states and 10130 transitions. [2018-10-24 21:55:13,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:55:13,733 INFO L276 IsEmpty]: Start isEmpty. Operand 6952 states and 10130 transitions. [2018-10-24 21:55:13,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-10-24 21:55:13,738 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:55:13,738 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:55:13,739 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:55:13,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:55:13,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1453868313, now seen corresponding path program 1 times [2018-10-24 21:55:13,740 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:55:13,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:55:13,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:55:13,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:55:13,741 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:55:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:55:14,038 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:55:14,039 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:55:14,039 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:55:14,040 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 158 with the following transitions: [2018-10-24 21:55:14,042 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 21:55:14,108 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:55:14,109 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:55:16,032 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:55:22,121 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:55:22,123 INFO L272 AbstractInterpreter]: Visited 103 different actions 296 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 21:55:22,141 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:55:22,141 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:55:24,243 INFO L232 lantSequenceWeakener]: Weakened 13 states. On average, predicates are now at 83.22% of their original sizes. [2018-10-24 21:55:24,243 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:56:19,073 INFO L413 sIntCurrentIteration]: We have 156 unified AI predicates [2018-10-24 21:56:19,073 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:56:19,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:56:19,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [7] total 22 [2018-10-24 21:56:19,076 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:56:19,076 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-24 21:56:19,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-24 21:56:19,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2018-10-24 21:56:19,077 INFO L87 Difference]: Start difference. First operand 6952 states and 10130 transitions. Second operand 17 states. Received shutdown request... [2018-10-24 21:58:23,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-24 21:58:23,334 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:58:23,338 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:58:23,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:58:23 BoogieIcfgContainer [2018-10-24 21:58:23,339 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:58:23,340 INFO L168 Benchmark]: Toolchain (without parser) took 251396.52 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -865.2 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-24 21:58:23,341 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:58:23,341 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1310.85 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-10-24 21:58:23,342 INFO L168 Benchmark]: Boogie Procedure Inliner took 399.42 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 745.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -862.8 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2018-10-24 21:58:23,343 INFO L168 Benchmark]: Boogie Preprocessor took 181.53 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. [2018-10-24 21:58:23,344 INFO L168 Benchmark]: RCFGBuilder took 9405.95 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 302.5 MB). Peak memory consumption was 302.5 MB. Max. memory is 7.1 GB. [2018-10-24 21:58:23,345 INFO L168 Benchmark]: TraceAbstraction took 240093.50 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.8 GB in the beginning and 2.3 GB in the end (delta: -438.2 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-24 21:58:23,350 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 1310.85 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 399.42 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 745.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -862.8 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 181.53 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9405.95 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 302.5 MB). Peak memory consumption was 302.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 240093.50 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.8 GB in the beginning and 2.3 GB in the end (delta: -438.2 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 169]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 169). Cancelled while BasicCegarLoop was constructing difference of abstraction (6952states) and FLOYD_HOARE automaton (currently 20 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (1979 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 240.0s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 172.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 683 SDtfs, 7721 SDslu, 936 SDs, 0 SdLazy, 12456 SolverSat, 2456 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 85.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 200 GetRequests, 94 SyntacticMatches, 60 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 59.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6952occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 8.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9940774804905242 AbsIntWeakeningRatio, 0.1282051282051282 AbsIntAvgWeakeningVarsNumRemoved, 406.81410256410254 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 521 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 617 NumberOfCodeBlocks, 617 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 612 ConstructedInterpolants, 0 QuantifiedInterpolants, 336543 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 162/216 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown