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/loop-invariants/mod4_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 16:51:49,783 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 16:51:49,785 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 16:51:49,801 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 16:51:49,801 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 16:51:49,802 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 16:51:49,803 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 16:51:49,805 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 16:51:49,807 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 16:51:49,808 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 16:51:49,809 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 16:51:49,809 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 16:51:49,810 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 16:51:49,811 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 16:51:49,812 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 16:51:49,813 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 16:51:49,814 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 16:51:49,816 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 16:51:49,817 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 16:51:49,819 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 16:51:49,820 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 16:51:49,821 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 16:51:49,824 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 16:51:49,824 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 16:51:49,825 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 16:51:49,826 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 16:51:49,827 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 16:51:49,827 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 16:51:49,828 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 16:51:49,829 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 16:51:49,830 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 16:51:49,830 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 16:51:49,831 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 16:51:49,831 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 16:51:49,832 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 16:51:49,833 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 16:51:49,833 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 16:51:49,848 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 16:51:49,849 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 16:51:49,849 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 16:51:49,849 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 16:51:49,850 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 16:51:49,850 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 16:51:49,850 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 16:51:49,850 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 16:51:49,850 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 16:51:49,851 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 16:51:49,851 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 16:51:49,851 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 16:51:49,852 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 16:51:49,852 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 16:51:49,852 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 16:51:49,852 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 16:51:49,852 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 16:51:49,853 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 16:51:49,853 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 16:51:49,853 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 16:51:49,853 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 16:51:49,853 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 16:51:49,854 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 16:51:49,854 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 16:51:49,854 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 16:51:49,854 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 16:51:49,854 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 16:51:49,855 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 16:51:49,855 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 16:51:49,855 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 16:51:49,855 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 16:51:49,855 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 16:51:49,856 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 16:51:49,856 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 16:51:49,904 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 16:51:49,921 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 16:51:49,926 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 16:51:49,928 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 16:51:49,928 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 16:51:49,929 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/mod4_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c [2018-11-07 16:51:49,991 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/056fbca71/df9d9884c32541fdb7c882fb2a120b21/FLAG7fbb804ce [2018-11-07 16:51:50,443 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 16:51:50,443 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/mod4_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c [2018-11-07 16:51:50,450 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/056fbca71/df9d9884c32541fdb7c882fb2a120b21/FLAG7fbb804ce [2018-11-07 16:51:50,467 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/056fbca71/df9d9884c32541fdb7c882fb2a120b21 [2018-11-07 16:51:50,477 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 16:51:50,479 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 16:51:50,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 16:51:50,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 16:51:50,484 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 16:51:50,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:51:50" (1/1) ... [2018-11-07 16:51:50,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44a4c63d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:51:50, skipping insertion in model container [2018-11-07 16:51:50,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:51:50" (1/1) ... [2018-11-07 16:51:50,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 16:51:50,523 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 16:51:50,738 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 16:51:50,742 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 16:51:50,760 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 16:51:50,780 INFO L193 MainTranslator]: Completed translation [2018-11-07 16:51:50,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:51:50 WrapperNode [2018-11-07 16:51:50,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 16:51:50,782 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 16:51:50,782 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 16:51:50,782 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 16:51:50,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:51:50" (1/1) ... [2018-11-07 16:51:50,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:51:50" (1/1) ... [2018-11-07 16:51:50,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 16:51:50,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 16:51:50,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 16:51:50,806 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 16:51:50,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:51:50" (1/1) ... [2018-11-07 16:51:50,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:51:50" (1/1) ... [2018-11-07 16:51:50,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:51:50" (1/1) ... [2018-11-07 16:51:50,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:51:50" (1/1) ... [2018-11-07 16:51:50,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:51:50" (1/1) ... [2018-11-07 16:51:50,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:51:50" (1/1) ... [2018-11-07 16:51:50,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:51:50" (1/1) ... [2018-11-07 16:51:50,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 16:51:50,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 16:51:50,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 16:51:50,834 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 16:51:50,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:51:50" (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 16:51:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 16:51:50,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 16:51:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 16:51:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 16:51:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 16:51:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 16:51:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-07 16:51:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-07 16:51:51,239 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 16:51:51,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:51:51 BoogieIcfgContainer [2018-11-07 16:51:51,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 16:51:51,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 16:51:51,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 16:51:51,245 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 16:51:51,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:51:50" (1/3) ... [2018-11-07 16:51:51,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e068a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:51:51, skipping insertion in model container [2018-11-07 16:51:51,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:51:50" (2/3) ... [2018-11-07 16:51:51,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e068a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:51:51, skipping insertion in model container [2018-11-07 16:51:51,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:51:51" (3/3) ... [2018-11-07 16:51:51,249 INFO L112 eAbstractionObserver]: Analyzing ICFG mod4_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c [2018-11-07 16:51:51,258 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 16:51:51,266 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 16:51:51,282 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 16:51:51,315 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 16:51:51,315 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 16:51:51,316 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 16:51:51,316 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 16:51:51,316 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 16:51:51,316 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 16:51:51,316 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 16:51:51,316 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 16:51:51,335 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-11-07 16:51:51,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-07 16:51:51,341 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 16:51:51,342 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 16:51:51,344 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 16:51:51,350 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 16:51:51,350 INFO L82 PathProgramCache]: Analyzing trace with hash 563245249, now seen corresponding path program 1 times [2018-11-07 16:51:51,352 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 16:51:51,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 16:51:51,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 16:51:51,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 16:51:51,399 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 16:51:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 16:51:51,458 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 16:51:51,460 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 16:51:51,461 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-07 16:51:51,461 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 16:51:51,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-07 16:51:51,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-07 16:51:51,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-07 16:51:51,483 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2018-11-07 16:51:51,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 16:51:51,505 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2018-11-07 16:51:51,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-07 16:51:51,507 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-07 16:51:51,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 16:51:51,515 INFO L225 Difference]: With dead ends: 32 [2018-11-07 16:51:51,516 INFO L226 Difference]: Without dead ends: 13 [2018-11-07 16:51:51,519 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-07 16:51:51,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-11-07 16:51:51,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-11-07 16:51:51,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-07 16:51:51,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-11-07 16:51:51,558 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-11-07 16:51:51,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 16:51:51,558 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-11-07 16:51:51,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-07 16:51:51,559 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-11-07 16:51:51,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-07 16:51:51,559 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 16:51:51,560 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 16:51:51,560 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 16:51:51,560 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 16:51:51,561 INFO L82 PathProgramCache]: Analyzing trace with hash -65738821, now seen corresponding path program 1 times [2018-11-07 16:51:51,561 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 16:51:51,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 16:51:51,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 16:51:51,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 16:51:51,563 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 16:51:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 16:51:51,839 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 16:51:51,839 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 16:51:51,840 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 16:51:51,840 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 16:51:51,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 16:51:51,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 16:51:51,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 16:51:51,842 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 5 states. [2018-11-07 16:51:51,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 16:51:51,938 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-11-07 16:51:51,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-07 16:51:51,939 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-11-07 16:51:51,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 16:51:51,940 INFO L225 Difference]: With dead ends: 21 [2018-11-07 16:51:51,940 INFO L226 Difference]: Without dead ends: 16 [2018-11-07 16:51:51,941 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 16:51:51,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-07 16:51:51,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-07 16:51:51,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-07 16:51:51,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-11-07 16:51:51,946 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 12 [2018-11-07 16:51:51,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 16:51:51,947 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-11-07 16:51:51,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 16:51:51,947 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-07 16:51:51,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-07 16:51:51,948 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 16:51:51,949 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 16:51:51,949 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 16:51:51,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 16:51:51,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1051591244, now seen corresponding path program 1 times [2018-11-07 16:51:51,950 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 16:51:51,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 16:51:51,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 16:51:51,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 16:51:51,952 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 16:51:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 16:51:52,119 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 16:51:52,120 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 16:51:52,120 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 16:51:52,122 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-11-07 16:51:52,123 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [10], [13], [15], [22], [25], [27], [33], [34], [35], [37] [2018-11-07 16:51:52,151 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 16:51:52,151 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 16:51:52,276 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 16:51:52,759 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 16:51:52,762 INFO L272 AbstractInterpreter]: Visited 12 different actions 61 times. Merged at 4 different actions 28 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 2 variables. [2018-11-07 16:51:52,799 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 16:51:52,799 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 16:51:52,903 INFO L227 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-11-07 16:51:52,904 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 16:51:53,153 INFO L415 sIntCurrentIteration]: We unified 14 AI predicates to 14 [2018-11-07 16:51:53,153 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 16:51:53,155 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 16:51:53,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-07 16:51:53,155 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 16:51:53,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 16:51:53,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 16:51:53,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-07 16:51:53,158 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 6 states. [2018-11-07 16:51:53,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 16:51:53,396 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-11-07 16:51:53,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 16:51:53,397 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-11-07 16:51:53,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 16:51:53,398 INFO L225 Difference]: With dead ends: 16 [2018-11-07 16:51:53,398 INFO L226 Difference]: Without dead ends: 0 [2018-11-07 16:51:53,399 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-07 16:51:53,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-07 16:51:53,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-07 16:51:53,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-07 16:51:53,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-07 16:51:53,400 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-11-07 16:51:53,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 16:51:53,401 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-07 16:51:53,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 16:51:53,401 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-07 16:51:53,402 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-07 16:51:53,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-07 16:51:53,660 WARN L179 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-11-07 16:51:53,778 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-07 16:51:53,779 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-07 16:51:53,779 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-07 16:51:53,779 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-07 16:51:53,779 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-07 16:51:53,779 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-07 16:51:53,779 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 9 16) the Hoare annotation is: true [2018-11-07 16:51:53,780 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 9 16) no Hoare annotation was computed. [2018-11-07 16:51:53,780 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-11-07 16:51:53,780 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 9 16) no Hoare annotation was computed. [2018-11-07 16:51:53,780 INFO L425 ceAbstractionStarter]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2018-11-07 16:51:53,780 INFO L425 ceAbstractionStarter]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2018-11-07 16:51:53,781 INFO L421 ceAbstractionStarter]: At program point L11-4(lines 11 13) the Hoare annotation is: (and (= (mod main_~x~0 4) 0) (<= 0 main_~x~0)) [2018-11-07 16:51:53,781 INFO L421 ceAbstractionStarter]: At program point L11-5(lines 11 13) the Hoare annotation is: (and (= (mod main_~x~0 4) 0) (<= 0 main_~x~0)) [2018-11-07 16:51:53,781 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-07 16:51:53,781 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-07 16:51:53,782 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-07 16:51:53,782 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-07 16:51:53,782 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-07 16:51:53,782 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-07 16:51:53,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:51:53 BoogieIcfgContainer [2018-11-07 16:51:53,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 16:51:53,793 INFO L168 Benchmark]: Toolchain (without parser) took 3314.78 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 765.5 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -628.1 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-11-07 16:51:53,794 INFO L168 Benchmark]: CDTParser took 0.20 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 16:51:53,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.08 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-11-07 16:51:53,796 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.46 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 16:51:53,797 INFO L168 Benchmark]: Boogie Preprocessor took 27.95 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 16:51:53,797 INFO L168 Benchmark]: RCFGBuilder took 407.27 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 765.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -815.8 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2018-11-07 16:51:53,798 INFO L168 Benchmark]: TraceAbstraction took 2549.74 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: 177.1 MB). Peak memory consumption was 177.1 MB. Max. memory is 7.1 GB. [2018-11-07 16:51:53,803 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 301.08 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 23.46 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. * Boogie Preprocessor took 27.95 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. * RCFGBuilder took 407.27 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 765.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -815.8 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2549.74 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: 177.1 MB). Peak memory consumption was 177.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: x % 4 == 0 && 0 <= x - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. SAFE Result, 2.4s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 39 SDtfs, 3 SDslu, 51 SDs, 0 SdLazy, 12 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.6s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.8571428571428571 AbsIntWeakeningRatio, 0.21428571428571427 AbsIntAvgWeakeningVarsNumRemoved, 0.21428571428571427 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 12 NumberOfFragments, 23 HoareAnnotationTreeSize, 9 FomulaSimplifications, 13 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 1350 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...