java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label40_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 12:05:08,771 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 12:05:08,775 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 12:05:08,794 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 12:05:08,795 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 12:05:08,796 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 12:05:08,798 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 12:05:08,800 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 12:05:08,810 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 12:05:08,811 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 12:05:08,812 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 12:05:08,813 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 12:05:08,813 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 12:05:08,815 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 12:05:08,816 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 12:05:08,819 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 12:05:08,820 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 12:05:08,823 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 12:05:08,826 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 12:05:08,830 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 12:05:08,831 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 12:05:08,834 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 12:05:08,837 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 12:05:08,838 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 12:05:08,838 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 12:05:08,839 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 12:05:08,842 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 12:05:08,843 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 12:05:08,843 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 12:05:08,846 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 12:05:08,846 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 12:05:08,848 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-07 12:05:08,850 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf [2018-11-07 12:05:08,879 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 12:05:08,880 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 12:05:08,881 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 12:05:08,881 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 12:05:08,881 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 12:05:08,881 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 12:05:08,882 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 12:05:08,884 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 12:05:08,885 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 12:05:08,885 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 12:05:08,885 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 12:05:08,885 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 12:05:08,886 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 12:05:08,886 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 12:05:08,888 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 12:05:08,888 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 12:05:08,888 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 12:05:08,888 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 12:05:08,888 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 12:05:08,889 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 12:05:08,889 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 12:05:08,889 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 12:05:08,889 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 12:05:08,890 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 12:05:08,891 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 12:05:08,891 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 12:05:08,891 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 12:05:08,891 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 12:05:08,892 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 12:05:08,892 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 12:05:08,892 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 12:05:08,892 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 12:05:08,892 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 12:05:08,893 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 12:05:08,964 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 12:05:08,980 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 12:05:08,984 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 12:05:08,986 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 12:05:08,986 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 12:05:08,987 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label40_false-unreach-call_false-termination.c [2018-11-07 12:05:09,053 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b97bc21d/0d6f3e6276e34157aaefbf701ce8ae02/FLAG520c167ba [2018-11-07 12:05:09,612 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 12:05:09,613 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label40_false-unreach-call_false-termination.c [2018-11-07 12:05:09,630 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b97bc21d/0d6f3e6276e34157aaefbf701ce8ae02/FLAG520c167ba [2018-11-07 12:05:09,651 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b97bc21d/0d6f3e6276e34157aaefbf701ce8ae02 [2018-11-07 12:05:09,665 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 12:05:09,667 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 12:05:09,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 12:05:09,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 12:05:09,677 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 12:05:09,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:05:09" (1/1) ... [2018-11-07 12:05:09,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b0efbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:09, skipping insertion in model container [2018-11-07 12:05:09,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:05:09" (1/1) ... [2018-11-07 12:05:09,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 12:05:09,778 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 12:05:10,266 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 12:05:10,275 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 12:05:10,455 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 12:05:10,474 INFO L193 MainTranslator]: Completed translation [2018-11-07 12:05:10,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:10 WrapperNode [2018-11-07 12:05:10,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 12:05:10,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 12:05:10,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 12:05:10,476 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 12:05:10,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:10" (1/1) ... [2018-11-07 12:05:10,616 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:10" (1/1) ... [2018-11-07 12:05:10,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 12:05:10,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 12:05:10,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 12:05:10,625 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 12:05:10,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:10" (1/1) ... [2018-11-07 12:05:10,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:10" (1/1) ... [2018-11-07 12:05:10,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:10" (1/1) ... [2018-11-07 12:05:10,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:10" (1/1) ... [2018-11-07 12:05:10,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:10" (1/1) ... [2018-11-07 12:05:10,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:10" (1/1) ... [2018-11-07 12:05:10,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:10" (1/1) ... [2018-11-07 12:05:10,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 12:05:10,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 12:05:10,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 12:05:10,761 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 12:05:10,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 12:05:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 12:05:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 12:05:10,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 12:05:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 12:05:10,851 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 12:05:10,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 12:05:10,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 12:05:10,851 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 12:05:10,852 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 12:05:14,402 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 12:05:14,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:05:14 BoogieIcfgContainer [2018-11-07 12:05:14,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 12:05:14,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 12:05:14,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 12:05:14,408 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 12:05:14,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:05:09" (1/3) ... [2018-11-07 12:05:14,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38045993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:05:14, skipping insertion in model container [2018-11-07 12:05:14,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:10" (2/3) ... [2018-11-07 12:05:14,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38045993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:05:14, skipping insertion in model container [2018-11-07 12:05:14,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:05:14" (3/3) ... [2018-11-07 12:05:14,412 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label40_false-unreach-call_false-termination.c [2018-11-07 12:05:14,423 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 12:05:14,432 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 12:05:14,450 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 12:05:14,489 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 12:05:14,489 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 12:05:14,489 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 12:05:14,489 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 12:05:14,489 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 12:05:14,490 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 12:05:14,490 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 12:05:14,490 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 12:05:14,519 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-11-07 12:05:14,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-07 12:05:14,527 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 12:05:14,528 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] [2018-11-07 12:05:14,532 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 12:05:14,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 12:05:14,538 INFO L82 PathProgramCache]: Analyzing trace with hash -35569548, now seen corresponding path program 1 times [2018-11-07 12:05:14,540 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 12:05:14,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:05:14,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 12:05:14,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:05:14,589 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 12:05:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 12:05:15,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 12:05:15,074 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 12:05:15,074 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 12:05:15,075 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 12:05:15,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 12:05:15,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 12:05:15,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 12:05:15,101 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 4 states. [2018-11-07 12:05:18,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 12:05:18,125 INFO L93 Difference]: Finished difference Result 878 states and 1595 transitions. [2018-11-07 12:05:18,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 12:05:18,131 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2018-11-07 12:05:18,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 12:05:18,153 INFO L225 Difference]: With dead ends: 878 [2018-11-07 12:05:18,154 INFO L226 Difference]: Without dead ends: 617 [2018-11-07 12:05:18,163 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 12:05:18,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2018-11-07 12:05:18,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 617. [2018-11-07 12:05:18,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 617 states. [2018-11-07 12:05:18,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 1129 transitions. [2018-11-07 12:05:18,267 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 1129 transitions. Word has length 26 [2018-11-07 12:05:18,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 12:05:18,268 INFO L480 AbstractCegarLoop]: Abstraction has 617 states and 1129 transitions. [2018-11-07 12:05:18,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 12:05:18,268 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 1129 transitions. [2018-11-07 12:05:18,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-11-07 12:05:18,279 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 12:05:18,279 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 12:05:18,280 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 12:05:18,280 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 12:05:18,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1735670092, now seen corresponding path program 1 times [2018-11-07 12:05:18,281 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 12:05:18,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:05:18,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 12:05:18,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:05:18,283 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 12:05:18,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 12:05:18,732 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 12:05:18,733 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 12:05:18,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 12:05:18,733 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 12:05:18,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 12:05:18,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 12:05:18,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 12:05:18,737 INFO L87 Difference]: Start difference. First operand 617 states and 1129 transitions. Second operand 6 states. [2018-11-07 12:05:21,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 12:05:21,338 INFO L93 Difference]: Finished difference Result 1620 states and 3026 transitions. [2018-11-07 12:05:21,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 12:05:21,339 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2018-11-07 12:05:21,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 12:05:21,354 INFO L225 Difference]: With dead ends: 1620 [2018-11-07 12:05:21,355 INFO L226 Difference]: Without dead ends: 1009 [2018-11-07 12:05:21,359 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 12:05:21,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2018-11-07 12:05:21,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 997. [2018-11-07 12:05:21,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 997 states. [2018-11-07 12:05:21,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1718 transitions. [2018-11-07 12:05:21,458 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1718 transitions. Word has length 146 [2018-11-07 12:05:21,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 12:05:21,459 INFO L480 AbstractCegarLoop]: Abstraction has 997 states and 1718 transitions. [2018-11-07 12:05:21,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 12:05:21,459 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1718 transitions. [2018-11-07 12:05:21,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2018-11-07 12:05:21,468 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 12:05:21,469 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 12:05:21,469 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 12:05:21,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 12:05:21,470 INFO L82 PathProgramCache]: Analyzing trace with hash -70137397, now seen corresponding path program 1 times [2018-11-07 12:05:21,470 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 12:05:21,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:05:21,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 12:05:21,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:05:21,472 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 12:05:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 12:05:22,127 WARN L179 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 10 [2018-11-07 12:05:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 38 proven. 108 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 12:05:22,620 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 12:05:22,620 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 12:05:22,622 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 260 with the following transitions: [2018-11-07 12:05:22,624 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [109], [111], [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], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [694], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-07 12:05:22,697 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 12:05:22,697 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 12:05:23,735 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 12:05:34,293 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 12:05:34,295 INFO L272 AbstractInterpreter]: Visited 125 different actions 125 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 12:05:34,329 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 12:05:34,329 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 12:05:44,057 INFO L227 lantSequenceWeakener]: Weakened 250 states. On average, predicates are now at 77.41% of their original sizes. [2018-11-07 12:05:44,058 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 12:05:44,423 INFO L415 sIntCurrentIteration]: We unified 258 AI predicates to 258 [2018-11-07 12:05:44,424 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 12:05:44,425 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 12:05:44,425 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2018-11-07 12:05:44,425 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 12:05:44,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 12:05:44,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 12:05:44,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 12:05:44,430 INFO L87 Difference]: Start difference. First operand 997 states and 1718 transitions. Second operand 7 states. [2018-11-07 12:09:13,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 12:09:13,308 INFO L93 Difference]: Finished difference Result 2173 states and 3739 transitions. [2018-11-07 12:09:13,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 12:09:13,308 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 259 [2018-11-07 12:09:13,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 12:09:13,317 INFO L225 Difference]: With dead ends: 2173 [2018-11-07 12:09:13,317 INFO L226 Difference]: Without dead ends: 1182 [2018-11-07 12:09:13,321 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 259 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 12:09:13,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2018-11-07 12:09:13,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 1180. [2018-11-07 12:09:13,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1180 states. [2018-11-07 12:09:13,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1908 transitions. [2018-11-07 12:09:13,358 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1908 transitions. Word has length 259 [2018-11-07 12:09:13,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 12:09:13,359 INFO L480 AbstractCegarLoop]: Abstraction has 1180 states and 1908 transitions. [2018-11-07 12:09:13,359 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 12:09:13,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1908 transitions. [2018-11-07 12:09:13,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2018-11-07 12:09:13,367 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 12:09:13,368 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 12:09:13,368 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 12:09:13,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 12:09:13,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1485361180, now seen corresponding path program 1 times [2018-11-07 12:09:13,369 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 12:09:13,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:09:13,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 12:09:13,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:09:13,370 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 12:09:13,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 12:09:14,279 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 145 proven. 190 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 12:09:14,280 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 12:09:14,280 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 12:09:14,280 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 345 with the following transitions: [2018-11-07 12:09:14,281 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [109], [111], [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], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [694], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-07 12:09:14,287 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 12:09:14,287 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 12:09:14,610 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 12:09:31,145 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-11-07 12:09:31,146 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-11-07 12:09:31,148 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-07 12:09:31,148 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 12:09:31,148 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 12:09:31,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 12:09:31,181 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 12:09:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 12:09:31,310 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 12:09:31,326 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-07 12:09:31,527 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 12:09:31,528 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 12:09:31,533 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 12:09:31,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:09:31 BoogieIcfgContainer [2018-11-07 12:09:31,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 12:09:31,535 INFO L168 Benchmark]: Toolchain (without parser) took 261868.54 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 3.9 GB in the end (delta: -2.5 GB). Peak memory consumption was 193.3 MB. Max. memory is 7.1 GB. [2018-11-07 12:09:31,536 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 12:09:31,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 806.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-11-07 12:09:31,537 INFO L168 Benchmark]: Boogie Procedure Inliner took 148.89 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 745.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -841.3 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. [2018-11-07 12:09:31,538 INFO L168 Benchmark]: Boogie Preprocessor took 135.09 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 12:09:31,539 INFO L168 Benchmark]: RCFGBuilder took 3643.37 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: 130.9 MB). Peak memory consumption was 130.9 MB. Max. memory is 7.1 GB. [2018-11-07 12:09:31,540 INFO L168 Benchmark]: TraceAbstraction took 257128.97 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.9 GB in the end (delta: -1.8 GB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. [2018-11-07 12:09:31,546 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 806.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 148.89 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 745.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -841.3 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 135.09 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3643.37 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: 130.9 MB). Peak memory consumption was 130.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 257128.97 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.9 GB in the end (delta: -1.8 GB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 61). Cancelled while BasicCegarLoop was analyzing trace of length 345 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 257.0s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 214.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 414 SDtfs, 1552 SDslu, 426 SDs, 0 SdLazy, 2376 SolverSat, 893 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 202.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 275 GetRequests, 257 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1180occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 28.5s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9978178797946243 AbsIntWeakeningRatio, 0.10077519379844961 AbsIntAvgWeakeningVarsNumRemoved, 18.282945736434108 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 431 NumberOfCodeBlocks, 431 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 428 ConstructedInterpolants, 0 QuantifiedInterpolants, 517895 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 62/170 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown