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/Problem11_label34_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:13:03,592 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:13:03,594 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:13:03,609 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:13:03,609 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:13:03,610 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:13:03,612 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:13:03,615 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:13:03,616 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:13:03,617 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:13:03,618 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:13:03,619 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:13:03,624 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:13:03,625 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:13:03,626 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:13:03,627 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:13:03,628 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:13:03,630 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:13:03,632 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:13:03,634 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:13:03,636 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:13:03,639 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:13:03,645 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 18:13:03,645 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 18:13:03,645 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 18:13:03,646 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 18:13:03,649 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 18:13:03,650 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 18:13:03,651 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 18:13:03,652 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 18:13:03,654 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 18:13:03,655 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 18:13:03,660 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 18:13:03,679 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:13:03,679 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:13:03,680 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:13:03,680 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:13:03,681 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:13:03,681 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:13:03,681 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:13:03,681 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:13:03,681 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:13:03,682 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:13:03,682 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:13:03,682 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:13:03,683 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:13:03,683 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:13:03,683 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:13:03,683 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:13:03,684 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:13:03,684 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:13:03,684 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:13:03,684 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:13:03,684 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:13:03,685 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:13:03,685 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:13:03,685 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:13:03,685 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:13:03,685 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:13:03,686 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:13:03,686 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:13:03,686 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:13:03,686 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:13:03,686 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:13:03,687 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:13:03,687 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:13:03,687 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:13:03,738 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:13:03,757 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:13:03,761 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:13:03,763 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:13:03,763 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:13:03,764 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label34_false-unreach-call.c [2018-10-24 18:13:03,837 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/85584c473/b3948b521c7246d1a8241fe7cf867fe2/FLAG7aa7c0f97 [2018-10-24 18:13:04,455 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:13:04,458 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label34_false-unreach-call.c [2018-10-24 18:13:04,478 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/85584c473/b3948b521c7246d1a8241fe7cf867fe2/FLAG7aa7c0f97 [2018-10-24 18:13:04,498 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/85584c473/b3948b521c7246d1a8241fe7cf867fe2 [2018-10-24 18:13:04,512 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:13:04,514 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:13:04,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:13:04,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:13:04,521 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:13:04,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:13:04" (1/1) ... [2018-10-24 18:13:04,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5211ccae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:04, skipping insertion in model container [2018-10-24 18:13:04,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:13:04" (1/1) ... [2018-10-24 18:13:04,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:13:04,612 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:13:05,239 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:13:05,244 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:13:05,419 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:13:05,443 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:13:05,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:05 WrapperNode [2018-10-24 18:13:05,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:13:05,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:13:05,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:13:05,446 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:13:05,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:05" (1/1) ... [2018-10-24 18:13:05,494 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:05" (1/1) ... [2018-10-24 18:13:05,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:13:05,772 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:13:05,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:13:05,773 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:13:05,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:05" (1/1) ... [2018-10-24 18:13:05,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:05" (1/1) ... [2018-10-24 18:13:05,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:05" (1/1) ... [2018-10-24 18:13:05,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:05" (1/1) ... [2018-10-24 18:13:05,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:05" (1/1) ... [2018-10-24 18:13:05,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:05" (1/1) ... [2018-10-24 18:13:05,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:05" (1/1) ... [2018-10-24 18:13:05,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:13:05,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:13:05,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:13:05,917 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:13:05,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:13:05,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:13:05,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:13:05,997 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:13:05,997 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:13:06,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:13:06,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:13:06,000 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:13:06,000 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:13:10,830 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:13:10,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:13:10 BoogieIcfgContainer [2018-10-24 18:13:10,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:13:10,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:13:10,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:13:10,836 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:13:10,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:13:04" (1/3) ... [2018-10-24 18:13:10,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240a01f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:13:10, skipping insertion in model container [2018-10-24 18:13:10,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:05" (2/3) ... [2018-10-24 18:13:10,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240a01f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:13:10, skipping insertion in model container [2018-10-24 18:13:10,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:13:10" (3/3) ... [2018-10-24 18:13:10,841 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label34_false-unreach-call.c [2018-10-24 18:13:10,854 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:13:10,866 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:13:10,887 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:13:10,931 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:13:10,931 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:13:10,932 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:13:10,932 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:13:10,932 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:13:10,932 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:13:10,932 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:13:10,933 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:13:10,965 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-24 18:13:10,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-24 18:13:10,973 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:13:10,974 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:13:10,977 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:13:10,983 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:13:10,984 INFO L82 PathProgramCache]: Analyzing trace with hash -156689455, now seen corresponding path program 1 times [2018-10-24 18:13:10,987 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:13:11,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:13:11,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:13:11,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:13:11,040 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:13:11,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:13:11,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:13:11,422 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:13:11,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:13:11,422 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:13:11,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:13:11,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:13:11,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:13:11,451 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-10-24 18:13:15,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:13:15,195 INFO L93 Difference]: Finished difference Result 998 states and 1780 transitions. [2018-10-24 18:13:15,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:13:15,199 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-10-24 18:13:15,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:13:15,224 INFO L225 Difference]: With dead ends: 998 [2018-10-24 18:13:15,224 INFO L226 Difference]: Without dead ends: 699 [2018-10-24 18:13:15,235 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:13:15,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2018-10-24 18:13:15,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 693. [2018-10-24 18:13:15,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2018-10-24 18:13:15,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1109 transitions. [2018-10-24 18:13:15,341 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1109 transitions. Word has length 15 [2018-10-24 18:13:15,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:13:15,341 INFO L481 AbstractCegarLoop]: Abstraction has 693 states and 1109 transitions. [2018-10-24 18:13:15,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:13:15,342 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1109 transitions. [2018-10-24 18:13:15,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-10-24 18:13:15,347 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:13:15,347 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:13:15,348 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:13:15,348 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:13:15,348 INFO L82 PathProgramCache]: Analyzing trace with hash -2034411636, now seen corresponding path program 1 times [2018-10-24 18:13:15,348 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:13:15,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:13:15,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:13:15,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:13:15,350 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:13:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:13:15,973 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:13:15,973 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:13:15,973 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-24 18:13:15,974 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:13:15,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 18:13:15,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 18:13:15,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 18:13:15,977 INFO L87 Difference]: Start difference. First operand 693 states and 1109 transitions. Second operand 7 states. [2018-10-24 18:13:23,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:13:23,129 INFO L93 Difference]: Finished difference Result 2545 states and 4232 transitions. [2018-10-24 18:13:23,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-24 18:13:23,133 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2018-10-24 18:13:23,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:13:23,151 INFO L225 Difference]: With dead ends: 2545 [2018-10-24 18:13:23,152 INFO L226 Difference]: Without dead ends: 1858 [2018-10-24 18:13:23,159 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-10-24 18:13:23,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1858 states. [2018-10-24 18:13:23,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1858 to 1430. [2018-10-24 18:13:23,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1430 states. [2018-10-24 18:13:23,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 2146 transitions. [2018-10-24 18:13:23,268 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 2146 transitions. Word has length 89 [2018-10-24 18:13:23,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:13:23,269 INFO L481 AbstractCegarLoop]: Abstraction has 1430 states and 2146 transitions. [2018-10-24 18:13:23,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 18:13:23,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 2146 transitions. [2018-10-24 18:13:23,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-10-24 18:13:23,283 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:13:23,284 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:13:23,284 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:13:23,285 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:13:23,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1290518434, now seen corresponding path program 1 times [2018-10-24 18:13:23,285 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:13:23,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:13:23,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:13:23,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:13:23,288 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:13:23,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:13:23,718 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 16 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 18:13:23,719 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:13:23,719 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:13:23,720 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 163 with the following transitions: [2018-10-24 18:13:23,723 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [21], [23], [26], [34], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [510], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 18:13:23,797 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:13:23,798 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:13:25,619 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:13:26,558 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:13:26,559 INFO L272 AbstractInterpreter]: Visited 79 different actions 79 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-10-24 18:13:26,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:13:26,599 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:13:28,984 INFO L232 lantSequenceWeakener]: Weakened 154 states. On average, predicates are now at 72.98% of their original sizes. [2018-10-24 18:13:28,986 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:13:29,474 INFO L413 sIntCurrentIteration]: We have 161 unified AI predicates [2018-10-24 18:13:29,474 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:13:29,475 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:13:29,475 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 18:13:29,476 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:13:29,476 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 18:13:29,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 18:13:29,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 18:13:29,477 INFO L87 Difference]: Start difference. First operand 1430 states and 2146 transitions. Second operand 7 states. [2018-10-24 18:13:53,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:13:53,019 INFO L93 Difference]: Finished difference Result 3046 states and 4498 transitions. [2018-10-24 18:13:53,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:13:53,020 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 162 [2018-10-24 18:13:53,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:13:53,028 INFO L225 Difference]: With dead ends: 3046 [2018-10-24 18:13:53,029 INFO L226 Difference]: Without dead ends: 1622 [2018-10-24 18:13:53,033 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 162 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:13:53,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2018-10-24 18:13:53,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1620. [2018-10-24 18:13:53,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1620 states. [2018-10-24 18:13:53,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2345 transitions. [2018-10-24 18:13:53,085 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2345 transitions. Word has length 162 [2018-10-24 18:13:53,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:13:53,086 INFO L481 AbstractCegarLoop]: Abstraction has 1620 states and 2345 transitions. [2018-10-24 18:13:53,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 18:13:53,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2345 transitions. [2018-10-24 18:13:53,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-10-24 18:13:53,089 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:13:53,089 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:13:53,090 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:13:53,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:13:53,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1546151690, now seen corresponding path program 1 times [2018-10-24 18:13:53,090 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:13:53,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:13:53,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:13:53,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:13:53,092 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:13:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:13:53,564 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-24 18:13:53,564 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:13:53,564 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:13:53,565 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 164 with the following transitions: [2018-10-24 18:13:53,566 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [21], [23], [26], [34], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [777], [781], [785], [789], [793], [797], [808], [812], [816], [820], [824], [828], [832], [843], [847], [851], [862], [866], [869], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 18:13:53,589 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:13:53,589 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:13:57,979 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:14:15,616 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:14:15,616 INFO L272 AbstractInterpreter]: Visited 155 different actions 453 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-24 18:14:15,635 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:14:15,635 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:14:17,474 INFO L232 lantSequenceWeakener]: Weakened 30 states. On average, predicates are now at 74.68% of their original sizes. [2018-10-24 18:14:17,474 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:14:38,910 INFO L413 sIntCurrentIteration]: We have 162 unified AI predicates [2018-10-24 18:14:38,911 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:14:38,911 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:14:38,911 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [5] total 21 [2018-10-24 18:14:38,912 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:14:38,913 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-24 18:14:38,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-24 18:14:38,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-10-24 18:14:38,914 INFO L87 Difference]: Start difference. First operand 1620 states and 2345 transitions. Second operand 18 states. Received shutdown request... [2018-10-24 18:17:06,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-24 18:17:06,268 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:17:06,276 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:17:06,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:17:06 BoogieIcfgContainer [2018-10-24 18:17:06,276 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:17:06,277 INFO L168 Benchmark]: Toolchain (without parser) took 241764.28 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -248.0 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-10-24 18:17:06,279 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 18:17:06,280 INFO L168 Benchmark]: CACSL2BoogieTranslator took 929.51 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-10-24 18:17:06,281 INFO L168 Benchmark]: Boogie Procedure Inliner took 326.74 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 736.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -829.7 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2018-10-24 18:17:06,282 INFO L168 Benchmark]: Boogie Preprocessor took 144.32 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. [2018-10-24 18:17:06,282 INFO L168 Benchmark]: RCFGBuilder took 4914.29 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 187.7 MB). Peak memory consumption was 187.7 MB. Max. memory is 7.1 GB. [2018-10-24 18:17:06,283 INFO L168 Benchmark]: TraceAbstraction took 235444.04 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 1.6 GB in the end (delta: 341.2 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-10-24 18:17:06,288 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 929.51 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 326.74 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 736.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -829.7 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 144.32 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 4914.29 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 187.7 MB). Peak memory consumption was 187.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 235444.04 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 1.6 GB in the end (delta: 341.2 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 30]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 30). Cancelled while BasicCegarLoop was constructing difference of abstraction (1620states) and FLOYD_HOARE automaton (currently 21 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (1467 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 235.3s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 181.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 782 SDtfs, 3003 SDslu, 1063 SDs, 0 SdLazy, 5994 SolverSat, 1006 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 81.0s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 356 GetRequests, 292 SyntacticMatches, 17 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 27.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1620occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 24.9s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9944346159516441 AbsIntWeakeningRatio, 0.15479876160990713 AbsIntAvgWeakeningVarsNumRemoved, 1026.0495356037152 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 436 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 429 NumberOfCodeBlocks, 429 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 425 ConstructedInterpolants, 0 QuantifiedInterpolants, 299835 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 33/105 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown